题目内容

【题目】Don't ________ the candles,or we can't see the things in the room.

A. talk about B. cut up C. blow out D. call back

【答案】C

【解析】句意:不要吹灭蜡烛,否则我们看不见屋里的东西了。A. talk about 谈论; B. cut up 切碎; C. blow out 吹灭; D. call back回电话。结合句意和语境可知选C。

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【题目】

The coast redwood is the unchallenged tallest of North American's trees. But do you know it grows from a seed (种子) that is smaller than a pea?

What's special about redwoods?

Redwoods are special for a couple of reasons. The first is their size. Imagine standing next to a tree which is the height of a 30-floor building. The second is their age. Redwoods usually grows to about 600 years old. Some are even more than 2000 years old.

Where do redwoods grow?

To find a coast redwood, you'll have to go to Oregon or California. The land along the west coast, about 450 miles long and up to 35 miles wide, is home to the redwoods. Coast redwoods do not grow anywhere else in the world.

Why do redwoods grow there?

The coast of the Pacific Ocean provides a special environment for the redwoods. Cool, wet air comes from the ocean and keeps the trees wet all year. That is important because most of the rain falls between October and May. During the dry summer months, the trees depend on the wet air over the coast.

How do redwoods survive?

Redwoods have a couple of protection systems(系统). The skin of an adult redwood tree can grow to as thick as 12 inches. The thick covering protects the lower part of the tree from fire damage. Also, most of a redwood's branches and leaves are high up on the tree. This keeps them safe from forest fires. Redwoods are safe from insect damage because the wood has a bitter-tasting chemical.

What should I do?

If you ever get a chance, visit a redwood forest. Look among the tree trunks and imagine who might have camped there a thousand years ago. Look upward and just imagine how high the trees might grow if we protect them.

1To see a redwood tree, you should go to _______.

A.the west coast of North America

B.the coast of the Atlantic Ocean

C.South American coast

D.anywhere in the world

2What is important for redwoods to grow in dry seasons?

A.Rain fall.B.Sea water.C.Wet air.D.Ocean life.

3Redwoods are safe from forest fires because of

A.their tasteB.their chemicalC.their systemsD.their colors

4If you want to know how big coast redwoods are, under which question should you look?

A.What's special about redwoods?

B.Where do redwoods grow?

C.Why do redwoods grow there?

D.How do redwoods survive?

5What is the author's main purpose for writing this passage?

A.To praise.B.To suggest.C.To introduce.D.To question.

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