题目内容

---Do you know where David is? I couldn’t find him anywhere.

---Well. He ____ have gone far---his coat’s still here.

A. shouldn’t B. mustn’t

C. wouldn’t D. can’t

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根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。（注意：如果选E，请涂AB；选F，涂AC；选G，涂AD）There’s no doubt that when it comes to friendship，you want positive people in your life and not negatives ones．1.Support when you need it·With positive friends，you don’t need to beg for help when you need it because chances are they will be there for you without asking．2.Health benefits of being positive．The more positive friends you have，the better you will be at remaining optimistic yourself．3.For example，it helps people to deal with stress and illness better．Health benefits may include lower rates of depression，a greater ability to throw off colds，and a reduced risk of developing disease．Bring out the best in you．4.This means trying new things，achieving goals，and having the kind of life you dreamed of for yourself．With positive people in your life，you’11 feel more comfortable sharing your goals because your friends will give you the emotional push you need to go after what you want in life．Attracting More Positive FriendsYou naturally attract the kinds of friends who are most like you．So if you’re a downer，you’11 probably find that negative people flock to you．5.The more you are able to maintain a positive attitude，the more likeminded people you’11 attract in return．

A. Here are some benefits of spending time with positive friends．

B. That’s why you’d better surround yourself with positive friends．

C. In most cases，they will go out of their way to help you when you’re in trouble．

D. The same is true for being positive．

E. As we all know，there are many benefits of being optimistic．

F. Your positive friends will inspire you to be the best you can be．

G. Most of the time，you have to ask them to help you when in trouble．

As we know, DNA testing is very useful for crime fighting. But now crime fighters could have a new tool at hand. Researchers have developed a cutting-edge (前沿的) technique to identify human hair. Their test is quicker than DNA analysis techniques currently used by the police.

DNA testing is commonly used for identification because DNA is unique to each individual. However, environmental and chemical processes can degrade(降解) DNA, limiting its usefulness over time. Protein (蛋白质) in hair, on the other hand, is more stable than DNA but can also have variations (变异体) that may be unique to the individual.

“Our analysis process can be used universally, ”says Ms. Huang, “One of our samples even included dyed hair and the test was 100 per cent accurate. The test was able to distinguish East Asians, Caucasians and South Asians.”

Dr. Beauchemin says she has got in touch with law enforcement agencies about using the new technology. She is also planning to collect more hair samples and continue her research with a goal of finding where exactly in the world hair sample is from, to look for more races and determine specific age.

“We are in a very similar place with protein-based identification to where DNA testing was during the early days of development,” said chemist Brad Hart. “This method will be a game-changer, and while we’ve made a lot of progress toward improving it, there are steps to go before this new technique is able to reach its full potential.”

1.What’s the main purpose of the text?

A. To analyze crime scenes.

B. To distinguish different races.

C. To show the usefulness of DNA testing.

D. To introduce a new identification method.

2.Which will be the most useful in identifying a person according to Brad Hart?

A. Chemical materials. B. Protein in hair.

C. DNA variations. D. Blood sample.

3.What’s the advantage of the protein-based identification over DNA testing?

A. Stability. B. Popularity.

C. Security. D. Convenience.

4.What can be inferred from the last paragraph of the text?

A. DNA testing will soon reach its full potential.

B. Protein-based identification remains to be improved.

C. Protein-based identification has replaced DNA testing.

D. DNA testing develops as rapidly as protein-based identification.

The Intelligent Transport team at Newcastle University have turned an electric car into a mobile

laboratory named “Drive LAB” in order to understand the challenges faced by older drivers and to discover where the key stress points are.

Research shows that giving up driving is one of the key reasons for a fall in health and well-being among older people, leading to them becoming more isolated(隔绝) and inactive.

Led by Professor Phil Blythe, the Newcastle team are developing in-vehicle technologies for older drivers which they hope could help them to continue driving into later life.

These include custom-made navigation(导航) tools, night vision systems and intelligent speed adaptations. Phil Blythe explains: “For many older people, particularly those living alone or in the country, driving is important for preserving their independence, giving them the freedom to get out and about without having to rely on others.”

“But we all have to accept that as we get older our reactions slow down and this often results in people avoiding any potentially challenging driving conditions and losing confidence in their driving skills. The result is that people stop driving before they really need to.”

Dr Amy Guo, the leading researcher on the older driver study, explains, “The Drive LAB is helping us to understand what the key stress points and difficulties are for older drivers and how we might use technology to address these problems.

“For example, most of us would expect older drivers always go slower than everyone else but surprisingly, we found that in 30mph zones they struggled to keep at a constant speed and so were more likely to break the speed limit and be at risk of getting fined. We’re looking at the benefits of systems which control their speed as a way of preventing that.

