初中科普英语竞赛(辅导讲义一)

1、上次课后巩固作业复习；2、互动探索此环节设计时间在15分钟。

教学建议：此环节设计时间在15分钟。

1.通过以下图片与学生进行互动，问学生有没有了解过与图片相关的知识，可让学生与学生之间互相分享（用英文），并给出下列词汇作为参考，引出本次课的主题—阅读理解科普篇。

2.引导学生熟悉一些常见的科普类阅读的高频词。

US researchers have uncovered traces of an ancient lake on Mars The only known frogspecies that cancommunicate usingpurely ultrasonic callsIn a study of elderlymen and women，thosewho had moreeducation actually hadmore brain shrinkage．Look at the pictures above, do you want to know more?Keys：文章大意：本文是一篇科技文，主要介绍了美国在农业方面临农民人数少，年龄偏大的问题，同时还缺少专业大学生从事农业生产。

该怎么样解决这个问题。

1. A。

细节理解题。

根据第一段第三句“The country’s farmers a re getting older, and there are fewer people standing in line to take their place”可知，A项正确。

2. D。

细节理解题。

根据第二段第一句中“…is making stops at universities across the country in hopes of encouraging more students to think about careers in agriculture”可知，D项正确。

3. C。

第八届初中科普英语竞赛试题第八届初中科普英语竞赛第八届初中科普英语竞赛:笔试部分(90分).单项选择。

(19分)( )1.—They are thirsty . Will you please give them ?-----Certainly.A. some bottle of orangeB. some bottles of orangesC. some bottle of orangesD. some bottles of orange( )2. The chi ldren won’t go on a picnic if it next SundayA. rainB. rainedC. rainsD. will rain( )3. It’s summer now. The farmers are busy the summer harvest .A. get ready forB. to get ready forC. getting ready forD. getting ready to( )4. Few people at home at weekend .A. likes to stayB. like stayC. like stayingD. like staying( )5. Is there any more in the room ?A. peopleB. booksC. sheepD. room( )6. The children go to bed until their mother comes back .A. willB. won’tC. didn’tD. around( )7. I told him the basket under the tree, but he didn’t listen .A. don’t putB. didn’t putC. mot putD. mot to put( )8. I don’t know when his hometown .A. he leftB. is he leavingC. he leaveD. does he leave( )9. Can you it in English ?A. speakB. sayC. talkD. tell( )10. After they had worked for the hours they stopped a rest . 第 1 页共 16 页第八届初中科普英语竞赛A. havingB. haveC. to haveD. had( )11. Lets go home . Its late .A. getB. gotC. gettingD. gets( )12. The baby can walk by himself now .A. aloneB. lonelyC. gettingD. to home( )13. did the operation take ?A. What timeB. How oftenC. How farD. How ling( )14. Who helped to carry the boxes ?We did it .A. yourselvesB. us ,yourselvesC. you , ourselvesD. us , ourself( )15. who feels ,Mr More or Mr Less ?A. happierB. happilyC. happilierD. more happily( )16. I hear Mike had a fall the ice .A. offB. inC. onD. to( )17. They found the picnic basket was under the tree .A. no longerB. longer thanC. not longerD. no than( )18. Lin Fen turned the light and went out .A. inB. onC. offD. down( )19. The old man doesn’t have money .A. manyB. muchC. someD. a lot.完形填空。

