【正文】
。本文就是說明土壤對人類的重要性的。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。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。由此不難得出答案為 C。 。 IV. 。在書店里只能放在角落里了。 . 這位學生在這時找的應該是書。 . 前后句在這里是一個轉折,根據(jù)句子的意思就可判斷出來。 . 根據(jù)上句可知答案。 . 你不需要的東西你不必去買,這是常理。本句還要用一般將來時,故選 D。 本題考查被動語態(tài)。 ”表示人口多用 large 和big,表示人口少用 small,不用 more 或 less。 spent+時間 /錢+ doing sth,意為 “做某 事花費多少時間 /錢 ”,故選 A。 Spend 和 pay 主語是人, cost 主語是物, take主語多是形式主語 it,且多用于花費時間。 hundred表示具體的數(shù)字時,后面不能加 s, 另外,復合詞中的名詞只能用單數(shù),選 C。 since 用于完成時中,且要用延續(xù)性動詞,故選 C。 found 是動詞的過去分詞,本句不用被動語態(tài),因此選項 B 不正確,應用完 成時,故選 C。t ( )3. A. what B. which C. where D. when ( )4. A. surprised at B. not surprised at C. interested in D. not interested in ( )5. A. bought B. found C. read D. took ( )6. A. but B. and C. so D. or ( )7. A. little B. a little C. few D. a few ( )8. A. the book B. the shop C. the assistant D. the shopkeeper ( )9. A. in a bookshop B. in his hand C. in a corner D. in his pocket ( ). left B. let C. helped D. taught IV. 閱讀理解 All our food es from the soil (土壤 ). Some of us eat meat, but animals live on plants. If these were no plants, we should ha ve 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 h