题目内容
（请给出正确答案）
You don't have to drive him home. He ______ already.
A．leaves
B．is leaving
C．has left
D．had left
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更多“You don't have to drive him home. He ______ already.A．leavesB．is leavingC．has leftD．had le”相关的问题
听力原文：M: Give me the key to the car. I want to drive home.
W: Don't you think you are drunk already？
What does the woman mean？
A．The man shouldn't drink too much.
B．The man shouldn't drive home.
C．The man does not have a car.
D．The man does not need to go home.
-Excuse me, where is Dr Smith's office？
-________.
A: You can't ask me. I don't know, either.
B; Please don't say so.
C; Sorry, I don't know. But you can ask the man over there.
A．Y
B．N
C．NG
听力原文：M: Good morning, Dr Ellis' Office.
W: This is Mrs Jackson. May I speak to the doctor？
M: Mrs Jaekson. Dr Ellis here. How's that new tooth？
W: Not so good, doctor. That's what I'm calling about. It just doesn't seem to fit right.
M: Well, that's to be expected during the first few days after it has been put in. Have you been leaving it in as I told you？
W: Well, it hurts so much, doctor. Especially when I eat.
M: I understand, Mrs Jackson. It hurts in the beginning, I know. But it's really better to leave it in, except when you clean it, of course.
W: Well, I did at first, doctor, but it hurt so much that I just couldn't stand it any longer.
M: Well, maybe we can set it right a little more.
W: Set it right？
M: Yes, when can you come here？
W: Oh, right away, doctor, if you don't mind.
M: Let me see. Can you get here by 11:00？
W: Oh, yes, doctor, I can make it. Thank you. See you then.
Why did the woman go to the doctor's a few days ago？
A．She had a bad tooth taken out.
B．She had her new tooth examined.
C．She had a false tooth filled in.
As your lab instructor, it is my duty to assist you in setting up your experiments and understanding your results. I will also grade your lab notebooks. But I have an even more basic responsibility: your physical safety. I will insist on proper precautions, such as wearing protective goggles at all times. I also expect you to use common sense: don't wear long scarves that might catch fire; don't smoke; don't taste unknown substances.
Let me reinforce this point with a story. Issac Newton, perhaps the greatest scientist of all ages, lived in a period when the toxic effects of chemicals were less understood than today. He routinely sniffed fumes, tasted chemicals, and used open containers for heating substances. In the early 1690s, he suffered through a period of insomnia, depression, and mental instability. Though his biographers linked this situation to problems in his personal life, researchers now think it was a consequence of his lab procedures; they found abnormally high concentrations of lead, mercury, and other heavy metals in preserved specimens of his hair.
Consequently, we must learn from the past and put safety first.
At what point in the semester does this talk take place？
A．At the beginning.
B．In the middle.
C．Near the end.
D．During the final exam.
The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago. From diary entries and other personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9. 5 hours a night. "The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark." By the 1950s and 1960s, that sleep schedule had been reduced dramatically, to between 7.5 and 8 hours, and most people had to wake to an alarm clock. "People cheat on their sleep, and they don't even realize they're doing it," says Dr David. "They think they're okay because they can get by on 6.5 hours, when they really need 7.5, 8 hours or even more to feel ideally vigorous."
Perhaps the most merciless rubber of sleep, researchers say, is the complexity of the day. When ever pressures from work, family, friends and community mount, many people consider sleep the least expensive item on his programme. "In our society, you're considered dynamic if you say you only need 5.5 hours' sleep. If you've got to get 8.5 hours, people think you lack drive and ambition."
To determine the consequences of sleep deficit, researchers have put subjects through a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier. "We've found that if you're in sleep deficit, performance suffers," says Dr David. "Short-term memory is weakened, as are abilities to make decisions and to concentrate."
People in the 18th and 19th centuries used to sleep about 5 hours a night because they had ______.
A．no drive and ambition
B．no electric lighting
C．the best sleep habits
D．something to do in the evening
听力原文：Nurse: Good morning. Dr Ellis's office.
W: This is Mrs. Jackson. May I please speak with the doctor？
Nurse: The doctor is just busy with a patient. Would you hold on for a minute？ Here is the doctor now, I'll tell him you're on the line.
M: Mrs. Jackson. Dr Ellis here. How's that new bridge？
W: Not so good, doctor. That's what I'm calling about. It just doesn't seem to fit right.
M: Well, that's to be expected during the first few days after it has been put in. Have you been leaving it in as I told you？
W: Well, it hurts so much, doctor, especially when I eat. I keep removing it afterwards, you know.