初中学生科普英语竞赛（请把你选中的答案A、B、C或D做在答题卡或答题纸的规定位置上。

）PART I Science Knowledge (15分)Directions: There is only one correct answer. Mark the corresponding letter on the Answer Sheet.1.When the ants are first hatched, they are very small and _____.A. hopelessB. uselessC. helplessD. legless2.That new experiment building _____ an area of 5000 square meters.A. includesB. holdsC. takesD. covers3.People should get _____ of sleep as they need to feel rested.A. as many hoursB. as much hoursC. so much hourD. so many hour4.The phenomenon of luck is not all down to chance, but is affected by a person’s_____disposition.A. generalB. gentleC. generousD. giant5.The age of fossils can be found by a process _____ carbon dating.A. being calledB. calledC. callingD. to call6.Suddenly the battery on your mobile phone has _____, you can’t make any call for help.A. run downB. run afterC. run offD. run out7.When a plant or animal dies, the carbon 14 in the cells begins to _____.A. break inB. break throughC. break upD. break down8.There is no proof that _____ sleep will _____ life.A. short… lengthB. shorten… lengthC. shortened … lengthenD. shortening … lengthen9.The project team believes such computer would _____in teaching and learning.A. play a major functionB. perform a main functionC. play a major roleD. display a main role10.Once a heart disease has seriously weakened a patient’s heart, heart _____ can beperformed to save his life.A. transplantsB. transportationC. translationsD. transforms11.When readers were asked _____ animals should be used for medical research, nearly80 percent said yes.A. whichB. whatC. whereD. whether12.Feelings of pain _____ when signals from nerve endings in the skin are sent to thebrain.A. recordB. resourceC. resultD. rescue13.The scientist performed his experiment over and over again, ______ till midnight.A. workedB. workingC. to workD. have to work14.Fourteen boys in the class shaved their heads after learning that their friend would losehis hair after receiving drug _____ for cancer.A. tradesB. treatmentsC. treasuresD. tracks15.The government passed the laws to protect the plants and animals on the _____ specieslist.A. endangeredB. dangerousC. endangeringD. danger PART II Grammar & Vocabulary (15分)Directions: There is only one correct answer for each sentence. Mark the corresponding letter on the Answer Sheet.16. More and more foreigners want to _______their companies in Zhejiang.A. clean upB. look upC. pick upD. open up17. Can I ______your dictionary? --Sony, I'm using it.A. borrowB. lendC. keepD. return18. _______ me carefully, boys and girls. Can you _____ me clearly.9A. Listen to, hear fromB. Hear, listen toC. Hear, hearD. Listen to, hear19. Let the children go away. They're making to much _______ here.A. noiseB. voiceC. soundsD. songs20. The students put down their pens when the teacher_____ them to stop writing.A. saidB. spokeC. toldD. talked21. He ________ living in the country to the city.A. likesB. prefersC. enjoysD. loves22. Many girls like __________ skirts in summer.A. wearingB. dressingC. inD. putting on23 If you don' t know a word, you can ________ the word in a dictionary.A. look upB. look downC. look overD. look out24 Mr Li would like to _________ us an interesting story.A. tellB. talkC. sayD. speak25. _________ alway the old books and __________ me that new one.A. Bring, bringB. Bring, takeC. Take, takeD. Take, bring26. -- I' m going to school now, Mum, Bye.-- Just a minute. It's cold outside, _________ your coat, please.A. Put onB. Take offC. Put upD. Take down27. It is better to teach a man to fish than ________ him fish.A. to giveB. givingC. to findD. finding28. This TV set is too loud, will you please _________?A. turn down itB. turn it downC. to turn it downD. to turn down it29. It will be warmer tomorrow. The temperature will _________ again.A. fall belowB. go upC. stay aboveD. keep on30. Dick isn't here. He _________ the cinema.A. has gone toB. has been toC. has been awayD. has been withPART III Cloze (完形填空) (20 分)Passage 1A new study has shown that mosquitoes can carry AIDS viruses in their bodies for a few days, but the insects do not seem to spread the virus.In an 31 , mosquitoes that fed on blood 32 with the AIDS virus were later found to have the virus in their bodies. 33 , the mosquitoes did not seem to pass 34 the virus to a sample of uninfected blood when the mosquitoes fed on that sample. Similar experiments 35 recently in South Africa have 36 the same results.The AIDS virus can stay in a mosquito for two or three days, 37 to the experiment. While in the mosquito, the virus does not multiply. Thus, the mosquito might be viewed 38 a momentary flying syringe, that probably carries 39 too little AIDS virus to 40 the infection.31. A. experience B. experiment C. example D. explanation32. A. to infect B. infect C. infecting D. infected33. A. However B. Moreover C. Therefore D. Besides34. A. on B. by C. off D. for35. A. concluded B. combined C. conducted D. concentrated36. A. processed B. produced C. progressed D. promoted37. A. according B. due C. owing D. similar38. A. to B. like C. for D. as39. A. still B. even C. far D. much40. A. slow B. spread C. speed D. stopPassage 2All the useful energy at the surface of the earth comes from the activity of the sun. The sun heats and 41 mankind. Each year it provides men 42 two hundred million tons of grain and nearly ten million tons of wood.Coal, oil, 43 gas, and all other fuels are stored-up energy 44 the sun. Some was collected by this season’s plants as carbon compounds (碳化合物). Some was stored by plants and trees ages 45 .Even waterpower comes from the sun. Water 46 into vapor by the sun falls as rain. It flows down the mountains and is converted to electric power.Light transmits only the energy 47 comes from the sun’s outer layers, and 48 of this energy that is directly toward the earth never arrives. About 49 of it is absorbed by the atmosphere of the earth. 