基因工程Genetic engineering helps cure diseases but faces challenges

基因工程的益处和风险英语作文The Pros and Cons of Genetic Engineering.Genetic engineering, often referred to as genetic modification or GM, has revolutionized the fields of biotechnology and agriculture. It involves the manipulation of the genetic material of organisms to create desired traits or characteristics. While this technology has brought numerous benefits, it has also raised concerns about its potential risks. In this article, we will explore the benefits and risks of genetic engineering.Benefits of Genetic Engineering.1. Improved Crop Yields and Resistance to Environmental Stressors.Genetic engineering has enabled scientists to create crops that are more resilient to environmental stressors such as drought, salinity, and extreme temperatures. Byinserting genes that confer resistance to these conditions, crops can thrive in adverse environments, leading to increased yields and food security.2. Reduced Reliance on Chemical Pesticides.GM crops have been developed with genes that make them resistant to certain pests or herbicides. This has reduced the need for chemical pesticides, which can be harmful to the environment and human health. The reduced use of pesticides not only protects the ecosystem but also lowers the cost of farming.3. Enhanced Nutritional Value.Genetic engineering can be used to enhance the nutritional value of food crops. For example, GM rice has been developed with higher levels of beta-carotene, a precursor of vitamin A, which can help combat vitamin A deficiency. Similarly, GM soybeans have been created with higher levels of omega-3 fatty acids, beneficial for heart health.4. Medical Applications.Genetic engineering has revolutionized medicine, enabling the production of drugs and vaccines at unprecedented speeds. GM bacteria can be used as bioreactors to produce expensive pharmaceutical proteins at a lower cost. Additionally, gene therapy techniques using GM viruses have the potential to treat genetic diseases by correcting the underlying genetic defects.5. Ecosystem Restoration.Genetic engineering can be used to restore damaged ecosystems. For instance, GM trees have been developed that grow faster and are more resistant to pests, enabling reforestation efforts to be more effective. Similarly, GM microorganisms can be used to clean up environmental pollution by breaking down harmful chemicals.Risks of Genetic Engineering.1. Ecological Impacts.The release of GM crops into the environment can have unintended ecological consequences. GM plants could crossbreed with wild relatives, leading to the spread of GM traits into native species. This could disrupt natural ecosystems and affect biodiversity.2. Health Concerns.There are concerns about the long-term health effects of consuming GM foods. Although numerous studies have found no significant differences between GM and non-GM foods in terms of safety and nutrition, some studies have suggested that GM foods may cause allergic reactions or affect the gut microbiome.3. Social and Economic Impacts.The widespread adoption of GM crops could have significant social and economic impacts. Farmers may rely heavily on GM seeds, leading to a decrease in biodiversityand genetic resources. Additionally, the monopolization of GM seed production by a few companies could lead to increased seed prices and limit farmers' access to affordable seed varieties.4. Regulatory Challenges.The regulation of GM products varies widely across the globe, creating challenges for international trade. The lack of harmonized regulations can lead to confusion and disputes among countries, affecting the global market for GM products.In conclusion, genetic engineering has brought numerous benefits to agriculture, medicine, and environmental restoration. However, it also poses potential risks that need to be carefully managed. The development and deployment of GM products should be based on rigorous scientific research and subject to thorough safety assessments and regulatory oversight.。

