-----Can you tell me ?---- You should wear a business suit.A. how should you wear h——青夏教育精英家教网—

-----Can you tell me_________________ ?

---- You should wear a business suit.

A. how should you wear here

B. what I should wear here

C. why do I wear here

完形填空从A、B、C三个选项中选出最佳答案。(每小题1分，共10分)

Canada is the second largest country in the world. It is over 7 000 kilometers from the_____ coast to the east. It _____ six time zones. _____ it is 9 a.m. in Vancouver on the west coast, it is 1:30 p. m in Saint John on the east coast.

English and French _____ the two main languages in Canada. About 60 percent of _____ population speak French. More _____ 70 percent of its population live in cities near the U.S. border(边境).

Ottawa is the capital. Every year millions of tourists go there to _____ museums and take partin the cultural(文化的)activities. Toronto is the largest city of the country _____ about 2.5million people. Montreal is ____ second biggest French-speaking city in the world.

The maple (枫树) leaf is the national symbol of Canada. The Canadian flag has a red maple leaf on a red ___ white background.

1.A. west B. east C. south D. north

2.A. is B. had C. has D. have

3.A. Which B. What C. Where D. When

4.A. are B. is C. will be D. has been

5.A. their B. his C. its D. our

6.A. up B. over C. about D. than

7.A. saw B. visit C. look D. find

8.A. with B. for C. from D. at

9..A. a B. an C. the D. 不填

10.A. or B. and C. but D. however

根据表格信息，从每小题的A、B、C、D中选出最佳答案。

The earth is 4 600 million years old. We humans have lived on earth for only 35 000 years, but during this period we have changed our planet a lot in many ways. Some things we’ve done are very good for the earth while some are bad.

All over the world, people have cut down millions of trees. When it rains or when the wind blows, the earth is taken away. Forests have become deserts, so more and more sorts of animals and plants are disappearing.

In big cities, cars and buses have polluted the air. Many people in cities now have health problems.

Factories have also polluted the land and the water. As a result, many rivers and lakes are nowdead.

Around the earth, there’s a special kind of oxygen called “ozone”(O3). It is important to theearth. But now air pollution is destroying it and that has made a very big hole in the ozone layer. Too much harmful radiation from the sun passes through the hole and reaches the earth directly. This is very dangerous because this kind of radiation can cause cancer.

Carbon dioxide (CO2) in the air has increased a lot. It mainly comes from burning oil, coal andwood. This has formed a “blanket” around the earth. The heat from the sun can’t escape so thetemperature is rising. This is called “the greenhouse effect”. It causes the level of the oceans to rise and the climate of the earth to change.

All these problems are very serious, so we must do something now.

根据短文内容，从题中所给的A、B、C、D四个选项中选择最佳答案。

1.What does our planet mean here?

A. The sun. B. Mars.

C. The moon. D. The earth.

2.In the passage, “blanket” refers to_______________.

A. carbon dioxide around the earth

B. the ozone layer in the sky

C. the forests around the world

D. pollution all over the world

3.The level of the oceans is rising because of _______.

A．pollution