【題目】閱讀下面材料, 從每題所給的A, B, C, D四個選項中選出最佳選項。C
When you watch TV programs about wild animals, it is surprising to see how an antelope (羚羊) can run away from a strong lion. In the wild, everyone has his own way to protect himself. Even plants have their own ways to fight against their enemies.
Over millions of years, plants have developed their own way to protect themselves. Chemicals (化學物質(zhì)) are used by plants to live. By making their leaves, flowers, roots and fruits poisonous (有毒的) to enemies, plants can fight back.
One such plant is the Golden Wattle tree. The British scientist David Cameron has found when an animal eats the tree's leaves, and the number of poisonous chemicals becomes more in the other leaves. "It's like the injured (受傷的) leaves telling the others to fight against the enemy together," he said.
The tree also sends messages to plants near it by giving out a special smell. Golden Wattle trees in the nearby 45 meters will get the message and produce more poison in 10 minutes. Now, if an enemy eats too many of the trees' leaves, he will die.
Every kind of plant is good at producing special chemicals. Animals that feed on plants or grass, like rabbits, can safely eat the leaves of one tree, but they may be hurt by its neighbor.
In this way, plants have not only developed their own way to protect themselves, but also shared it with others. So it's impossible for a single animal to damage even a small area of forest.
(1)What's the function (功能) of the first paragraph?
A.To use an example to lead to the main idea of the passage.
B.To show the structure (結(jié)構(gòu)) of the passage.
C.To introduce how wild animals protect themselves.
D.To raise readers' interest on wild animals.
(2)If animals eat one Golden Wattle tree's leaves, the tree can ________.
A.kill the animals with a special smell
B.tell other trees to come to protect it
C.warn people to fight against the animals
D.send messages to the plants nearby to protect themselves
(3)How long can a Golden Wattle tree produce more poison when it gets the message from the plant 45 meters away from it?
A.For about an hour.
B.In ten minutes.
C.For fifteen minutes.
D.For more than ten minutes.
(4)What do you think of the plants' way to protect themselves?
A.It's bad for human beings.
B.It's good for forests.
C.It's helpful to some animals.
D.It's harmful to forests.
(5)What does the passage mainly talk about?
A.The examples of protecting forests.
B.The balance between animals and plants.
C.The ways of plants fighting against enemies.
D.The relationship between lions and antelopes.

【答案】
(1)A
(2)D
(3)B
(4)B
(5)C
【解析】文章大意:文章主要講述了每種動物有保護自己的方式。每種植物也有和它們的敵人作斗爭的方法。植物通過化學物質(zhì)活著。通過使它們的葉子、花、根以及果實對敵人有毒,植物能夠回擊敵人。樹也通過發(fā)出一種特殊的味道發(fā)送信息給它周圍的植物。因此對于單一的動物傷害甚至一小片樹林都是不可能的。
(1)歸納總結(jié)題。根據(jù)第一段 When you watch TV programs about wild animals, it is surprising to see how an antelope (羚羊) can run away from a strong lion. In the wild, everyone has his own way to protect himself. Even plants have their own ways to fight against their enemies.可知作者利用第一段導出主題植物也有保護自己的方式。故選A。
(2)細節(jié)理解題。根據(jù)原句The British scientist David Cameron has found when an animal eats the tree's leaves, and the number of poisonous chemicals becomes more in the other leaves. "It's like the injured (受傷的) leaves telling the others to fight against the enemy together," he said.可知如果一個動物吃金合歡樹葉時,在其他樹葉的有毒的化學物質(zhì)會變多。就好像受傷的樹葉會告訴別的樹葉和敵人一起作斗爭,故選D。
(3)細節(jié)理解題。根據(jù)原句Golden Wattle trees in the nearby 45 meters will get the message and produce more poison in 10 minutes.可知附近45米的金合歡樹在10分鐘內(nèi)會得到信息并生產(chǎn)出更多的毒藥,故選B。
(4)細節(jié)理解題。根據(jù)原句In this way, plants have not only developed their own way to protect themselves, but also shared it with others.可知植物保護自己的方式對森林有好處。故選B。
(5)主旨大意題。通讀全文可知文章講了植物和敵人作斗爭的方法,故選C。

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