Unit 3 Genetics ABC
Part III
A
Questions:
1. What are the two functions of DNA?
a. protein synthesis
b. maintain constant/genetic information
2. How does DNA perform the first function mentioned in the passage? Complete the chart below. DNA molecule (makes) RNA
leaves the nucleus
read instructions in the ribosomes
form proteins
3. How does DNA perform the second function mentioned in the passage?
duplication/in cellular division
Why do we have different colors of skin, hair and eyes? Why do beings so different from one another exist? DNA or deoxyribonucleic acid, a molecule found in the nucleus of all cells is responsible for this tremendous variety. George Mendel was the first person to investigate genetic inheritance. He deduced that characteristics are inherited through physical units which he called genes. Nowadays we know that all cells contain chromosomes which are made up of DNA molecules. Sugars and phosphates form the backbone of each chain and they are united through their basis in a determined fashion. These two chains curl around themselves forming a double spiral. DNA has a specific role to play in the cell, that of protein synthesis. To make it, the DNA molecule makes an almost exact copy of itself called RNA. The copy leaves the nucleus and reads the instructions in the ribosomes. It's here where proteins, so essential to living beings, are formed, since they are responsible for controlling the many chemical reactions which keep us alive. The other important mission of DNA is maintaining constant the genetic information of the species during thousands of years through its duplication during cellular division.
C
1. How many men in Britain snore?
Six percent of all men.
2. How many men in Britain suffer from sleep apnoea?
Two percent of all men.
3, What are the symptoms of those people who suffer from sleep apnoea?
a. They snore loudly.
b. They can stop breathing for more than ten seconds as much as ten times an hour.
4. What may sleep apnoea lead to?
a. Disturbed sleep.
b. A risk of depression.
c. The danger of falling asleep while driving.
5. What might cause sleep apnoea?
a. Having a short jaw.
b. Being overweight.
c. Some genetic element
Doctors in Britain think they may have discovered why some people snore when sleeping. Based on a study of eight families, in which one or more members have a serious snoring problem, the doctors say that snoring could be genetically inherited. If that theory is correct, it could explain why some people suffer more than others from the condition.
It's estimated that six percent of all men in Britain snore but two percent suffer from what's known as sleep apnoea. Those with the condition snore very loudly and can stop breathing for more than ten seconds as much as ten times an hour. Sufferers are often unaware of their condition, but it does lead to disturbed sleep, a risk of depression and even the danger of falling asleep while driving.
It's thought it could be caused by having either a short jaw or by being overweight. But doctors of the Royal Halemshire Hospital in Sheffield believe there may be a genetic element. They are studying eight families where one or more members have the condition. So far they've found evidence that sleep apnoea can run in families. The next step is for blood samples to be taken to determine if a gene is involved. If it is, it could help diagnose people with the condition earlier.
Kindergarten: a school or class for young children, usually four to six years old, that prepares them for Nursery school: a school for very young children, usually 3 to 5 years of age Coo: speak gently and lovely wedding: the act or ceremony of becoming married Bride: a woman who has just been married or is about to be married relationship: Pick up: stop for and take or bring(person) along with one a romantic or sexual involvement Stability: steadiness, the state of being not likely to separate, break down or fall apart Discipline: strict control to enforce obedience; punishment / control, train, punish Lenient: merciful, not severe in disciplining, punishing, judging, ect. Spare the rod, spoil the child: a child who is not punished will become undisciplined and unruly. Harsh: unpleasant, unkind, cruel or more severe than is necessary Foldaway: that can be folded together for easy storage.Detached: not connected, separate Blind: anything that keeps out light, as a window shade or shutter. Estate: landed property; individually owned piece of land containing a residence. Sink:any of various basins, as in a kitchen or laundry, connected with a drainpipe and usually, with Appliance: a device or machine for performing a specific task, esp. one that is worked mechanically Property: a building or area of land, or both together Mortgage: an agreement that allows you to borrow money from or similar organization, Tenant: a person who pays rent for the use of land or a building Counselor: someone who is paid to listen to people’s problems and provide support and advice. Make the grade: succeed; reach the necessary standard quit: stop (doing something) and leave Goody-goody: a person who likes to appear faultless in behavior so as to please others, not because Emblazon: decorate something with a design, a symbol or words so that people will notice it easily Go to pieces: lose the ability to think or act clearly because of fear, sorrow, ect. Potter about: do things or move without hurrying, especially when you are doing something that Plough through: make slow progress through something difficult or boring especially a book Small hours: the early morning hours just after midnight.Regulate: make work at a certain speed Well-rounded: complete; well-planned for proper balance Abstruse:deep; hard to understand Compulsory: required; obligatory; that must be done Be cut out for: be fitted for; be suited for Burn one’s bridges: destroy all means of going back, so that one must go forward Segregation: separation; isolation; the policy or practice of compelling racial groups or people of Dispel: scatter or drive away; cause to disappear Cohort: a group of people who share a common feature or aspect of behavior High-flyer: a person who has the desire and the ability to be very successful in their job or their Flunk: fail to reach the required standard in (an exam, test, or course of study) Career: the general course of a person’s working life. Client: a person who buys goods or services Personnel: the department of a company or organization that deals with its employees when they need Make a fortune: earn a great amount of money, possessions, etc. Torture: severe pain or suffering caused in the mind or body Shift: a group of workers who take turns with one or more other groups Teamwork: the ability of a group of people to work together effectively Survey: a general examination or study (of conditions, opinions, etc.), especially carried out by Cross-section: a part or group that is typicalor representative of the whole Brainstorming: a way of making a group of people all think about sth at the same time, often in order
' UNIT 3 Section 1 Tactics For Listening Part 1 Phonetics Exercise: Complete the following short dialogue as you listen to the tape. Pay special attention to the weak forms, fink-ups and contractions. Friend: Hi, Linda. I hear you and John got married (1)last month. Linda: Yeah, we did, (smiling) Three weeks (2) ago. Friend: Well. Congratulations! ^ Linda: Thank you. Friend: Did you (3) have a big wedding Linda: No, we got (4) married at City Hall. We didn't want to spend very much because (5) we're saving to buy a house. Friend: Where did you (6) have the reception Linda: Oh~ we (7) did n’t have a reception. We just (8) invited a few friends over for drinks afterwards. Friend: What (9) did you wear' Linda: Just a skirt and blouse Friend: Oh! : Linda: And John wore a (10) jacket and jeans. Friend: Where did you (11) go for your honeymoon Linda: We (12) didn't have a honeymoon. We went back to work the next day Ah, here comes (13) my bus. Friend: Listen. (14) I'd love to help celebrate. Why don't you two (15) come over for a drink next week' Linda: Sure. We'd love to. (16)I’ll talk to John and (17) call you Monday. Friend: Great. See you (18) n ext week. Linda: Bye. ~ PART 2 Listening and Note-taking Bob: Look at that Angela. True-Value are going to sell hi-fi's for pounds, I’m going to buy one. We can save at least 20 pounds. Angela: Yes, and look at the washing machines. They're going to sell some washing machines for 98 95 pounds, go we can save 22 pounds. A washing machine is more important than a hi-fi. Bob: By the way. Angela. Do you know how much money we've got About 200
Unit 1 Under the Same Roof PartⅠ B. 1.picture two 2.picture one 3.picture four 4.picture three C. 1.He’s a cook 2.There are six people in my family 3.She turned twenty in August 4.They live in Tokyo 5.I have two brothers and one sister 6.His name is David 7.She works in a hospital 8.Since 1994 9.Yes,two daughters and one son 10.We met at my best friend’s bi rthday party PartⅡ A. 1.The parents 2.The children 3.Different but equal 4.Women’s 5.You know that you have to work at it to create love 6.Helping people learn to work at their relationships to make their relationship work B. lauthoritarian model:children have no rights permissive era:children are the bosses;they are allowed to do whatever they want to;parents run around behind them third position:parents and children are different but equal women’s movement:women demand a freer choice about who they are and how they can be appreciation for men: (1) being bread-winner and providers for families (2) being more involved with their childre arranged marriage:you have to work at it to create the love marriage out of love:you don’t know how to work at it when it gets tricky,and you are more easily to opt out PartⅢ A. 1.separate 2.Smoking,drinking 3.collecting 4.On the railway
Unit 4 Section One Tactics for Listening Part 1 Phonetics Stress, Intonation and Accent Script Listen to some short conversations. Has the second speaker finished talking? Tick the right box. 1. A: Excuse me. Could you tell me where the secretary’s off ice is, please? B: Yes. It’s up the stairs, then turn left, …↗ 2. A: Excuse me. Can you tell me where the toilets are? B: Yes, they’re at the top of the stairs. ↘ 3. A: What did you do after work yesterday? B: Ah, well, I went for a drink in the pub opposite the carpark. ↘ 4. A: What did you do after work yesterday? B: Oh, I ran into Jane and Tom, …↗ 5. A: Excuse me, can you tell me how the machine works? B: Certainly. Erm, first of all you adjust the height of the stool, and then put four 10-pence pieces there, ... ↗ 6. A: Excuse me, can you tell me how the machine works? B: Yes. You put 30 pence in the slot and take the ticket out here. ↘Key Part 2 Listening and Note-Taking Frog Legs Script A. Listen to some sentences and fill in the blanks with the missing words. 1. Many Asian cultures have included frog legs in their diets for centuries. 2. By 1977 the French government banned commercial hunting of its own amphibians. 3. Indian scientists have describ ed as “disastrous” the rate at which frogs are disappearing from the rice fields and wetlands. 4. The United States imported more than 6.5 million pounds of frozen frog meat each year between 1981 and 1984.
