题目内容

假定你是大庆实验中学的学生李健。最近,学校打算为同学们制作统一的校服,请你给闫校长写一封建议信,要点如下:

1.写信的目的;

2.对校服的布料,款式等提出建议并说明理由。

注意:

1. 词数100左右;

2. 可以适当增加细节,以使行文连贯的;

3. 开头和结尾已为你写好,不计入总词数。

Dear Mr. Yan,

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

Yours sincerely,

Li Jian

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Expensive perfumes (香水) come in tiny bottles, but many hide a whale-sized secret.

To perfect a particular smell, perfume-makers often use an ingredient that comes from sperm whales, called ambergris (龙涎香). But using ambergris, which helps a perfume last longer, is strongly opposed by many people who think it is wrong to kill whales just so we can smell sweet. Joerg Bohlmann is neither a perfumer nor a whale expert. He's a plant biologist at the University of British Columbia in Canada. But his discovery of a new plant gene (基因) might push whales out of the perfume business.

The gene comes from fir trees, found throughout North America and commonly used as Christmas trees. The trees produce a chemical that can be used in perfume in place of ambergris-but with a catch. "There's a problem that many people wouldn't consider. In the tree, the chemical is mixed with many others. That makes separation a challenge," Bohlmann says. "lt's like trying to isolate sugar from a biscuit. "

This is where science becomes useful. When Bohlmann learned that fir trees produce the ambergris-like chemical, he decided to use his gene know-how to find the instructions for how to make the ambergris-substitute.

Bohlmann found that gene and took it out of the tree cells. Then he did something that might sound strange to someone who doesn't work in genetics: Bohlmann put the gene from the tree into yeast (酵母) cells.

Yeast may sound familiar because it's used to make things like bread, wine and beer. Biologists like to work with yeast because it easily adopts new genes and changes its features and behaviour. When Bohlmann put the fir tree gene into the yeast, the yeast started making the same chemical that had been produced by the tree.

Perfumers pay big money for ambergris because it is a fixative, which means it holds a smell in place on a person's body.

"Cheap perfumes smell good in the first hour or so and then everything is gone," explains Bohlmann. "But expensive perfumes are much more stable. Their smell lasts much longer, for hours or even a day after you apply them. "

The new chemical, made from the tree genes, can be used as a fixative, too. And using yeast to make it is far cheaper than acquiring ambergris.

Bohlmann admits he never thought he'd get into the perfume business. But now, he says, producers have been calling to find out how to use his technology in new perfumes.

1. It can be inferred from the passage that if a perfume contains ambergris, .

A. its user probably supports whale hunting

B. it is probably very expensive

C. its smell will last for about an hour

D. there will be a whale symbol on the bottle

2.The underlined expression "with a catch" in Paragraph 3 means____.

A. being difficult to hold

B. being too similar

C. having a hidden problem

D. needing further testing

3. According to the passage, why are yeast cells often used in genetic research?

A. They're much cheaper to use than ambergris.

B. They can reproduce much faster than other cells.

C. They share some of the qualities of plant genes.

D. They can take on the characteristics of other genes.

4.What can we learn about Joerg Bohlmann from the passage?

A. He is opposed to whale hunting.

B. He made his discovery during Christmas.

C. He has worked in the perfume industry for many years.

D. He has previously done genetic research.

One form of social prejudice against older people is the belief that they cannot understand or use modern technology. Activities like playing computer games, going on the Net and downloading MP3s are only for the youngsters. Isn’t it unfair that older people enjoying a computer game should be frowned(皱眉) upon by their children and grandchildren?

Nowadays older people have more control over their lives and they play a full part in society. Moreover, better health care has left more people in their sixties and seventies feeling fit and active after retirement. Mental activity, as well as physical exercise, can contribute to better health. Playing computer games is a very effective way of exercising the brain.

When personal computers were first introduced, most older people didn’t believe they would ever familiarize themselves with it. Now computers have been around for a few generations and retired people have gradually become more relaxed about using them for fun. Gamers over 65 prefer playing puzzle games and card games. Kate Stevens, aged 72, says: “I find it very relaxing. It’s not very demanding, but you still need to concentrate.”

