例句解析3

　7. Although the sea breaks up the waste, beaches may become polluted and fish may not be safe to eat. (L.22)

　　break up打碎;拆散;分解;break down(車輛、機器)損壞;(計劃、談判)失敗;(身體、精神)崩潰;break out(戰(zhàn)爭、災(zāi)害)突然爆發(fā);break in打斷(談話);突然闖入;break into破門而入;break away from擺脫(束縛);克服(習(xí)慣);脫離(政府)。 

如:

　　A large piece of ice broke away from the main block.

　　一大塊冰從整個大冰塊上斷裂開來。

　　Chemicals in the body break our food down into useful substances.

　　人體中的化學(xué)元素把食物分解成有用的物質(zhì)。

　　[高考示例]

　　News reports say peace talks between the two countries _____ with no agreement reached.

　　(NMET2003)

　　A. have broken out B. have broken down

　　C. have broken in D. have broken up

　　8. Second, much energy is wasted producing things that are thrown away. (L.22)

　　waste time (in) doing sth.意為“浪費時間做某事”,本句中介詞in已省略。類似的結(jié)構(gòu)還有:spend...(in) doing, be busy (in) doing, have trouble (in) doing等。如:

　　Graduates are busy (in) packing up for their working posts.

　　畢業(yè)生們正忙著整理行裝去他們新的工作崗位。

　　[高考示例]

　　You’re _____ your time trying to persuade him; he’ll never join us. (NMET1995)

　　A. spending B. wasting

　　C. losing D. missing

　　9. At one time, certain types of radioactive waste were put in the sea in metal containers. (L.22)

　　at one time過去曾有一段時間;一度;at a time每次,一次;at the time目前;當(dāng)時;at all times總是,一直;at times有時;at the same time同時;盡管如此;at no time 永不, 在任何時候都不;at any time隨時; 無論何時。 如:

　　It seemed like a good idea at the time.

　　當(dāng)時那好像是個好主意。

　　It will cost a lot of money. At the same time, I think we shall need it and it will certa

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