Question

阅读表达

　　All plant cells(细胞)are capable of taking up water．Even dead ones do to a certain degree．Absorption(吸收)of water by dead cell walls makes wood become larger．In common land plants, the living cells of roots take up most of the water．Land plants without roots do exist, however．Those greenish yellow lichens(苔藓)you see on rocks in the high mountains have no roots．Half a billion years ago, when water plants started to enter the land, the first land plants did not have roots．

　　________．These flowering plants are “the higher plants” because they evolved(进化)recently and are thus considered higher on the evolutionary scale(进化度)．In the Peruvian desert, there grows one of these rootless higher plants, a bromeliad．It is a relative of the pineapple．Even if this plant had roots, they would be of no use, because where the plant grows, it never rains．The plant gets its water only from the dew(露水)it collects at night, when its leaves cool off．Such rootless plants, of course, can be moved with ease, but they will only grow when they are placed out in the open．If they are placed too near a house, the radiation from the heat of the house prevents the leaves from cooling and so prevents dew from forming, and the plant dies．In the southern United States and in Puerto Rico, one sees bromeliads growing high above the streets on the insulation(绝缘物)of electric wires．These plants get their water from rain, and the only soil they ever come in contact with is the dust that may blow on their leaves．

1．What’s the most suitable title?(Please answer within 10 words．)

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2．How does the “bromeliad” get the water?(Please answer within 10 words．)

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3．Please fill in the blank in the second paragraph with proper words or phrases to complete the sentence．(Please answer within 10 words．)

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4．Which sentence can be replaced by the following one?

The plant grows in a place where there isn’t any rain．

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5．Translate the underlined sentence in the third paragraph into Chinese．

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Answer 1

答案：
解析：

1．Absorption of Water by Plants 　　2．It takes up water through its leaves． 　　3．Even among the flowering plants, one finds rootless forms 　　4．Where the plant grows, it never rains． 　　5．如果它们靠房子太近，来自房间的热量辐射会妨碍树叶的冷却，这样露珠就不会形成，植物就会死亡。