50 , the earth itself gets only one half-billionth of the sun’s entire output of radiant energy.41. A. warms B. feeds C. fuels D. supplies42. A. for B. by C. with D. to43. A. native B. neat C. natural D. normal44. A. from B. by C. at D. in45. A. before B. after C. ever D. ago46. A. turned B. was turned C. turning D. turns47. A. and B. that C. when D. where48. A. a number B. more C. many D. much49. A. ninths-ten B. ninth-tens C. nine-tenths D. nines-tenth50. A. In use B. In fact C. In addition D. In operationPART IV Reading Comprehension (阅读理解) (40分)Passage 1Language isn’t the only sign of animal intelligence. A Canadian psychologist, Dr. David Sherry, has studied the remarkable memory of nutcracker, a bird that stores food，mostly pine seeds, in tiny caches, or holes, in the ground. A native of western North America, one nutcracker makes 100 to 200 separate caches every day in the fall and winter. When spring arrives, the bird returns to these caches to eat the seeds.Dr. Sherry says that months after burying the seeds, the birds remember exactly where th ey stored them. They fly directly to the holes with no need to hunt and peck. “These birds have a highly specialized spatial memory --- it’s amazing,” says Dr. Sherry.Dr. Sherry says that memory in many animals is associated with an area in the brain called the hippocampus. He found that food-storing birds have a larger hippocampus than birds that don’t store food. Hippocampus damage is one sign of Alzheimer’s disease, a brain degenerative disease marked by a failing memory.51.What does the passage mainly discuss?A. Some kinds of birds have excellent memory.B. How birds store food in the ground.C. How birds find their stored food.D.Why birds like to bury seeds in the ground.52.Nutcracker is a kind of bird that _____.A. stores seeds in the groundB. sings very nicelyC.flies to north in winter daysD.works diligently53.When spring arrives, the bird _____.A. returns from northB. flies back to find the stored foodC. starts to build its new homeD. becomes busy in collecting seeds54.According to Dr. Sherry, if one’s hippocampus is hurt, he may_____ .A. lose his ability to talkB. become very forgetfulC. die very soonD.become easy to get angry55.The phrase “associated with” in the last paragraph has the same meaning as_____?A. “linked to”B. “covered with”C. “located at”D. “stored in”Passage 2Gordon was a 25-year-old science teacher in 1966 when he bought a brand-new car V olvo P1800. Today, Gordon, now retired, still owns the same V olvo. Last March, he put the 2 millionth mile on the car.Gordon’s vehicle hit the big 2 million at a TV ceremony held in Times Square in New York City.To what does Gordon owe his car’s very long life?“V olvos are very strong cars,” he said. “Also, I drive sensibly. And I take very good care of the car.”Gordon changes the oil every 3,000 miles; uses only the same brand of oil; changes the spark plugs（火花塞）every 20,000 miles; washes the car regularly; waxes it at least twice a year; and spends a few minutes each week checking under the hood (车篷), among other things.“Being a science teacher, I have a better idea of the ways things work,”he said.Gordon says the vehicle still has many of its original parts. But many parts, such as the starter motor, the brakes（刹车）, and the water pump, have been rebuilt or replaced.Gordon’s 2 million miles on the road have taken him almost everywhere in the United States, as well as to Canada, Mexico, and Europe. “Whether I drive 3 million is more up to me than it is the car,” he said. “The car’s parts may be able to take it, but I’m not so sure about my own.”56.From the passage we can guess that _____.A. it’s very rare for a car to drive two million milesB. the story has been written to introduce a new carC. there were a car show at the New York City’s Times SquareD. no accid ents have ever taken place with Gordon’s car67. The main cause of the car’s long life lies in _____.A. Gordon’s careful serviceB. Gordon’s special knowledge of carsC. the excellent quality of the carD. the good quality of the oil he uses68. Which of the following statements is TRUE according to the passage?A. All the parts of Gordon’s car have been replaced.B. Some of the car’s parts can last even longer time.C. V olvo cars are stronger than Japanese ones.D. Science teachers can usually keep their cars longer.69. Gordon has driven his V olvo _____.A. all over the worldB. both home and abroadC. mostly around the town he lives inD. on both American continents70. By the last two sentences Gordon wants to say that _____.A. he’s no longer as strong as he was youngB. his car may survive for no less than ten yearsC. he worries much about his carD. he’ll try hard to reach the goal of 3 million milesPassage 3Last summer, 16-year-old Andrea Axtell read an interesting article in the papers: A family had walked aimlessly in an Arizona desert after their car broke down. Family members said they felt as if they’d walked in circles for hours before help arrived. That detail attracted Andrea’s interest. “Wit hout a compass or specific landmarks, do people who get lost end up walking in circles?” she wondered. “And if they do, why?”These simple questions fueled Andrea’s 10th-grade science project. Hungry for answers, she went to the library to conduct background research. Among many facts, she discovered that several body organs control direction and movement. For example:⏹Eyes allow people to see their route.