[单项选择]If we do not adopt any measures to protect tigers, they will be ______ in the country in near future.
A. distinct
B. extinct
C. separate ,
D. exceptional

[单项选择]If we do not adopt any measures to protect tigers, they will be ______ in the country in near future.
A. distinct
B. extinct
C. separate ,
D. exceptional

[单项选择]I think it's high time we（）measures to protect the environment.
A. took
B. will take
C. take
D. have taken

[单项选择]It is essential that we ______ measures to protect the ozone layer.
A. will take
B. should take
C. would take
D. took

[单项选择]We must take _______ measures to protect the natural environment, otherwise, one million species that are alive today will have become extinct.
A. sharp
B. drastic
C. dramatic
D. sturdy

[单项选择]On the island of Zakinthos, measures to protect the turtles meet resistance chiefly for ______.
A. political reasons
B. economic reasons
C. environmental reasons
D. developmental reasons

[单项选择]We regret（）you that we do not have any vacancy at the moment.
A. informing
B. inform
C. informed
D. to inform

[单项选择]Measures should be taken to protect our environment before it is too late．
A. 在太晚之前应该立即采取措施来保护环境。
B. 在天黑之前，应该采取保护环境的措施。
C. 应该立即采取措施保护环境，否则为时已晚。
D. 应该立即采取措施保护环境，否则天要黑了。

[单项选择]We do not permit ______ in the office, so we do not permit him ______ here.
A. to smoke; to smoke
B. smoking; to smoke
C. smoking; smoking
D. to smoke; smoking

[单项选择]We do not mean to be disrespectful when we refuse to follow the advice of our leader.
A. venerable
B. respectful
C. famous
D. gracious

[单项选择]We shall fulfill your order as usual if we do not hear from you （） the contrary before the end of this month.
A. on
B. in
C. to
D. with

[单项选择]We do not necessarily grow wiser as we grow older.
A. 当我们长大后，没必要变得更聪明了。
B. 随着我们年龄的增长，我们未必会变得更聪明。
C. 随着我们年龄的增长，我们不是必然会变得更聪明。
D. 当我们长大后，未必就会变得更加聪明。

[单项选择]We do not necessarily grow Wiser as we grow older．
A. 当我们长大后，没必要变得更聪明了。
B. 随着我们年龄的增长，我们未必会变得更聪明。
C. 随着我们年龄的增长，我们不是必然会变得更聪明。
D. 当我们长大后，未必就会变得更加聪明。

[单项选择]

Passage Two
When we see well, we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are.
People who are nearsighted can only see things that are very close to their eyes. Everything else is not so clear. Many people who do a lot of close work, such as writing, reading and sewing, become near sighted. Then they have to wear glasses in order to see distant (远处的) things clearly’.
People who are nearsighted suffer from just the opposite problem. They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm’s length. If they want to do much reading, they must get glasses, too.
Other people do not see clearly because their eyes are not exactly the right shape. They have what is called astigmatism (散光). This, too, can be corrected by glasses. Some people’s eyes become cloudy because of cataracts (白内障). Long ago these
A. only when we cannot see perfectly
B. only when we can see well
C. even if we can see well
D. only when we realize how important our eyes are