外研版七年级英语下册Module 4 综合素质评价限时: 60分钟满分: 100分一、单项选择(每小题1 分，共10 分)( ) 1. Would you like to go to the open-air concert at school? It will start in _______ hour and _______ half.A. an; anB. a; anC. an; aD. a; a( ) 2. —My parents and I will go on a trip to Shanghai _______ two days.—Have a good time!A. onB. atC. toD. in( ) 3. Please pass me a piece of ___________. I want to use it to write on the blackboard.A. rulerB. chalkC. bagD. book ( ) 4. Come to our shop today! You can buy ___________ clothes here because everything is on sale today.A. expensiveB. cheapC. heavyD. light ( ) 5. The _______ pollution (污染) is becoming more and more serious. We haven’t seen blue skies for several days.A. noiseB. waterC. airD. soil( ) 6. It is a world of flowers in spring in our city. You can see flowers _______.A. hereB. thereC. somewhereD. everywhere ( ) 7. —Where is Li Lei?—_______ he is in the playground, I guess.A. MayB. MaybeC. CanD. May be ( ) 8. Th e cake isn’t delicious. I don’t want to eat it _______.A. any moreB. some moreC. any longD. some many ( ) 9. I hope I’ll travel all over the world one day.(同义转换)A. the next dayB. in the futureC. at that timeD. the whole day( ) 10. — Tomorrow my parents will take me to Hong Kong Disneyland.—_______A. Best wishes to you!B. It’s a good idea.C. Have a good day!D. Good luck to you!二、完形填空(每小题1.5 分，共15 分)What will my life be like in 20 years? Have you thought about this 11 ? In my opinion, it’s really interesting to think about my own future.In the future, I think I’ll 12 as a writer. I’ll write many articles and books about Chinese culture and literature (文学). 13 I ’ll be like my favorite writer, Yu Qiuyu. If I become a writer, I will probably 14 in Xi’an, Nanjing or Hangzhou. I like these places 15 they are all nice cities with a long history and delicious food. I have quite a few old friends there, 16 . I’ll live in a house by the lake. My house will be 17 to store many books. I’ll keep a pet dog, and it will make me really 18 . Sometimes, I’ll walk with it in the quiet neighborhood.I hope my life in the future will be peaceful and happy. 19 of us will only be alive for 90 years at most, so we must cherish (爱惜) every moment. Everyone’s dreams can 20 as long as (只要) we try our best.( ) 11. A. idea B. life C. question D. work ( ) 12. A. like B. become C. write D. work ( ) 13. A. Maybe B. First C. Only D. Also ( ) 14. A. come B. get C. go D. live( ) 15. A. after B. because C. but D. if( ) 16. A. too B. also C. either D. to( ) 17. A. enough small B. small enoughC. enough bigD. big enough( ) 18. A. bored B. interesting C. happy D. different ( ) 19. A. Some B. Most C. All D. None ( ) 20. A. come back B. come true C. come in D. come on 三、阅读理解(每小题2 分，共20 分)AThe computers changed our lives in the 1980s, the Internet changed our lives in the 1990s, and the robots will change our lives in the new century. Do you think there will be robots in people’s homes? It’s NOT a dream that every home will have a robot.Now, robots are not only able to help people do the housework, but they can also help the doctors do the difficult operations, play chess with people, play the piano and so on.A new cooking robot is used in Beijing. It can cook all the dishes on the menu. You only need to wait two to four minutes. In the future, the robot will be a nurse, a security guard, or a partner in your life.Experts believe robots will be used everywhere from the industrial robots to service robots. In the future, robots will become part of the family, and provide close service for people. We all look forward to the new robot age.( ) 21. _______ changed our lives in the 1990s.A. The robotsB. The computersC. The TV setsD. The Internet( ) 22. The underlined word “operations” probably means “_______” in Chinese.A. 菜肴B. 手术C. 程序D. 项目( ) 23. A new cooking robot is used in _______.A. ShanghaiB. BeijingC. NanjingD. London( ) 24. Now robots can do many things EXCEPT _______.A. help people do the houseworkB. help the doctors do the difficult operationsC. play chess with peopleD. shop for food and drinks( ) 25. The passage is mainly about _______.A. robotsB. shoppingC. houseworkD. computersB [2022·天津河东区期中]Here is a page from a magazine called Future. Read the following information about things that may happen in ten years.Cars will run on solar power and will be much cleaner. They will be much safer. For example, if you are too close to another car or if you are driving dangerously, your car will slow down or stop by itself.New cities will have to be built in the sea. Some cities on water will have two levels. People will live on the upper level; the lower level will be used for traffic, shops and factories.Biotechnology (生物技术) will make food better and healthier. Plants without insects or illnesses will be developed. The taste of fruit and vegetables will be better and food will be kept longer.Many new ways to cure (治愈) illnesses will be found. People will use products of genetic engineering (基因工程) to cure more illnesses. However, some new illnesses will appear.( ) 26. What will happen in the future according to the passage?A. The air won’t be much cleaner.B. Cars will run by itself without a driver.C. It’ll be much more dangerous to drive a car.D. There’ll be fewer accidents and less pollution.( ) 27. Where will new cities have to be built in the future?A. In the sea.B. In the sky.C. Underground.D. On the land.( ) 28. What will be made better and healthier by biotechnology?A. Medicine.B. Toys.C. Food.D. Clothes. ( ) 29. Genetic engineering will help doctors to cure more _______.A. insectsB. illnessesC. vegetablesD. cities ( ) 30. Which is the best title of the passage?A. Cars in the futureB. Get ready for the futureC. How to keep food longerD. Where people will live in the future四、词汇运用(每小题1 分，共10 分)A)根据首字母或汉语提示完成句子31. E is ready. Let’s begin our English party now.32. I meet interesting people every day and ask them q .33. [2022·潮州潮安区期末] The sun ___________ (升起) in the east every day.34. The workers are ___________ (运送) vegetables to the island by ship now.35. There is going to be a strong ___________ (风) tomorrow afternoon.B)根据汉语意思完成句子36. 如果我们努力，我们的梦想就会实现。

