Question

閱讀理解 　　All our food comes from the soil(土壤)．Some of us eat meat, but animals live on plants．If these were no plants, we should have no animals and meat．So the soil is necessary for life． 　　The top of ground is usually covered with grass or other plants．Plants grow in soil, which has a dark color．This dark soil is humus, dead leaves, dead plants and animal waste make it, but this takes a long time．When the humus has been made, plants can grow well in it． 　　All soil needs food．If we don’t give it any, the plants will be weak．Animals waste is the best food for the soil, but chemical fertilizers(化肥)are also very useful．The same crop should not be grown in the same place every year; it is better to have a different crop．A change of crop and the use of a good fertilizer will keep the land in good condition． 　　When the soil is dry, the wind blows it away．Sometimes heavy rain carries the humus down to a river．People should grow more and more trees and grass to stop wind from carrying the humus away．It takes hundreds of years to make humus, and so we must save every bit of it．Without soil, where can we grow food? (1) From the text, we know people live on ________． [　　] A． animal B． plant C． meat D． soil (2) The word “humus” means ________ in Chinese． [　　] A． 微生物 B． 土壤 C． 腐殖土 D． 粘土 (3) We should ________ to keep the soil． [　　] A． give more fertilizers B． kill more animals C． make more humus D． grow more trees and grass (4) We should save every bit of humus, because ________． [　　] A． it takes a long time to make humus B． the more humus in the soil, the better plants grow C． the chemical fertilizers are expensive D． A and B (5) The best title of this text should be ________． [　　] A． Soil is necessary to people B． The same crop can’t be grown in the same place every year C． Soil’s food is chemical fertilizers D． Humus is hard to make

Answer 1

答案：1．D;2．C;3．D;4．D;5．A;
解析：

(1)	綜合考慮第一段的意思，唯有D才是最恰當?shù)倪x項．
(2)	根據(jù)“This dark soil is humus, dead leaves, dead plants and animal waste make it, but this takes a long time．”一句所述，可推知這是一種由落葉、枯萎的植物以及動物的糞便在長時間的腐爛后所產(chǎn)生的一種東西．由此不難得出答案為C．
(3)	答案就在“People should grow more and more trees and grass to stop wind from carrying the humus away．”這一句話之中．
(4)	由“When the humus has been made, plants can grow well in it．”和“It takes hundreds of years to make humus，”這兩句話所表達的意思，可知答案只能是D．
(5)	本文就是說明土壤對人類的重要性的．事實上，文章結(jié)尾的那句話已經(jīng)點明主旨． 　　土壤是人類賴以生存的自然條件之一．沒有了土壤或者是土壤受到了較為嚴重的破壞，就會直接危及到人類的生存．本文在闡述土壤的成因、特性和重要性之后，呼吁大家都要保護土壤．