A healthy dose of sunshine may be the secret to staying young, British scientists have disclosed.

Vitamin D is produced naturally by the skin in response to 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 are easy to have 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 prove 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."

He said further studies are required to confirm the findings.

Professor Tim Spector, head of KCL's twin research unit, and a co-author of the report, added: "Although it might sound absurd(荒谬的), 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 per cent of the body's supply, but lower levels can also be obtained through food such as fish, eggs and breakfast cereals.

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

1.What’s the best title of this passage?

  A.Sunshine helps to keep you young.

  B.Vitamin D has a protective effect on many diseases.

  C.Telomeres - a biological marker of ageing.

  D.People have found the secret to having a long life.

2.How can people get Vitamin D?

A.through water.       B. through sunshine.

C.through food.        D.both B and C.

3.Which of the following is not true according to the passage?

    A.women with high levels of vitamin D shows a sign of being biologically younger and healthier.

    B.vitamin D has a protective effect on many ageing related diseases.

    C.too much sunshine may increase our risk of skin cancer.

    D.It has been proved that sunshine helps to keep you young.

    认真阅读下列短文，根据所读内容在文章中的表格中填入恰当的序号。注意：表格中的每个空格只填一个词。

    Directions : Read the following text and choose the most suitable heading from A---E for each paragraph.

A. Social background for the Development of Adult Education

B. What is the present situation?

C. The purposes in Adult Education

D. Ways of Adult Education

E. The history of Adult Education

F. What is Adult Education?

1.

Voluntary learning in organized courses by mature men and women is called adult education. Such education is offered to make people able to enlarge and interpret their experience as adults. Adults may want to study something which they missed in earlier schooling, get new skills or job training, find out about new technological development, seek better self-understanding, or develop new talents and skills.

2.

   This kind of education may be in the form of self-study with proper guidance through the use of libraries, correspondence(函授)courses,or broadcasting.It may also be acquired collectively in schools and colleges, study groups, workshops, clubs, and professional associations.

3.

Modern adult education for large numbers of people started in the 18th and 19th centuries with the rise of the Industrial Revolution. Great economic and social changes were taking place: people were moving from rural areas to cities: new types of work were being created in an expanding factory system. These and other factors produced a need for further education and reeducation of adults.

4.

The earliest program of organized adult education arose in Great Britain in the 1790s, with the founding of an adult school at Nottingham and a mechanics’institute at Glasgow. The earliest adult education institution in the United States was founded by Benjamin Franklin and some friends in Philadelphia in 1727.

5.

People recognize that continued learning is necessary for most forms of employment today. For example, parts of the adult population in many countries find it necessary to take part in retraining programs at work or even to learn completely new jobs. Adult education programs are springing up constantly to meet these and other needs.                                    

1.He took a very ______(科学)approach to management.

2.Can you telephone me at your _______(方便)to arrange a meeting?

3.She was not very ______ (乐观) about the outcome of the talks. 

4.Industrial development is being ______ ( 集中) in the west of the country.

5.The leaves of certain trees are _____(有毒) to cattle.

6.I only had time to ______(瞥一眼) at the newspapers.

7.She talks _______(没完没了)about her problems.

8.He took out a pack of _________(香烟) and handed it to me.

9.The cat stayed well out of _______(范围) of the children.  

10.All flights have been________ (取消)because of bad weather. 

文中共有10处语言错误，每句中最多两处。错误涉及一个单词的增加、删除或修改。

增加：在此处加一个漏字符号(∧)，并在其下面写出修改的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，并在其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（从十一处起）不计分。

In order to realize his dream, Bill Gates, richest man in the world, gave up studying in Harvard University, that is the most famous in the world. He set up a company and researching the computer software. As an old saying go, “Interest is the best teacher.” I quite agree with this idea. I began to be crazy about English when I was a little girl. I got extreme interested in foreign cultures or customs. To meet me curiosity, I read in English stories every day. It seemed to be the best “meal” of a day. As a result, I always did very well in English exam. Interest is the key of success.

假设你将作为新华中学高三毕业生代表，请根据以下要点在毕业晚会上用英文作一个告别演讲:

1.感谢家人，朋友和老师。特别举例感谢某个老师（不用真名，一律使用Mr. Zheng, 并写出原因。

2.回顾高中三年的生活。列举出你印象深刻的活动。

3.展望未来。

注意：开头与结尾已经给出，所写部分120字左右。

    Dear teachers, families and graduates, welcome and thank you for joining us tonight at Xinhua High School graduation ceremony for the Class of 2010! 

Finally, best wishes to the Class of 2010. Thank you very much.

 My sister, as well as her classmates who_____ late for class, _____criticized by Mr. Hunt.

   A. were; was        B. was; were     C. was; was      D. were; were

 – _______ that made Mrs. White so upset?

   – Her son’s making trouble in the school.

   A. Where was it     B. Why was it     C. How was it    D. What was it

 Most Irish people go to ______ church every Sunday and ______ church plays ______ important part in their life.

A. /; the; /          B. /; the; an       C. the; /; a       D. /; a; the   

 He was asked to _______the facts just as he remembered them.

   A. set down        B. set out         C. set up        D. set about 

 It is requested that each of the teachers invited ______ a performance at the. party.

   A. should give      B. will give       C. has to give     D. must give