有关基因工程的利与弊的英语作文全文共3篇示例，供读者参考篇1Title: The Pros and Cons of Genetic EngineeringGenetic engineering has been a controversial topic in the scientific community and society as a whole. While it has proven to have many benefits, there are also concerns about the ethical and long-term consequences of manipulating genes. In this essay, we will explore the advantages and disadvantages of genetic engineering.On the positive side, genetic engineering has revolutionized the field of medicine. Scientists have been able to develop gene therapy treatments for a variety of genetic disorders, such as cystic fibrosis and Huntington's disease. This has significantly improved the quality of life for those affected by these conditions. In addition, genetic engineering has also played a crucial role in the development of genetically modified crops, which has increased food production and reduced the need for chemical pesticides.Furthermore, genetic engineering has the potential to cure diseases that were previously considered untreatable. For example, scientists are currently researching ways to use gene editing techniques to eliminate HIV from infected individuals. This groundbreaking research could have a significant impact on global health and could potentially lead to the eradication of the disease.However, there are also concerns about the ethical implications of genetic engineering. Critics argue that manipulating genes raises a number of ethical questions, such as whether it is right to alter the genetic makeup of an individual or whether it is morally acceptable to create “designer babies” with desired traits. There are also concerns about the potential for genetic discrimination, as individuals who do not have access to gene editing technologies may be at a disadvantage in society.Another issue with genetic engineering is the potential for unintended consequences. Manipulating genes can have unpredictable effects, and there is always a risk of unintended mutations or genetic abnormalities. This raises concerns about the long-term impact of genetic engineering on the environment and human health.In conclusion, genetic engineering has the potential to bring about significant benefits in the fields of medicine and agriculture. However, it is important to carefully consider the ethical implications and potential risks associated with manipulating genes. As technology continues to advance, it is crucial that we have a thoughtful and informed debate about the implications of genetic engineering on society as a whole.篇2Genetic engineering, also known as genetic modification, is a process in which scientists alter the genetic material of living organisms. This field of science has brought about both benefits and drawbacks to society. In this essay, we will discuss the advantages and disadvantages of genetic engineering.First of all, genetic engineering has many advantages. One of the main benefits is the ability to produce genetically modified crops that are resistant to pests and diseases. This can help farmers increase their crop yield and reduce their reliance on chemical pesticides. Genetic engineering has also allowed for the development of crops that are more nutritious and have a longer shelf life, which can help alleviate food shortages in developing countries.In the medical field, genetic engineering has made great advancements in the treatment of various diseases. Scientists have been able to modify genes to produce proteins that can be used to treat genetic disorders like cystic fibrosis and muscular dystrophy. Additionally, genetic engineering has made it possible to create genetically modified organisms (GMOs) that produce pharmaceuticals, such as insulin, in a morecost-effective manner.On the other hand, there are also drawbacks to genetic engineering. One of the main concerns is the potential for unintended consequences. When scientists alter the genetic material of an organism, there is a risk of causing unintended changes that could have negative impacts on the environment or human health. For example, there have been concerns about the impact of GMOs on biodiversity and the development of antibiotic-resistant bacteria.Another drawback of genetic engineering is the ethical concerns surrounding the manipulation of living organisms. Critics argue that scientists are playing "god" by altering the genetic code of organisms, and that this could have unforeseen consequences. There are also concerns about the potential forgenetic discrimination, where individuals could be discriminated against based on their genetic makeup.In conclusion, genetic engineering has the potential to bring about many benefits, such as improved crop yields, new medical treatments, and the production of pharmaceuticals. However, there are also risks and ethical concerns associated with this field of science. It is important for scientists, policymakers, and society as a whole to carefully consider the impacts of genetic engineering and ensure that it is used in a responsible and ethical manner.篇3Title: The Pros and Cons of Genetic EngineeringGenetic engineering, also known as genetic modification or recombinant DNA technology, is a powerful tool that allows scientists to manipulate the genetic material of living organisms. While this technology holds great promise for advancements in medicine, agriculture, and environmental protection, it also raises ethical and safety concerns. In this essay, we will explore the advantages and disadvantages of genetic engineering.One of the main benefits of genetic engineering is its potential to revolutionize the field of medicine. Scientists arealready using genetic engineering to develop new treatments and cures for a wide range of diseases, including cancer, diabetes, and genetic disorders. By modifying the genetic makeup of organisms, researchers can create genetically modified organisms (GMOs) that produce valuable pharmaceuticals and therapeutic proteins. This has the potential to make medical treatments more effective and accessible to a wider range of patients.In agriculture, genetic engineering has the potential to increase crop yields, reduce the need for pesticides, and improve the nutritional content of food. By introducing genes from other organisms into plants, scientists can create GMOs that are resistant to pests, diseases, and environmental stresses. This can help farmers increase their productivity and reduce their dependence on chemical inputs. Genetic engineering also has the potential to create crops that are more nutritious and better able to withstand climate change, helping to ensure global food security.However, genetic engineering also has its drawbacks. One of the main concerns is the potential for unintended consequences. When scientists modify the genetic makeup of organisms, it is possible that they may inadvertently create new allergens, toxins,or other harmful substances. This could have serious implications for human health, animal welfare, and environmental safety. There is also the risk of genetically modified organisms escaping into the wild and disrupting natural ecosystems, leading to unforeseen ecological consequences.Another concern with genetic engineering is the ethical implications of manipulating the genetic material of living organisms. Some people argue that genetic engineering raises moral questions about the boundaries of human intervention in the natural world. For example, the creation of designer babies with enhanced physical or intellectual traits raises concerns about eugenics and discrimination. There are also concerns about the commercialization of genetic engineering, with companies patenting genes and controlling access to genetic resources.In conclusion, genetic engineering has the potential to bring about great benefits for society, but it also raises important ethical and safety concerns. It is important for scientists, policymakers, and the public to engage in a thoughtful and informed debate about the implications of genetic engineering for our health, food supply, and environment. By carefully weighing the pros and cons of this technology, we can ensurethat genetic engineering is used responsibly and ethically to benefit humankind and the planet.。

