____ was in 1979____ I graduated from university.

     A. That; that     B. It; that     C. That; when      D. It; when

1.劳驾，请问您这是通往迪斯尼乐园的路吗？。

     Excuse me, it this the path ______________ ________ the Disney Land?

2.部队不久以后将装备最新式的武器。

  The army is to be ______________ ___________the latest weapons before long.

3.律师替我辩护，最终使法官相信我是清白无辜的。

   The lawyer defended me and finally _______________ the judges _________ my innocence.

4.查理卓别林是在1971被授予奥斯卡特别奖，之前他在多部影片中扮演主角。

   It was in 1979 __________ Charlie Chaplin, who had ___________ ________ many films, was given a special Oscar.

5.世界上大多数地方，点头表示赞同，但在一些非洲地区恰恰相反，点头表示反对。

   Nodding means “yes” in most parts in the world.  _______ _______ _____________, it expresses “no” in some African parts.

6.新政府应当不遗余力来消除国家的失业和贫困。

   The new government ______________ _________ spare no efforts to _________ the country _______ its unemployment and poverty.

7.我们的项目没有按计划继续坚持下去，结果以失败告终。

Our project wasn’t ___________ ______ as scheduled and it ended _____ _______________.

________ was in 1979 — I graduated from the university.

A. That, that　　　　　 B. lt, that　　　 C. That, when　　 　　 D. It, when

In 1985, scientists reported a change in the atmosphere, a hole or thinning of ozone（臭氧层）over Antarctica. Scientists were not sure what was causing.

Most scientists believe that man-made chemicals are destroying the ozone. They also have found signs of ozone loss in other parts of the atmosphere.

Ozone is found both in the air we breathe and in the upper atmosphere. Near the earth, ozone in the air is a danger to life. It is a waste product. But ozone found 10 to 50 kilometers up in the atmosphere protects life on earth.  Ozone is formed in the atmosphere through the action of solar radiation. Once formed, the ozone blocks harmful radiation from reaching the earth. Scientists say a reduction in ozone and an increase in the harmful radiation will cause many more cases of skin cancer and will harm crops, animals and fishes.

The report said it is about 8 degrees colder 15 kilometers above earth than it was in 1979. Scientists think the first loss of ozone reduces the amount of solar energy the atmosphere can take in. This cools the atmosphere, increases ice cloud production and leads to more ozone loss.

Scientists found signs the ozone problem has spread. The study shows that the loss of ozone over the areas with larger population in North America and Europe was at least three times greater than scientists had thought. The ozone levels reduced much more seriously during winter months than in warmer months. This is not surprising because the amount of ozone in the atmosphere changes with the temperature.

An international effort is being made to stop the loss of ozone in the atmosphere. But many experts fear that the effort will not produce results fast enough to prevent harm to life on the earth.

1. The text is mainly about_______.

A. a change in atmosphere    　　　　　　　　　　 B. the solar radiation

C. the ozone problem　　　　　　　　　　　　　　　　 D. a hole in Antarctica

2. According to the text, which of the following statements is true?

A. Ozone in the atmosphere is a danger to life.

B. Since ozone in the air is harmful to life, the less ozone in the atmosphere the better.

C. Ozone is a kind of man-made chemical product.

D. The ozone up above us can stop harmful radiation from getting to the earth.

3. The loss of ozone may be caused by the following conditions except for_______.

A. the amount of solar energy　　　　　　　　　　　　    B. the colder temperature

C. the larger population　　　　　　　　　　　　　　  D. man-made chemicals

4. From the text we have learned that_______.

A. the scientists have done a great deal to stop getting warm on the earth

B. the temperature in 1979 was much colder than it is now

C. ozone holds solar energy and helps atmosphere take it in

D. successful efforts have been made to stop the loss of the ozone

5. This text mostly wants to_______.

A. draw people’s interest in atmosphere

B. call the public attention to ozone problem

C. help people to know the change in air

D. make people know the information above us

______ was in 1979______ I graduated from university.

1. A.
   That; that
2. B.
   It; that
3. C.
   That; when
4. D.
   It; when