阅读理解 Algaeare plants which have no roots or leaves. They grow in wet places. You may have seen algae on top of the water in a pond or lake. Algae will even grow in fish bowls. Most algae are green or 题目和参考答案——青夏教育精英家教网—

阅读理解

　　Algae(水藻)are plants which have no roots or leaves. They grow in wet places. You may have seen algae on top of the water in a pond or lake. Algae will even grow in fish bowls. Most algae are green or blue-green, but some are red, brown, or black.

　　Often, you buy algae at the chemist's shop, but you do not know it. Some kinds of algae are used in making ice-cream, toothpaste(牙膏)and medicine.

　　Algae do not look or taste good, but they are high in food value. Man is working w make algae taste better, then they can be used for food.

　　Tomorrow, more people will live in the world. They will need more food to eat. Algae are easy to grow. They may become an important food.

　　Algae can grow on spaceships. The men who go out into space may have their own algae gardens. Then they will not run out of food.

1．From the passage we may infer that ________.

[　　]

A．man will never be able to take algae as food

B．algae are the best food for people on spaceships

C．man will live on algae instead of grain

D．algae may help feed the people all over the world

2．Which of the following statements is TRUE?

[　　]

A．Algae are vegetables that have testy roots.

B．Algae are plants invented by a certain chemist.

C．Algae are plants which have neither roots nor leaves.

D．Algae are widely considered to be a good medicine of tomorrow.

3．The main idea of the passage is that ________ .

[　　]

A．men in spaceships want to start growing vegetables by themselves

B．algae can easily be dried and widely used

C．algae axe plants that may become an important food

D．scientists have found that algae grow much more quickly in apace

4．Which of the following does the story lead you to believe?

[　　]

A．The research on algae has not yet begun.

B．Algae grow in small places.

C．Algae may be green or red.

D．Algae are tasty, but poisonous.

5．According to the passage some kinds ad algae are used in ________.

[　　]

A．making ice-cream, toothpaste and medicine

B．curing all kinds of diseases

C．feeding fish

D．feeding birds

答案：D;C;C;C;A
解析：

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