转基因技术及其在生活中的应用的英文作文全文共10篇示例，供读者参考篇1Transgenic technology is a really cool thing that scientists use to make changes to the genes of plants and animals. It's like magic, but real! With transgenic technology, scientists can make crops grow faster, resist diseases, and even have certain nutrients that are good for our health.In our daily lives, we can see the benefits of transgenic technology in many ways. One common example is genetically modified (GM) crops. These crops are created by inserting genes from other organisms into the plant's DNA. This allows the crops to have special traits, like being resistant to pests or herbicides. As a result, farmers can produce more food using fewer chemicals, which is good for the environment and for our health.Another way transgenic technology is used in our lives is through genetically modified foods. These foods have been modified to have certain qualities, like being more nutritious or having a longer shelf life. For example, some fruits and vegetables are genetically modified to have more vitamins orminerals, making them healthier for us to eat. And did you know that certain types of fish have been genetically modified to grow faster and bigger? This means we can have more fish to eat without depleting the ocean's resources.In addition to agriculture, transgenic technology is also used in medicine. Scientists can create transgenic animals that produce important proteins, like insulin or antibodies, that can be used to treat diseases in humans. This has revolutionized the field of medicine and has helped to save countless lives.Overall, transgenic technology is an amazing tool that has the potential to improve our lives in many ways. By continuing to research and innovate in this field, scientists can unlock even more possibilities for the future. Who knows what other exciting applications of transgenic technology we will see in the years to come? It's definitely something to look forward to!篇2Transgenic technology is like super cool magic that can make plants and animals do amazing things! Let me tell you all about it and how we use it in our daily lives.First of all, what is transgenic technology? It’s when scientists take genes from one kind of living thing and put theminto another kind of living thing. This way, they can make plants and animals grow faster, resist diseases, and even produce special substances that we can use.For example, did you know that some of the yummy fruits and veggies we eat are actually made with transgenic technology? Yep, things like corn, soybeans, and tomatoes have been modified to be tastier, bigger, and stay fresh longer. Isn’t that awesome?But it’s not just about making food better. Transgenic technology is also used to make medicines, like insulin for people with diabetes. Scientists can put human genes into bacteria or animals, so they can produce the medicine we need. It’s like having a superhero power to heal people!And let’s not forget about the environment. Transgenic technology can help us protect our planet by making plants that can grow in harsh conditions, like drought or salty soil. This way, we can save water and land, and have more food for everyone.So, next time you eat a juicy apple or take your medicine, remember that transgenic technology is behind it al l. It’s like a magical tool that helps us live healthier and happier lives. How cool is that?篇3Genetic modification technology is a cool and amazing thing in science that can make plants and animals even better. It is like giving them superpowers to grow faster, resist diseases, or produce more food. It’s like a magic trick but science makes it happen!In our daily lives, we can see genetic modification in many foods that we eat. For example, some fruits and vegetables are modified to be more delicious and last longer. They can also be modified to resist pests so that farmers don’t need to use harmful chemicals on them. This means we can have yummier and healthier food without worrying about bugs and chemicals.Genetic modification is also used in medicine to create medicines that can help us fight diseases better. Scientists can modify bacteria and viruses to produce vaccines that make us immune to diseases like flu or measles. This is super important because it helps keep us healthy and strong.But we should also be careful with genetic modification because it can have some risks. Sometimes, modified plants or animals can have unexpected changes that may harm our health or the environment. That’s why scientists need to do a lot oftests and research before releasing modified organisms into the wild.Overall, genetic modification is a super cool and useful technology that can make our lives better. But we should always be careful and responsible when using it to make sure that we don’t cause any harm. It’s like having a superpower – we need to use it wisely and for the good of everyone.篇4Title: The Wonderful World of GMOsHi guys, today we are going to talk about GMOs! Do you know what GMOs are? GMOs stand for genetically modified organisms. It means scientists change the genes of plants or animals to make them better in some way. Cool right?GMOs can be found in our daily lives in many ways. For example, do you like eating corn chips? Those come from GMO corn that can resist pests better. And what about that yummy strawberry jam we love to spread on our toast? That comes from GMO strawberries that are sweeter and juicier. Even the milk we drink can come from cows that have been fed GMO corn to make more nutritious milk!GMOs are also used in medicine. Scientists can use GMO bacteria to make insulin for people with diabetes. They can also use GMO plants to make vaccines to keep us healthy. Isn't that amazing?But some people are worried about GMOs. They say they might not be safe to eat or that they could harm the environment. That's why scientists are always testing GMOs to make sure they are safe for us and the planet.So, next time you enjoy your favorite snack or take your medicine, remember that GMOs are all around us, making our lives better in so many ways. Yay for science!篇5Genetic engineering is a really cool science that helps us make changes to living things' DNA. With this technology, scientists can make plants and animals do things they couldn't do before. It's like magic but with science!One way genetic engineering is used in our daily lives is in agriculture. Farmers can grow crops that are resistant to pests and diseases thanks to genetically modified seeds. This means they don't have to spray as many harmful chemicals on their plants, which is good for the environment. Genetically modifiedcrops also produce more food, helping to feed more people around the world.Another way genetic engineering is used is in medicine. Scientists can make medicines that treat diseases by changing the DNA of plants or animals. For example, a genetically engineered bacteria called insulin is used to treat people with diabetes. Scientists are also working on using genetic engineering to cure diseases like cancer and Alzheimer's.Genetic engineering is also used in making our food taste better. Genetically modified fruits and vegetables can be sweeter, juicier, and more colorful. They can also stay fresh longer and have more nutrients. This means we can enjoy our favorite foods all year round!In conclusion, genetic engineering is a powerful tool that has many applications in our everyday lives. It helps us grow more food, develop new medicines, and make our food taste better. It's like science fiction come to life, and it's pretty amazing!