“We hope that our work will help with technological solutions(解决方案)to ensure that older drivers stays after behind the wheel.”

1.What is the purpose of the Drive LAB?

A. To explore new means of transport. B. To design new types of cars.

C. To find out older driver’s problems. D. To teach people traffic rules.

2.Why is driving important for older people according to Phil Blythe?

A. It keeps them independent. B. It helps them save time.

C. It builds up their strength. D. It cures their mental illnesses.

3.What do researchers hope to do for older drivers?

A. Improve their driving skills. B. Develop driver-assist technologies.

C. Provide tips on repairing their cars. D. Organize regular physical checkups.

4.What is the best title for the text?

A. A New Model Electric Car B. A Solution to Traffic Problem

C. Driving Service for Elders D. Keeping Older Drivers on the Road

Some people do some _____work without getting any money in return . These people are called volunteers.

A. valuable B. voluntary

C. vacant D. visible

It was ______ of you not to disturb us.

A. rude B. considerate

C. impolite D. cruel

Choosing to Study Overseas

Every year, thousands of students choose to study in another country for a semester, the summer, or a year. Studying overseas can be an exciting experience for people.

1.

Living in another country can help you to learn a language, and about another culture. You will see the world in a new way, and lean, more about yourself. 2. Many companies today want employees who speak a second language, or have experienced living or working in another country.

3.

Once you decide to study overseas, you have to make some choices. To choose the right country or school, ask yourself: Where do I want to go and why? How much do I want to pay? How long do I want to study overseas? Do I want to live with a host family, with roommates, or alone?

4.

Get your passport and visa (签证) early! Before you go, learn some of the language, and read about some common customs in your host country. Learn about the money. Bring some of it, and a credit card with you.

Once you are there.

After the first few weeks overseas, many students will feel a little homesick. They may miss their family, and familiar ways of doing things. 5. When you feel sad or homesick, try to talk to others, or write about your feelings in a notebook.

A. Get ready to go.

B. Make the right choice.

C. Why do you study overseas?

D. Get quick access to foreign universities.

E. Overseas study may also look good on your future resume (简历).

F. Remember that it takes time to get used to a new place, school, and culture.

G. As a study abroad you will pay tuition fees (学费) to the overseas institution.

Most episodes (片段) of absent-mindedness—forgetting where you left something or wondering why you just entered a room—are caused by a simple lack of attention.” says Schacter. “You’re supposed to remember something, but you haven’t encoded it deeply.”

“Encoding”, Schacter explains, “is a special way of paying attention to an event that has a major effect on remembering it later. Failure to encode properly can create annoying situations. If you put your mobile phone in a pocket, for example, and don’t pay attention to what you did because you’re involved in a conversation, you’ll probably forget that the phone is in the jacket now hanging in your wardrobe (衣柜).” “Your memory itself isn’t failing you,” says Schacter. “Rather, you didn’t give your memory system the information it needed.”

Lack of interest can also lead to absent-mindedness. “A man who can recite sports statistics from 30 years ago,” says Zelinski, “may not remember to drop a letter in the mailbox.” Women have slightly better memories than men, possibly because they pay more attention to their environment. And memory depends on just that.

“Reminders can help prevent absent-mindedness,” says Schacter. “But be sure the reminder is clear and available,” he says. If you want to remember to take medicine with lunch, put it on the kitchen table— don’t leave it in the medicine chest and write yourself a note that you keep in a pocket.

Another common episode of absent-mindedness: walking into a room and wondering why you’re there. Most likely, you were thinking about something else. “Everyone does this from time to time,” says Zelinski. The best thing to do is to return to where you were before entering the room, and you’ll likely remember.

1.Why does the writer think that encoding is important?

A. It helps us understand our memory system better.

B. It enables us to remember something from our memory.

C. It expands our memory ability greatly.

D. It slows down the process of losing our memory.

2.Why can a note in the pocket hardly serve as a reminder?

A. Because it will easily get lost.

B. Because it’s not clear enough for you to read.

C. Because it’s out of your sight.

D. Because it might get mixed up with other things.

3.What do we learn from the last paragraph?

A. If we pay more attention to one thing, we might forget another.

B. Memory depends to a certain extent on the environment.

C. Doing something again helps improve our memory.

D. If we keep forgetting things, we’d better return to where we were.

4.What is the passage mainly about?

A. The process of gradual memory loss.

B. The causes of absent-mindedness.

C. The influence of the environment on memory.

D. A way of encoding and remembering.

You`d better read the______ first before you use the camera.

A. websites B. expressions

C. instructions D. advertisements

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