《英语听力教程3》答案与听力材料 UNIT 1 Part I Getting ready A. B. Keys: 1: burning of the forests/tree removal (deforestation)/reduction of the world's rain forests 2: global warming/greenhouse effect/emissions of CO2 Part II The Earth at risk (I) A. Keys: 1. a. More people--------→more firewood----→fewer trees b. More domestic animals------→more plants-----→fewer available plants a, b--→More desert----→move south-----→desrtt expanding south----→no grass 2. Growing crops stabilize soil, without them the top soil just blows away. But if there isn't enough rain the crops don't grow. 3. People try to grow food to support themselves or to create ranches where cattle can be raised, or to get hardwood for export, or to make way for an iron ore mine B. Keys: 1: Sahara Desert 2: North America & most of Europe 3: top soil blowing away 4: tropical forests destruction 5: animal/plant species becoming extinct 6: climate change for the whole world Part III The Earth at risk (II) A. Keys: 1: Trees would hold rainfall in their roots. When forests in the higher up-river have been destroyed, all the rain that falls in the monsoon season flows straight into the river and starts the flooding. 2: He implies that some national governments just consider the results of their policies in the near future, or just think as far ahead as the next election. B. Keys: 1: flooding in Bangladesh 2: Action to be taken 3: population control Part IV More about the topic: The Effects of Global Warming Keys: 1: Warming up of the world 2: Effects of global
英语听力教程第三版(张民伦主编)Unit-8-The-Sound-of-Musi c听力原文
Listen this way听力教程第三册-8 Unit 8 The Sound of Music Part I Getting ready A quiz game show is a type of radio or television programming genre in which contestants, television personalities or celebrities, sometimes as part of a team, play a game which involves answering questions or solving puzzles usually for money and/or prizes. A The following words will appear in this unit. Listen carefully and study the definitions. 1. panel：a group of specialists who give their advice or opinion about something 2. contender：a person who takes part in a competition or tries to win something 3. nomination：the act of suggesting or choosing somebody as a candidate in an election, or for a job or an award 4. cinematography：the art or process of making films 5. score：the music written for a film/movie or play
UNIT 7 Section one Tactics for Listening Part 1 Spot Dictation Meet Your Chiropractor The doctor of chiropractic (D.C.) is a (1) well-recognized member of the health team who (2) considers the human body as a total functioning (3) unit and gives special attention to the spine, (4) muscles, nerves, circulatory and skeletal (5) systems. The chiropractor seeks to (6) relieve pain. The procedures utilized are primarily focused on the (7) spine. The chiropractor is concerned about the spine's relationship to the (8) nerve system, which controls important body functions. The chiropractor knows that a malfunctioning* spinal joint cannot only cause (9) back pain or headaches, it can also (10) interfere with the nerves leading from the spine, thereby (11) affecting other portions of the body. Millions of Americans are chiropractic patients for a wide variety of (12) health disorders. They depend on their chiropractor as their (13) family doctor to help them maintain their health through proper (14) diagnosis, treatment, and referral when (15) necessary. A minimum of six years of college study including internships (16) goes into the making of a chiropractic physician. Many doctors of
Book Three UNIT 1 Section One Part 1 Spot Dictation Houses in the Future Well, I think houses in the future will probably be (1) quite small but I should think they'll be (2) well-insulated so that you don't need so much (3) heating and (4) cooling as you do now, so perhaps very economical (5) to run. Perhaps they will use (6) solar heating, although I don't know, in this country, perhaps we (7) won't be able to do that so much. Yes, I think they'll be full of (8) electronic gadgets: things like very advanced televisions, videos, perhaps videos which take up ... the screen (9) takes up the whole wall. I should think. Yes, you'll have things like (10) garage doors which open automatically when you (11) drive up, perhaps electronic (12) sensors which will (13) recognize you when you, when you come to the front door even. Perhaps (14) architects and designers will be a bit more (15) imaginative about how houses are designed and perhaps with the (16) shortage of space people will think of putting gardens (17) on the roof and, and maybe rooms can be (18) expanded and, and (19) contracted* depending on what you use them for, so perhaps there'll be a bit more (20) flexibility about that.