篇6Title: Transgenic Technology and Its Applications in Daily LifeHey everyone! Today I want to talk about something super interesting - transgenic technology! Have you ever heard of it before? Well, let me explain it to you in simple terms. Transgenic technology is when scientists take genes from one organism and put them into another organism. This can help create new and improved plants, animals, and even bacteria!So, how is transgenic technology used in our daily lives? Let me give you some examples. Have you ever eaten a juicy, delicious GMO (genetically modified organism) fruit like a seedless watermelon or a sweet corn? Well, those are all thanks to transgenic technology! Scientists have been able to create these yummy fruits by adding genes that make them grow bigger and sweeter.Transgenic technology is also used in agriculture to make crops more resistant to pests and diseases. This means that farmers can grow more food without using harmful pesticides. Isn't that amazing? And did you know that some medicines, like insulin, are made using transgenic technology too? It's true! Scientists have engineered bacteria to produce insulin, which helps people with diabetes stay healthy.In conclusion, transgenic technology has so many cool applications in our daily lives. It has helped us create better food,improve agriculture, and even develop life-saving medicines. So next time you see a GMO product or hear about transgenic technology, remember that it's all about making our world a better place! Thanks for reading, guys!篇7Transgenic technology is a really cool and interesting thing that scientists use to make changes to living things like plants and animals. This technology is commonly used in our daily life in many ways.First of all, let's talk about how transgenic technology is used in agriculture. Farmers use transgenic crops that have been modified to be resistant to pests and diseases. This means that farmers don't have to use as many pesticides, which is better for the environment and for our health. Transgenic crops also have higher yields, which means there is more food for all of us to eat.Another way that transgenic technology is used is in medicine. Scientists can use transgenic animals to study diseases and develop new treatments. For example, transgenic mice can be used to mimic human diseases like cancer, which helps scientists understand how the disease works and how it can be treated.Transgenic technology is also used in industry. Some bacteria have been modified to produce chemicals and enzymes that are used in making products like laundry detergent and biofuels. This is more sustainable than using traditional methods, which can be harmful to the environment.In conclusion, transgenic technology is a really important and useful tool that is used in many aspects of our daily life. It has helped us improve agriculture, medicine, and industry in ways that were never possible before. So next time you hear about transgenic technology, remember that it's not just something for scientists to play around with – it's something that helps make our world a better place.篇8Transgenic technology is a super cool and amazing thing in our world today! It's like magic that scientists can use to make changes to the DNA of plants and animals. This technology has so many uses in our everyday lives, and I'm going to tell you all about it!One way transgenic technology is used is in agriculture. Farmers can use transgenic plants that are resistant to pests and diseases, so they can grow more food and have better harvests.This means we have more fruits and vegetables to eat, and they are healthier too! Isn't that awesome?Transgenic technology is also used to make medicines. Scientists can use it to produce proteins that are used to treat diseases like diabetes and cancer. This means people can get the medicine they need to stay healthy and strong. It's like having a superhero power to fight off bad germs and viruses!Did you know that transgenic technology is used to make genetically modified organisms (GMOs)? These are plants and animals that have had their DNA changed to make them better in some way. For example, GMOs can have more nutrients or be able to grow in different environments. This helps us have more food to eat and keeps us from going hungry.In conclusion, transgenic technology is like a super awesome tool that scientists can use to make our lives better. It helps us grow more food, make better medicine, and even protect the environment. So the next time you see a genetically modified plant or animal, just remember that it's all thanks to transgenic technology!篇9Transgenic technology is pretty cool because it helps us make all kinds of things better! From crops to medicine, transgenic technology has a lot of useful applications in our daily lives.One way we use transgenic technology is to make crops that are stronger and more resistant to pests. By inserting genes from other organisms into plants, scientists can help them grow better and produce more food. This is super important because it means we can feed more people and reduce hunger around the world.Transgenic technology is also used to make medicines that can help us when we're sick. Scientists can genetically modify bacteria or other organisms to produce proteins that can be used to treat diseases. This has led to the development of important drugs like insulin for diabetics and vaccines for diseases like hepatitis.But transgenic technology isn't just for food and medicine. It can also be used to make other products better, like fabrics and fuels. For example, scientists are working on creating bacteria that can produce biofuels more efficiently, which could help us reduce our reliance on fossil fuels and protect the environment.Overall, transgenic technology is a super cool and useful tool that helps us make our lives better in so many ways. It shows us how science can be used to solve problems and improve the world around us. Who knows what amazing things we'll be able to do with transgenic technology in the future? The possibilities are endless!篇10Transgenic technology is a really cool and fascinating science thing that can do a lot of amazing stuff. It's like when scientists take genes from one organism and put them into another organism to make it have certain special traits. For example, they can make crops that are resistant to pests or have more nutrients.One way that transgenic technology is used in everyday life is in agriculture. Farmers can grow crops that have been genetically modified to resist diseases or pests, so they don't have to use as many pesticides. This is good for the environment and also makes the food we eat safer and healthier.Another way transgenic technology is used is in medicine. Scientists can make transgenic animals that produce human proteins, like insulin, that can be used to treat diseases. This iscalled "pharming" and it's a really amazing way to make important medicines more accessible.Transgenic technology is also used in research to study how certain genes work and to develop new treatments for diseases. Scientists can create transgenic animals that have certain diseases so they can study how the disease progresses and how it can be treated.Overall, transgenic technology is a super cool and valuable tool that can help improve our lives in so many ways. It's important to keep researching and using this technology responsibly to make sure that it benefits us and the environment.。

