---People often don’t appreciate what they have, do they? ---No, _______ they lose it.

A. if B. after

C. until D. when

A person who has slept well will have a clear mind and work efficiently in the daytime

______ people with sleep disorders find it difficult to concentrate during the day.

A. unless B. while

C. if D. until

As to the long-term effects of global warming some believe that the damage has been done, ___________________.

A. otherwise we take steps to make up now

B. now that we take steps to make up

C. whether we take steps to make up now or not

D. unless we take steps to make up now

He ______ (pretend) that a tiger toy was real and giving it a voice.

Where men control the household, less money ______ (spend) on healthcare and food, which results in poorer health for children.

One day, Nick invited his friends to supper. He was cooking some delicious food in the kitchen. Suddenly, he ______ (find) that he has run out of salt.

阅读理解。

Yangshuo, China

It was raining lightly when I 1.(arrive) in Yangshuo just before dawn. But I didn't care. A few hours 2.， I'd been at home in Hong Kong, with 3.(it) choking smog. Here, the air was clean and fresh, even with the rain.

I'd skipped nearby Guilin, a dream place for tourists seeking the limestone mountain tops and dark waters of the Li River 4.are pictured by artists in so many Chinese 5._(painting). Instead, I'd headed straight for Yangshuo. For those who fly to Guilin, it's only an hour away 6. car and offers all the scenery of the better­known city.

Yangshuo 7._(be) really beautiful. A study of travellers 8._(conduct) by the website TripAdvisor names Yangshuo as one of the top 10 destinations in the world. And the town is fast becoming a popular weekend destination for people in Asia. Abercrombie & Kent, a travel company in Hong Kong, says it 9._(regular) arranges quick getaways here for people 10.(live) in Shanghai and Hong Kong.

阅读下面短文,按照句子结构的语法性和上下文连贯的要求,要求在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卡标号为1-10的相应位置

With the 1._ (develop) of industry, air pollution is getting more and more serious. In Beijing, many people suffer different kinds of illnesses because 2. air pollution.

Air pollution is caused by the following 3.: about half of the problem is caused by vehicles. There are more and more cars, buses on the roads, and they give off 4.(poison) gases. 25% of air pollution is caused by factories. Another factor is the smokers. Smoking not only does harm to their health 5. to others. 6. these, about 10%of air pollution is caused by other reasons.

We should take some measures to fight 7._ pollution. New fuel can be used to take 8. place of gas. We can plant more trees. If everybody realizes the 9.(important) of environment and does something to stop pollution, the problem will 10. (solve).

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卡的相应位置上。

Why is pink or purple a color for girls and blue or brown for boys?

The answer depends largely 1. cultural values as well as personal experiences. To the Egyptians, green was a color 2. represented the hope and joy of spring, while for Muslims, it means heaven. Red is a symbol of good luck in many cultures. During the Spring Festival in China, children 3. (give) money in a red envelope to bring good fortune in the New Year. For many nations, blue is a symbol of protection and religious beliefs. Greek people often wear a blue necklace hoping to protect 4. against evils（灾祸）.

People’s 5. (choose) of colors is also influenced by their bodies’ reactions toward them. Green is said to be 6. most restful color. It has the ability to reduce pain and relax people both mentally 7. physically. People 8. (work) in green environment have been found to have fewer stomach aches.

Red can cause a person’s blood pressure to rise and increase people’s appetites（食欲）. Many decorators will include different shades of red in the restaurant. And many commercial websites will have a red “Buy Now” button because red is a color that 9. (easy) catches a person’s eye.

Blue is another calming color. Unlike red, blue is believed to cause people to lose appetite. So 10. you want to eat less, some suggest that eating from blue plates can help.

Liu Xiang’s breaking the world record was an exciting moment, ______ all of us will never

forget.

A. that B. One

C. it D. what