Another development that has favored “grey games” is a change in the type of videogames available on the market. There’s a greater variety of games to choose from, including more intellectual and complex strategy(策略) and simulation(模拟) games. Internet Chess and Train Simulator are among the most popular of these. Train Simulator is based on real-world rail activities. Players can choose from a variety of challenges, such as keeping to a strict-timetable and using helper engines during a winter storm.

Some people argue that “grey gamers” simply don’t have the skills required for computer games, and that teenagers are better. This couldn’t be further from the truth. Most computer games require the kind of analytical thinking that improves with practice, which means that the “grey gamers” may well be far better than gamers half a century younger than them. In games where speed is the main consideration, older people would be at a disadvantage because they may have slower reaction times. On the other hand, “grey gamers” have a preference for slower paced, mind challenging games.

1.The second paragraph is intended to ________.

A. show the best way to exercise the brain

B. stress the importance of good health

C. explain why grey gamers exist

D. teach how to play videogames

2.What was older people’s attitude towards personal computers at first?

A. Doubtful.B. Concerned.C. Enthusiastic.D. Supportive.

3.The method the author uses to develop Paragraph 4 is ________.

A. offering analysesB. giving examples

C. making comparisonsD. providing details

4.By saying “This couldn’t be further from the truth.” in Paragraph 5, the author means ________.

A. mind challenging games are not suitable for older people

B. children should improve their skills with practice

C. playing computer games requires analytical thinking

D. older people can perform well in some computer games

阅读下面短文,从短文后各题所给的四个选项(A、B、C、和D)中,选出可以填入空白处的最佳选项。

Lately I’ve been concerned about the environment. Last weekend I participated in the great Canadian shoreline ________. On that day, my mother and I arrived at 9:30 a.m. More than fifty people ________ and all the volunteers were divided into groups.

The shoreline has four sections with the last two being the most ________ terrain(地形)—steep hills, lots of trees and rocks. We chose section four and after a brief speech from the organizer, we set off. We saw a lot of waste along the way, like newspapers, ropes, bottles, caps, bricks and cigarette ends.

________, we filled almost 30 bags with 160.5 kilos of garbage, including ________ 1,000—1,200 cigarette ends. It was amazing how much we were able to ________. I couldn’t believe the ________ we made — the shoreline looked clean! ________, we had to leave the bricks as they would have broken our garbage and recycling bags! I did find one tire but it ________ so deep in the mud and dirt that I couldn’t dig it out, ________ with the help of one of those metal rods.

________ the waste was easy; it was trying to keep a record of everything we found that was the ________ part. We had a sheet with many categories (种类) of items to ________. It’s great to get all ________ but it wasn’t much fun for the volunteer stuck ________ recording all the information. Our purpose was to make the shoreline ________, not to write lines and lines of what we have discovered.

We often hear some people ________ about their surroundings. If you are one of them, I’d like to say the only way to change things is by ________ rather than complaining. We need to teach by ________. We can’t blame others ________ we start with ourselves. I was very happy to make a small change by cleaning up a little bit of our shoreline.

1.A. cleanupB. tourC. picnicD. camp

2.A. wore outB. showed upC. look aroundD. called back

3.A. interestingB. comfortableC. distantD. difficult

4.A. In doubtB. In additionC. In allD. In advance

5.A. mainlyB. completelyC. approximatelyD. gradually

6.A. requestB. receiveC. accomplishD. afford

7.A. planB. visit C. decisionD. difference

8.A. BesidesB. HoweverC. ThereforeD. Instead

9.A. continuedB. cameC. wentD. looked

10.A. evenB. alsoC. thenD. still

11.A. Throwing awayB. Picking upC. Breaking downD. Digging out

12.A. hardB. similarC. specialD. normal

13.A. rememberB. recordC. findD. request

14.A. workB. picturesC. numbersD. data

15.A. inB. onC. forD. about

16.A. dirtyB. comfortableC. cleanD. careful

17.A. chatB. complainC. discussD. quarrel

18.A. doingB. thinkingC. questioningD. watching

19.A. theoryB. explanationC. exampleD. experience

20.A. althoughB. ifC. whenD. unless

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