专业《分子生物学》复习题(仅供参考)一名词解释：1、基因gene：基因是产生一条多肽链或功能RNA所必须的全部核苷酸序列,是决定遗传性状的功能单位。

2、基因组genome：细胞或生物体的一套完整单倍体的遗传物质的总和。

4、顺式作用元件：是指基因序列中可在原位发挥作用并影响其在物理上相连的基因表达的保守结构。

如启动子、上游启动子元件、增强子、终止子等。

5、反式作用因子：是指真核细胞内含有的大量可以通过直接或间接结合顺式作用元件而调节基因转录活性的蛋白质因子。

如RNA聚合酶。

6、启动子promoter：是与RNA聚合酶特异性结合并起始转录的DNA区域。

7、增强子enhancer：位于真核基因中远离转录起始点，能明显增强启动子转录效率的特殊DNA序列。

它可位于被增强的转录基因的上游或下游，也可相距靶基因较远。

8、基因表达gene expression：是指生物基因组中结构基因所携带的遗传信息经过转录、翻译等一系列过程，合成特定的蛋白质，进而发挥其特定的生物学功能和生物学效应的全过程。

9、分子克隆molecular expression：在体外对DNA分子按照既定目的和方案进行人工重组，将重组分子导入合适宿主，使其在宿主中扩增和繁殖，以获得该DNA分子的大量拷贝。

10、基因工程genetic engineering：有目的的通过分子克隆技术，人为的操作改造基因，改变生物遗传性状的系列过程。

11、 DNA变性Denaturation：在物理或化学因素的作用下，导致两条DNA链之间的氢键断裂，而核酸分子中的所有共价键则不受影响。

12、 DNA复性renaturation：当促使变性的因素解除后，两条DNA链又可以通过碱基互补配对结合形成DNA双螺旋结构。

13、退火annealing：指将温度降至引物的TM值左右或以下，引物与DNA 摸板互补区域结合形成杂交链。

14、反义RNA antisense RNA：碱基序列正好与有意义的mRNA互补的RNA 称为反义RNA。

基因工程的基本操作程序的四个步骤英文回答：Gene engineering, also known as genetic engineering, is a scientific field that involves manipulating an organism's genes to achieve desired traits or characteristics. The basic operation procedures of gene engineering can be divided into four steps: identification of target gene, isolation of target gene, gene modification, and gene expression.The first step in gene engineering is theidentification of the target gene. This involvesidentifying the specific gene that is responsible for the desired trait or characteristic. Scientists use various techniques, such as DNA sequencing and gene mapping, to identify and locate the target gene within the organism's genome. For example, if researchers want to enhance the disease resistance of a crop, they would identify the gene that codes for disease resistance.Once the target gene has been identified, the next step is to isolate it from the organism's genome. This is done through a process called gene isolation. Scientists use enzymes, such as restriction enzymes, to cut the DNA at specific points and isolate the target gene. The isolated gene is then purified and prepared for further manipulation. For instance, if the target gene is responsible for producing a specific protein, scientists would isolate the gene coding for that protein.After the target gene has been isolated, the next stepis gene modification. This involves altering the targetgene to introduce desired changes or traits. Scientists can use various techniques, such as gene splicing or gene synthesis, to modify the gene. Gene splicing involvescutting the target gene and inserting new DNA sequences, while gene synthesis involves creating an entirely new gene from scratch. For example, if scientists want to create a genetically modified organism that produces a higher yieldof a particular crop, they would modify the target gene responsible for crop yield.The final step in gene engineering is gene expression. This step involves introducing the modified gene into the target organism and ensuring that it is expressed or activated. Scientists use techniques such as gene delivery systems or gene transfer to introduce the modified geneinto the organism's cells. Once inside the cells, the modified gene is integrated into the organism's genome and starts producing the desired trait or characteristic. For instance, if scientists have modified a gene to produce a specific enzyme in a bacteria, they would introduce the modified gene into the bacteria and ensure that the enzymeis expressed and produced.中文回答：基因工程，也被称为遗传工程，是一门涉及操纵生物体基因以实现所需特征或特性的科学领域。

人教版八年级上册英语第七单元Unit7测试卷（含答案）第一部分选择题(共50分)一、阅读理解(共20小题，每小题2分；满分40分)第一节阅读下面语言材料，从每题所给的A、B、C、D四个选项中选出最佳选项。