M: I understand, Mrs. Jackson. It hurts in the beginning, I know. But it would be better to leave it in except when you clean it, of course.
W: Well, I did at first, doctor, but my jaws hurt so much that I just couldn't stand it any longer.
M: Well, maybe we can adjust it a little more.
W: Adjust it？
M: Yes, file it down here and there. When can you come in？
W: Oh, right away, doctor, if you don't mind.
M: Let me see. I'll check with my secretary. Maybe I can find time for you this morning.
W: Oh, I can wait until this afternoon if you're too busy now.
M: Sorry Mrs. Jackson. I'd rather you came this morning if possible. This afternoon I'm teaching a class at the dental school. Just a minute. Mrs. Jackson, can you get here by 11:30？ That will give us enough time before lunch to see what we can do.
W: Oh, yes, doctor. I can make it. Thank you. See you then.
(24)
A．He was operating.
B．He was with a patient.
C．He was talking to his secretary.
D．He was away on vacation.
Boredom can be a good thing for children, according to Dr Teresa Belton, researcher at the University of East Anglia ’s School of Education and Lifelong Learning. After interviewing authors, artists and scientists in Britain, she’s reached the conclusion that cultural expectations that children should be constantly active could block the development of their imagination.
British actress and writer Meera Syal grew up in a small mining village with few distractions. The researcher said:“Lack of things to do urged her to talk to people she wouldn’t otherwise have engaged with and try activities she wouldn ’ under other circumstances, have experienced, such as talking to elderly neighbors and learning to bake cakes.”
Belton added: “Boredom made her write. Meera Syal kept a diary from a young age, filling it with observations, short stories, poems. ”
The researcher didn’t ignore the old saying the devil finds work for idle hands, though. Belton pointed out that young people who don ’t have the interior resources to deal with boredom creatively may end up smashing up bus shelters or taking cars out for a joyride.
How about watching TV and videos on the computer？ The researcher believes that nothing replaces standing and staring at things and observing your surroundings.
It’s the sort of thing thatstimulates the imagination, she said, while the screen “tends to short circuit that process and the development of creative capacity. ” Dr Belton concluded: “For the sake of creativity, perhaps we need to slow down and stay offline from time to time. ”
11. Dr Teresa Belton did her research by_____ .
A.studying cultural differences
B.interviewing professionals
C.keeping a diary
D.observing the surroundings
The expression “the devil finds work for idle hands ” probably means that people are more likely to ？A.do what they should not do if they meet devils
B.achieve nothing if they work with devils
C.do more work if they didn ’t work hard when they were young
D.get involved in trouble if they have nothing to do with their time
Which of the following is the best title for the passage？A.Deal with boredom wisely
B.Learn from a young age
C.Enjoy village life
D.Forget old sayings
What is Dr Belton ’s advice for youngsters ？A.Observe the world around them
B.Get information online from time to time
C.Remain constantly active
D.Read as many books as possible
Which of the following best describes the village where Meera Syal grew up？A.Modern and open
B.Tiny and unexciting
C.Poor and underdevelopment
D.Remote and violent
请帮忙给出每个问题的正确答案和分析，谢谢！
M: Sure Jon. What have you got there？
W: Well, it's some kind of shellfish. I thought is might be a brachiopod, but I am not sure. I found it when I went out hiking last weekend.
M: I think you might be right. It certainly appears to be a brachiopod. But it's easy to confuse them with the bivalve mollusks. Superficially they resemble one another. Both have two shells for example.
W: How can you tell them apart then？
M: Well, there are some minor differences in the shell. A lot of brachiopods have ridge shells like this one. There are other distinctions of course. Internally they are quite different. Mollusks and brachiopods belong to different animal groups, and they have been in competition with one another millions of years ago.
W: How old do you think this one is？
M: It's hard to tell. The earliest brachiopods were from the Paleozoic era, 300 to 500 million years ago. They were quite successful then in terms of number of species. It's not out of the question that your fossil could be that old.
W: Wow, that's amazing. Kind of makes paleontology seem more interesting when you can hold it in your hand.
M: You know that gives me an idea. Would you mind bring this to our next class？ The others might find it interesting too.
W: Well, I could. But if you don't already have one in your collection, I thought you might as well keep it.
M: That's very kind of you.
(31)
A．Ways to determine the age ora fossil
B．The identity of a fossil the woman found
C．A comparison of two shellfish fossils
D．Plans for a field trip to look for fossils
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