完形填空
阅读下列短文，从文后各题所给的四个选项中选出一个最佳答案。
Do you know why different animals or pests(害虫) have their special colors? Colors in them seem to be mainly used to ___1___ themselves.
Some birds like eating locusts(蝗虫), but birds cannot ___2___catch them. Why? It is because locusts change their__3___ with the change of the colors of crops. When crops are green, locusts look ___4___. But as the harvest time comes, locusts change into the same brown color __5___ crops have. Some other pests whose colors are ___6__ plants are easily found and eaten by ___7___. So they have to hide themselves for lives and appear only __8____.
If you ___9___ animals’ life, you’ll find the main use of colors is to protect __10___. Bears, lions and other animals ___11___ quietly through forests. They cannot be easily seen by hunters ___12___ their colors are much like the trees.
Colors are useful not only on the land, but also in the __13___. A kind of fish can __14____ a kind of black liquid(液体) when they face danger. The liquid spreads over quickly, so they cannot be found by their enemies and can quickly swim away. That is ___15____ they can live safely though they are not strong at all. So colors are really useful to animals.

阅读理解

One of the problems career people(上班族) have in the morning is dressing for the office when there will be an evening party immediately followed, with no time to return home to change. The easiest solution is to keep a full set of toiletries (洗漱用品) and make-ups stored somewhere at the office. A woman going to an evening party should dress in one of her “basic dresses” in the morning—the kind that can change into a different look with an added scarf or jewelry. In fifteen minutes, when her office day has ended, she can metamorphose(彻底变化) herself into another person with freshly cleaned teeth, combed hair, a new face, a different and dressier(漂亮的) pair of shoes, and some sparkling jewelry. If she must wear a long dress for the party, she should bring it to the office in a protective bag and store it safely until she has to put it on.

1.What’s a problem for the career people from this passage?

A. They must wear uniforms at work.

B. They have no dresses to wear.

C. They often have no time to change clothes for an evening party after work.

D. They have to go to the party.

2. The easiest solution is ____.

A. to keep a full set of toiletries and make-ups stored somewhere at the office

B. not to go to the party

C. to take a taxi home

D. to finish work earlier

3. If a woman is going to a party, she should wear ____ in the morning.

A. a nice dress B. a “basic dress”    C. her uniform        D. casual clothes

4. How long does it take a woman to change herself at least?

A. About five minutes. B. About fifteen minutes.

C. About half an hour. D. About fifty minutes.

5.If a woman must wear a long dress for the party, she should ____.

A. wear it in the morning                  B. buy one in the shop

C. borrow one from her workmate            D. bring it to the office

Do you know why different animals or pests(害虫) have their special colors? Colors in them seem to be mainly used to    1   themselves.
Some birds like eating locusts(蝗虫), but birds cannot    2  catch them. Why? It is because locusts change their   3   with the change of the colors of crops. When crops are green, locusts look    4 . But as the harvest time comes, locusts change into the same brown color    5  crops have. Some other pests whose colors are   6   plants are easily found and eaten by   7  . So they have to hide themselves for lives and appear only   8  .
If you    9 animals’ life, you’ll find the main use of colors is to protect    10  . Bears, lions and other animals  11  quietly through forests. They cannot be easily seen by hunters   12  their colors are much like the trees.
Colors are useful not only on the land, but also in the   13 . A kind of fish can   14  a kind of black liquid(液体) when they face danger. The liquid spreads over quickly, so they cannot be found by their enemies and can quickly swim away. That is   15  they can live safely though they are not strong at all. So colors are really useful to animals.

Taking away a city’s rubbish is a big job. Every day trucks come into a city to collect it. Most rubbish is made up of things we can’t eat or use. If we kept these things we would soon have a mountain of rubbish.

In some cities the rubbish is collected and taken outside of the city to a dump(垃圾站). Often the city dump is placed where the ground is low or there is a big hole. The kitchen rubbish is broken into small pieces and sent into the sewage system. The sewage system takes away the used water from toilets, bathtubs(澡盆) and other places.

To keep mice and flies away, some earth is used to cover the newly dumped rubbish. Later, grass may be planted on the rubbish-filled land. Finally, a house or a school may be built there, and then you’d never know that this had once been an old rubbish dump.

In other cities the rubbish is burnt in special places. The fire burns everything but the metal. Sometimes the metal can be used again in factories where things are made of metal. The food parts of rubbish are put in special piles where they slowly change into something called humus(腐殖土), which looks like black earth. It is rich with kinds of things that feed plants and help make them grow.

1.You can most probably read the passage in _______.

A．a history book                          B．a TV guide

C．a science book                         D．a telephone book

2.The underlined word “sewage” in the passage means_______.

A．排污             B．染色             C．洗涤             D．吸尘

3.How should we take care of a used metal box according to the passage?

A．By burning it off.                        B．By putting it in water.

C．By throwing it away.                      D．By reusing and recycling it.