A healthy amount of sunshine may be the secret to staying young. British scientists have discovered.Vitamin D is produced naturally by the skin in response to sunlight and may help to slow the ageing 题目和参考答案——青夏教育精英家教网—

题目内容

A healthy amount of sunshine may be the secret to staying young. British scientists have discovered.

Vitamin D is produced naturally by the skin in response to (对…的反应) sunlight and may help to slow the ageing process and protect against heart disease, according to the study.

Researchers from King's College London studied 2,160 women aged between 18 and 79, looking at their telomeres-a biological marker of ageing found in DNA. As people get older, their telomeres get shorter and they become more susceptible (易受伤害的) to certain illnesses.

But the study found women with high levels of vitamin D had comparatively longer telomeres-a sign of being biologically younger and healthier.

The study suggests vitamin D may help to slow down the ageing process of DNA, and therefore the ageing process as a whole.

Lead researcher Dr Brent Richards said, "These results are exciting because they show for the first time that people who have higher levels of vitamin D may age more slowly than people with lower levels of vitamin D." This could help to explain how vitamin D has a protective effect on many ageing related diseases, such as heart disease and cancer."

Professor Tim Spector, a co-author of the report, added, " Although it might sound absurd(荒唐的), it's possible that the same sunshine which may increase our risk of skin cancer may also have a healthy effect on the general ageing process.

Vitamin D made by the action of sunlight on the skin accounts for 90 percent of the body's supply, but lower levels can also be got through food such as fish, eggs and breakfast cereals(粥).

Other studies have suggested the vitamin plays a key role in protecting against cancer and heart disease.

1.A certain amount of sunshine helps people stay young because _________.

A. people feel happy and energetic in the sun

B. vitamin D may help to slow the ageing process

C. sunshine protects people against heart disease

D. vitamin D makes one's skin look young and healthy

2.From Brent Richards, we know that ________.

A. sunlight causes skin cancer to people with high level of vitamin D

B. the study generally has a healthy effect on the general ageing process

C. the higher levels of vitamin D people have, the more slowly people may age

D. vitamin D can only be got from fish, eggs and breakfast cereals

3.What can we infer from the passage?

A. Sunlight does more good than harm to our health.

B. Telomeres are important as they are signs of ageing of the DNA.

C. Sunlight can be dangerous as it causes skin cancer.

D. Vitamin D can also be gained from food.

4.What is the best title of the passage?

A. Secret of Staying Young

B. Sunlight and Vitamin D

C. Vitamin D Helps Slow Ageing

D. Sunlight and Health

练习册系列答案

	A．	am； has forgotten		B．	was； had forgotten
	C．	was； forget		D．	am； will forget

17．He is tiring of all that fat．

14．假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文．文中共有10处语言错误，每句中最多有两处．每处错误仅涉及一个单词的增加、删除或修改．
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词．
删除：把多余的词用斜线（\）划掉．
修改：在错的词下画一横线，并在该词下面写出修改后的词．
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者（从第11处起）不计分．
Dear Tom，
How are you？I am just writing to tell you I had wonderful time at your place in New York．
I arrived home，safely and sound．I have something to ask for you．I have been looking through my bags for my favorite red shirt，or I can't find it somewhere．I'm sure I might have left it at your place．Could you look around your house for it？By the way，I am planning my parents'wedding anniversary celebration．I had already invited you and your parent．I wonder whether you would like to come to Chicago this time．What do you think of it？Take care of you and write to me soon．Giving my regards to Uncle Bernard and Aunt Norah．
Love，
Diana．

There was once a farmer who had a fine olive orchard（橄榄园）. He was very hardworking, and the 36 always prospered（繁荣）under his care. But he knew that his three 37 looked down upon the farm work, and were eager to make wealth.

When the farmer was 38 and felt that he would die, he 39 the three sons to him and said, “My sons, there is a pot of gold 40 in the olive orchard. Dig for it, if you wish it.”

The sons tried to 41 him to tell them in what part of the orchard the 42 was hidden, but he would tell them nothing more.

After the farmer was 43 , the sons went to work to find the pot of gold; since they did not 44 where the hiding-place was, they agreed to begin in a line, at one 45 of the orchard, and to dig until one of them should find the money.

They 46 until they had turned up the 47 from one end of the orchard to the other, 48 the tree-roots and between them. 49 no pot of gold was to be found. It seemed as if someone must have stolen it, or as if the farmer had been wandering in his wits. The three sons were bitterly 50 to have all their work for nothing.

The next olive 51 , the olive trees in the orchard bore（结果实）more fruit than they had 52 given; when it was 53 , it gave the sons a whole pot of gold.

And when they saw how much money had 54 the orchard, they suddenly understood what the wise father had 55 when he said, “There is gold hidden in the orchard. Dig for it, if you wish it.”