A,[科学素质·科学探究])By 2050, nearly 70% of the world's population (人口) will live in cities. Many of the cities will become large ones with a population of more than 10 million. Moving people around each large city will be difficult. The traffic speed (速度) in London will fall to about 7 miles per hour, around the same speed as it was 150 years ago, in the days of the horse and cart. But city planners are working on ways to solve(解决) the problem.Robot TaxisBusesBikes1. ____ are working on ways to solve the traffic problem.A. People in the villageB. People in XiamenC. People in the streetsD. City planners2. ____ ways of transport will help the traffic in the future according to the passage.A. TwoB. ThreeC. FourD. Five3. Which of the following is NOT true according to the passage?A. The traffic speed in London will be low because of the big population.B. There are many robot taxis in the city streets now.C. Buses can make the way by themselves in the future.D. Roads for bikes will be high above city streets.4. Where can we see this article?A. In a storybook.B. In a magazine.C. In a diary.D. In a travel guide.B[科学素质·科学探究]Here is a page from a magazine called Future. Read the following information about things that may happen in ten years.Cars will run on solar power(太阳能) and will be much cleaner. They will be much safer. For example, if you are too close to another car or if you are driving dangerously, your car will slow down or stop by itself.New cities will have to be built in the sea. Some cities on water will have two levels (层). People will live on the upper level; the lower level will be used for traffic, shops and factories.Biotechnology(生物技术) will make food better and healthier. Plants without insects or illnesses will be developed. The taste of fruit and vegetables will be better and food will be kept longer.Many new ways to cure(治愈) illnesses will be found. People will use products of genetic engineering(基因工程) to cure more illnesses. However, some new illnesses will appear.5. What will happen in the future according to the passage?A. The air won't be much cleaner.B. Cars will run by themselves without a driver.C. It'll be much more dangerous to drive a car.D. There will be fewer accidents and less pollution.6. Where will new cities have to be built in the future?A. In the sea.B. In the sky.C. Underground.D. On the land.7. By using biotechnology, ____.A. plants will have more illnessesB. the food will be kept shorterC. fruit and vegetables will taste betterD. there will be more insects8. Which is the passage mainly about?A. Cars in the future will be much safer.B. There will be many changes in the future and we should get ready.C. How we can keep food longer and make ourselves healthier.D. Where people will live in the future.CRobots may seem smart, but they cannot even pick up a chess piece. Let's take a look at some tasks that are easy for kids but not for robots.Pick things up Picking things up is not easy. If we drop our pencil on the floor, our brains work hard. First we must find the pencil. Then we move our hands to it. A robot cannot always move its “hand” to the right place. When we touch the pencil, it might roll (滚动) a little bit. Robots cannot easily understand this either. So, if you drop a pencil on the floor, a robot will probably roll it around the room.Get around in large space If someone drops us in a building we didn't go to, we might feel a bit lost. But we can look around, find a door and get out quickly. But a robot will look everywhere for a door, even on ceilings (天花板) and floors. This is because it's hard for robots to understand space，especially large and blank things such as walls or ceilings.Understand the world made by people Because of common sense, we do not look for doors on the ceiling. We pick up a coffee cup by its handle (把手). We feel whether(是否) it has coffee inside and whether it is hot.A robot may turn the cup upside down. It may hold the hot part of the cup. Scientists have tried teaching robots common-sense rules. But even huge databases (数据库) don't help much. Maybe they need more time to learn.9. What may happen when a robot tries to pick up a pencil?A. It may break the pencil.B. It may roll the pencil.C. It may not find the pencil.D. It may watch the pencil roll.10. What will a robot do in order to find a door?A. Dig a big hole in the wall.B. Only look for large and blank things.C. Search everywhere even the ceilings.D. Drop itself in a corner in the building.11. What can we learn about common sense from the last two paragraphs?A. Robots can teach themselves common sense.B. Robots have the same common sense as humans.C. Scientists tried teaching robots common-sense rules.D. Huge databases are very helpful in teaching robots common sense.12. What can we learn from the passage?A. Robots are not helpful to humans at all.B. Robots are good at picking up small things.C. It is easy for robots to understand large space.D. Robots have trouble understanding our world.DDo you ever imagine(想象) what life will be like in 2060? An international group of forty scientists have made some surprising predictions. They said that in the next forty years, our lives would change beyond(超出) our wildest dreams.Firstly, humans can grow body parts themselves. Dr. Ellen Heber-Katz is one ofthe forty scientists. He says, “People will think it common that sick organs (器官) can be repaired. It's just like the way we fix a car. ” Damaged parts will be taken away. Scientists could use human cells (细胞) to grow new organs. New technologies like this will also help people to live longer. Within forty years, most people will be able to live up to one hundred years.Secondly, the scientists have predicted that a machine will be invented to “read” the minds of animals. In 2060, we will be able to “talk” to animals. Scientists say that humans may first “talk” with mammals (哺乳动物) and then other vertebrates (脊椎动物) such as fish.Thirdly, our houses might also change beyond our imagination. Dr. Susan Greenfield predicts that when you enter the living room, sensors (传感器) will know. They will turn on the lights. If you talk to the lights, they will change to the color of your choice.But what would be the biggest breakthrough (突破) over the next forty years? A number of scientists believe it would be the discovery of aliens. NASA scientist Chris McKay says, “We may find aliens in space and talk with them. ” He believes marks of alien life may even be found here on Earth.Does life in 2060 sound cool to you? Let's wait and see what will really happen then!13. Which of the following is mentioned in the passage?A. In 2060, humans may be able to communicate with dogs and aliens.B. Most people will be able to live up to two hundred years in forty years.C. The sensors will turn off the lights after you leave the living room in 2060.D. Scientists will find marks of alien life on Mars.14. Which of the following best shows the structure of the passage? (P1＝Paragraph 1,P2＝Paragraph 2…)15. The writer wrote the passage in a tone (语气)of ____.A. regretB. surpriseC. relief(轻松)D. anger16. What is the best title for the passage?A. Life in 2060B. The Biggest PlanC. How to Live LongerD. The Most Possible Future第二节阅读短文，从方框内所给的选项中选出可以填入空白处的最佳选项，其中有一个多余的选项。

八年级上册英语期末复习--任务型阅读理解___________________________________________________________________5．Why do young people grow taller than their parents?__________________________________________________________________二Bruce is a little boy, and he is seven years old.One Friday afternoon, he went to the cinema. It was his first time to do that. He bought a ticket and then went in. But after two or three minutes he came out ,bought a second ticket and went in again. Two or three minutes later he came out and asked for another ticket.Then the girl in the ticket office asked him, " Why do you buy so many tickets? How many friends do you meet? Bruce answered, "No, I have no friends here. But a big man always stops me at the door and tears(撕)my ticket into pieces.任务一：回答51、52、53题。