Unit 3 Talking about People Section 1 Tactics for Listening Part 1 Phonetics A. Listen and repeat 1. A: Where were you at one o’clock? B: At one o’clock? At my mother’s. 2. A: Let’s ask him to let us go. B: He won’t let us go. 3. A: I saw them together. B: Where did you see them? B. Complete the following short dialogue as you listen to the tape. Pay special attention to the weak forms, link-ups and contractions. Friend: Hi, Linda. I hear you and John got married (l) last month. Linda: Yeah, we did, (smiling) Three weeks (2) ago. Friend: Well, congratulations! Linda: Thank you. Friend: Did you (3) have a big wedding? Linda: No, we got (4) married at City Hall. We didn’t want to spend very much because (5) we’re saving to buy a house. Friend: Where did you (6) have the reception? Linda: Oh- we (7) didn’t have a reception. We just (8) invited a few friends over for drinks afterwards. Friend: What (9) did you wear? Linda: Just a skirt and blouse. Friend: Oh! Linda: And John wore a (10) jacket and jeans. Friend: Where did you (11) go for your honeymoon? Linda: We (12) didn’t have a honeymoon. We went back to work the next day. Ah, here comes (13) my bus. Friend: Listen. (14) I’d love to help celebrate. Why don’t you two (15) come over for a drink next week? Linda: Sure. We’d love to. (16) I’ll talk to John and (17) call you Monday. Friend: Great. See you (18) next week. Linda: Bye. Part 2 Listening and Note-taking Bob: Look at that, Angela. True-Value is going to sell hi-fi’s for 72.64 pounds. I’m going to buy one. We can save at least 20 pounds.
Unit3 Section One T actics for Listening
Part2 Listening and Note-taking A Territory When we talk about a territory, we mean a defended space. Animals have their territories, which they mark out with their personal scent. The scent is their territorial signal. Human beings have other territorial signals. There are three kinds of human territory, marked by different territorial signals. First, there are the Tribal T erritories, which in modem terms are known as countries. Countries have a number of territorial signals. The borders are often guarded by soldiers and they usually have customs barriers, flags, and signs. Other signals of the tribal territory are uniforms and national anthems. These signals are important, because they warn the visitor that he is entering a foreign country and, while he is there, he must behave like a visitor. Second, there is the Family T erritory, at the center of which is the bedroom. This is usually as far away as possible from the front door. Between the bedroom and the front door are the spaces where visitors are allowed to enter. People behave differently when they're in someone else's house. As soon as they come up the driveway or walk through the front door -- the first signals of family territory -- they are in an area which does not belong to them. They do not feel at home, because it is full of other people's belongings -- from the flowers in the garden to the chairs, tables, carpets, ornaments, and other things in the house. In the same way, when a family goes to the beach or to the park for a picnic, they mark out a small territory with towels, baskets, and other belongings; other families respect this, and try not to sit down right beside them. Finally, there is the Personal T erritory. In public places, people automatically mark out an area of personal space. If a man enters a waiting room and sits at one end of a row of chairs, it is possible to predict where the next man will sit. It won't be next to him or at the other end of the room, but halfway between. In a crowded space like a train, we can't have much personal territory, so we stand looking straight in front of us with blank faces. We don't look at or talk to anyone around us. Exercise A: 1. When we talk about a territory, we mean a defended space. 2. These signals are important, because they warn the visitor that he is entering a foreign country. 3. People behave differently when they're in someone else's house. 4. In public places, people automatically mark out an area of personal space. 5. It won't be next to him or at the other end of the room, but halfway between.
Unit 3 Section One Tactics for Listening Part 1 Phonetics Stress, Intonation and Accent Script Listen to some short conversations and circle the prominent word or words in the sentence. 1. A: Do you want some grapes? B: No, thanks, I don’t like them. 2. A: What do you think of Scotland? B: I’ve never been there. 3. A: My son’s called David. B: How old is he? 4. A: Can I book a table for tonight, please? B: Certainly. How many is it for? A: There’ll be three of them. 5. A: Can you get some cornflakes? B: Do you want a large or small packet? A: A small one. Key 1. A: a. want b. grapes B: a. like b. them 2. A: a. think b. Scotland B: a. been b. there b. David B: a. old b. he 4. A: a. book b. tonight B: a. certainly b. many A: a. three b. them 5. A: a. get b. cornflakes B: a. large or small b. packet A: a. small b. one Part 2 Listening and Note-Taking A Territory Script A. Listen to some sentences and fill in the blanks with the missing words. 1. When we talk about a territory, we mean a defended space. 2. These signals are important, because they warn the visitor that he is entering a foreign country.