1.A．farmB．gardenC．factoryD．hospital

2.A．friendsB．sonsC．relativesD．children

3.A．healthyB．oldC．unluckyD．sad

4.A．showedB．ledC．calledD．visited

5.A．sentB．putC．hiddenD．locked

6.A．wait B．causeC．makeD．get

7.A．goodsB．jewelC．clothesD．gold

8.A．weakB．lost C．deadD．sick

9.A．thinkB．knowC．wonderD．realise

10.A．endB．topC．surface D．bottom

11.A．dugB．searched C．discoveredD．expected

12.A．sandB．soilC．ground D．floor

13.A．overB．amongC．roundD．across

14.A．SinceB．AndC．Before D．But

15.A．disappointedB．surprised C．worried D．sad

16.A．seasonB．partC．distance D．degree

17.A．alreadyB．evenC．everD．still

18.A．made B．soldC．shippedD．saved

19.A．come onB．come aboutC．come upD．come from

20.A．thoughtB．plannedC．guessed D．meant

We're offering free tickets to go and see a film called A Year in Greenland. The film, which 1. (tell) you all about the plants and animals in that wonderful country, has won 2. prize at the national film festival- it's well worth 3.(see).

The film can only be seen at the new cinema that has just been completed inside the Science Museum in the city centre. It's showing this Sunday with 4. (perform) every hour from midday onwards, with the last showing at 5 o’clock, two hours before the museum closes. So there are six times to choose 5. .

So why not take the whole family to the cinema this Sunday. Children will want to head straight down to the basement 6. the computers are kept. I promise you they’ll come away with all sorts of 7.(excite) pictures they’ve created.

Entrance to the museum is free on Sundays, but it would 8. (normal) cost ﹩3.25 to go and see the film. 9. (get）your free tickets, you should e-mail this program by midday on Friday. We've only got a limited number of tickets, so the 10. (early) you e-mail us, the more likely you are to get one.

假定你是李华，你的澳大利亚笔友Mike发来电子邮件，询问最近你市举办的“最美家乡”英语演讲比赛活动的情况。请给他回一封电子邮件，介绍以下该活动。要点如下：

1. 来自全市15所36名学生参加了此次英语演讲比赛；

2. 比赛分为三个环节：英语演讲、回答评委提出的问题和才艺表演；

3. 活动的意义。

注意：1. 词数100左右。2. 可适当增加细节，使行文连贯。

Dear Mike，

On December9, an English speech contest was held in our city.________________________________

_______________________________________________________________________________________

_______________________________________

Yours,

Li Hua

Hotel rooms come in a variety of styles and price ranges. Despite differences m decoration and price, one thing most hotels have in common is a set of rules. Failure to obey these rules can result in fees or fines to cover hotel room damages, removal from the hotel or possibly even arrest.

Smoking

Some hotels are completely non-smoking. Some hotels designate smoking and non-smoking rooms. If you smoke in a non-smoking room, you will likely be fined hundreds of dollars and possibly asked to leave.

Number of Guests

Most regular hotel rooms are designed for two adults. If you have more than two people staying in the room, the hotel will likely charge an additional fee for each extra guest, though some hotels let children stay free. Do not put more than four adults in the room unless the hotels policy permits that many people. Or you might be fined or removed from the hotel

Hotel Reservations Requirements

Most hotels require a major credit card to reserve the room. You can pay cash at the end of your stay, but do not be surprised if there is a temporary charge on your card for a few days after your stay. Most hotels authorize a security deposit on your card to cover any possible damages to the room. Once the hotel confirms that the room is undamaged and that you do not break any hotel policies, your security deposit will be refunded.

Breaking the Law

You cannot break the law in your hotel room, just as you cannot break the law in your own home or in public. Do not do drugs or commit any other criminal act in the hotel room. If you do, you will likely be arrested.

Noise

Most hotels have a noise policy you must obey. If you are being too loud you will usually get a warning. If the noise continues and more complaints are issued, you will likely be kicked out of the hotel, regardless of what time it is.

1.What is the main purpose of this passage?

A. To advertise the hotel rooms B. To show some rules of hotel rooms

C. To warn the customers D. To offer some tips of living in hotel rooms

2.You will NOT be asked to leave the hotel, if you .

A. make too much noise continually B. smoke without permission

C. have one extra guest to stay D. break the law

3.Why is there a temporary charge on your card for a few days after your stay?

A. Because the hotels may use the money to pay for possible damages caused by you.

B. Because the hotels want to confirm whether you have money.

C. Because the hotels need a major credit card to pay for the rent.

D. Because the hotels need to authorize a security deposit.

Having lest something in the cloakroom, I went inside to get it, and found Roy the pockets of people’s coats.

A. going around B. going after C. going against D. going through

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