1. Was it Bruce's first time to go to the cinema?一Basketball players are usually very tall. Because they need to put the ball into the basket.Other sports players may be shorter than them.Short people often have better balance(平衡)than tall people ，so they don't fall over very often. In some sports the players must have good balance .For example ，in table tennis ，they don't need to have long legs to run fast ！Some of the fast runners in the world are not very tall.Some people are tall and some are short.The tallest man in the world is 2.41meters tall.Today young people in many countries grow taller than their parents. This is because they eat better than their parents. Good food can help children grow.根据短文内容，回答下列问题。

从基因工程获益的英语作文The Benefits of Genetic Engineering.Genetic engineering, often referred to as genetic modification or GM, has revolutionized the field of biotechnology, promising a wide array of benefits for both humanity and the environment. This remarkable technology allows scientists to manipulate the genetic material of organisms, introducing, removing, or modifying genes to achieve desired traits. The potential applications of genetic engineering are vast, ranging from agricultural productivity to medical advancements, and its impact on our world is profound.In the realm of agriculture, genetic engineering has the potential to significantly increase crop yields and resilience to environmental stresses. By inserting genes that confer resistance to herbicides or tolerance to drought, scientists can create crops that are more robust and require less input from farmers. This not only enhancesfood security but also reduces the environmental footprint of agriculture, as less land, water, and chemicals are needed to produce the same amount of food.Moreover, genetic engineering can be used to improve the nutritional value of foods. For instance, scientists have developed GM crops that are enriched with essential vitamins and minerals, such as iron and beta-carotene. This innovation has the potential to address micronutrient deficiencies that affect millions of people worldwide, particularly in developing countries.In the medical field, genetic engineering holds the promise of revolutionizing healthcare. Gene therapy, a subset of genetic engineering, aims to correct genetic defects that underlie many inherited diseases. By inserting healthy genes into patient cells, scientists hope to treat diseases like cystic fibrosis, hemophilia, and even some forms of cancer. The potential of gene therapy is immense, as it offers a personalized approach to medicine, tailored to the specific genetic makeup of each individual.Genetic engineering also plays a crucial role in the development of vaccines and antiviral drugs. By understanding the genetic sequences of pathogens,scientists can design more effective vaccines that target specific diseases. Similarly, genetic engineering can be used to create antiviral drugs that are tailored to neutralize specific viruses, offering hope in the fight against diseases like HIV and influenza.In addition to its direct applications in healthcare, genetic engineering has the potential to transform the pharmaceutical industry. By manipulating the genetic code of microorganisms, scientists can produce complex drugs and biopharmaceuticals more efficiently and cheaply. This innovation has the potential to make life-saving medications more accessible to people in need, particularly in developing countries where access to healthcare is limited.However, it is crucial to acknowledge the ethical and environmental considerations surrounding genetic engineering. The potential for abuse, such as creatinggenetically modified organisms (GMOs) that pose a threat to biodiversity or human health, must be carefully managed. Additionally, the social implications of genetic engineering, such as the ownership and use of genetic information, must be addressed to ensure that the benefits of this technology are distributed fairly and responsibly.In conclusion, genetic engineering offers a remarkable array of benefits that have the potential to transform our world. From improving crop yields and nutritional value to revolutionizing healthcare and pharmaceutical production, the applications of this technology are vast and far-reaching. However, it is imperative that we approach genetic engineering with caution and responsibility, ensuring that its benefits are maximized while minimizing any potential risks. By doing so, we can harness the power of genetic engineering to create a healthier, more sustainable future for all.。

基因工程的好处和风险英语作文英文回答：Benefits of Genetic Engineering.Genetic engineering has the potential to provide numerous benefits for society. One of the most significant benefits is its ability to improve human health by curing or preventing diseases. For example, genetic engineering has been used to develop treatments for conditions such as cancer, cystic fibrosis, and sickle cell anemia. It has also led to the development of vaccines for diseases such as polio and measles.Another benefit of genetic engineering is its potential to improve agricultural productivity. Genetically modified crops can be engineered to be resistant to pests and diseases, which can reduce the need for pesticides and herbicides. This can lead to increased crop yields and reduced environmental impact. Genetic engineering can alsobe used to improve the nutritional value of crops, making them more beneficial for human health.In addition to its potential benefits for human health and agriculture, genetic engineering can also be used to create new products and materials. For example, genetically engineered bacteria can be used to produce biofuels, which are a renewable source of energy. Genetically engineered materials can also be used to create products such as stronger and lighter plastics, and more durable fabrics.Risks of Genetic Engineering.While genetic engineering has the potential to provide numerous benefits, there are also some potential risks associated with its use. One of the main concerns is the potential for unintended consequences. For example, genetically modified crops could potentially harm other organisms in the environment, such as insects or birds. There is also the potential for genetically modified organisms to escape from the laboratory and contaminate the natural environment.Another concern about genetic engineering is the potential for it to exacerbate existing social inequalities. For example, if genetically modified crops are more expensive than traditional crops, they could potentially make it more difficult for people in developing countriesto access food. There is also the potential for genetic engineering to be used to develop weapons or to create designer babies.It is important to weigh the potential benefits andrisks of genetic engineering carefully before making any decisions about its use. There is no doubt that genetic engineering has the potential to provide significantbenefits for society, but it is also important to be awareof the potential risks.中文回答：基因工程的好处。