⏹Structures in the middle ear affect a person’s sense of balance.⏹The brain controls whether a person’s right side or left side is dominant（主导的）,or exerts more control.“Studies of runners’ strides（步态）show that the dominant foot pushes off with a greater force, which pushes the runner slightly right or left,” she explains.Armed with this information, Andrea started an experiment to test whether people who don’t know where they’re going end up walking in circles. And several months later, that experiment got a prize at the Intel International Science and Engineering Fair（ISEF）!71. The aim of Andrea’s research is to find _____.A.why people walk in circlesB.why runners usually run in circlesC.whether lost people walk in circlesD.how can lost people find their place72. From where did Andrea get her idea to do her 10-grade science project?A.From her textbook.B.From a news report.C.From a science report.D.From an experiment.73. Andrea found from her research that the most important organ controlling direction is_____.A.the brainB.the middle earC.the eyesD.Both eyes and middle ear74. Andrea’s research concludes that people who don’t know where they’re going are in thehabit of walking _____.A.leftwardsB.rightwardsC.either left or rightD.neither left nor right75. Which of the following statements is TRUE according to the passage?A.If you are lost in a desert, you’d better stay where you are.B.One’s middle ear is the only organ to keep him in balance.C.Lost people can hardly find their way without a compass.D.The force made by one’s two feet is different when one walks.Passage 4Tears are nature’s way of making us feel more comfortable. When our eyes are made uncomfortable by some small pieces of pollution, or when we are cutting onions, or when we are tired and “red-eyes” from overwork a t late hours, tears form in our eyes to clean and refresh them.Tears are also a sign of strong emotion. We cry when we are sad and we cry when we are happy.And tears seem to be unique to human. We know that animals also experience emotion—fear, pleasure, loneliness—but they do not shed tears. From this we can conclude that tears are closely related to the emotional and biological make-up of the human species.Biologically speaking, tears are actually drops of a slightly salty fluid, produced by a gland（腺）in the body.Because salt is an important component（成分）, tears may actually make up the most conclusive evidence that the human animal is the end product of a long evolutionary（进化的）process that began in the sea.And it is clear, that, in addition to the emotional benefits, the shedding of tears has a specific biological function as well. Through tears, we can eliminate from our body certain chemicals which build up in response to stress and create a chemical imbalance in the body. Crying actually makes us feel better by correcting that imbalance and making us feel good again. And thus the emotional and the biological functions of tears mix into one and make us even more “human” than we would otherwise be.76. According to the passage, human beings may have first formed in .A. the seaB. lakesC. riversD. mountains77. Which of the following functions have nothing to do with tears?A. Biological functionB. Emotional functionC. Physical functionD.Chemical function78. According to the article, which of the following is unique to humans?A. The feeling of loneliness.B. The ability of evolution.C. The ability to shed tears.D. The feeling of fear.79. The word “eliminate” in the last paragraph most probably means .A. escapeB. produceC. replaceD. remove80. Which of the following is the main idea of the passage?A. Tears are a sign of strong emotion.B. Tears are always making us feel more comfortable.C. Tears are unique to human.D. Tears have certain biological function.。

初中英语科普版八年级下册Unit7公开课优质课教案比赛讲课获奖教案初中英语科普版八年级下册Unit7《Topic1 We're preparing for a food festival.SectionA》公开课优质课教案比赛讲课获奖教案1教学目标1. Talk about ways to make money:wash dishes,sell old storybooks,sell newspapers,wash cars2. Learn the object clauses:(1)What do you think the children should prepare for the food festival?(2)What do you think you can do to make money?(3)I think (that) I can sell newspapers.2学情分析学生基础较差,接受能力不够强。

3重点难点教学重点1. Cultivate the students to have the noble character of willing to helpothers.2. Talk about how to make money.3. Talk about how to prepare for the food festival.教学难点Learn the object clauses:(1)What do you think the children should prepare for the food festival?(2)What do you think you can do to make money?(3)I think (that) I can sell newspapers.4教学过程4.1第一学时4.1.1教学活动活动1【讲授】教学设计教学情景导入1.(呈现丹尼尔的图片在黑板上,向学生介绍他的基本情况。