分析 在制造業(yè),廉價(jià)的材料不斷被更好更貴的(材料)取代.
解答 substituted.考查被動(dòng)語(yǔ)態(tài).substitute A for B是英語(yǔ)的固定搭配"用A代替B",.本句用的是現(xiàn)在進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài),所以答案填substituted.
點(diǎn)評(píng) 被動(dòng)語(yǔ)態(tài)由"助動(dòng)詞be+及物動(dòng)詞的過(guò)去分詞"構(gòu)成.被動(dòng)語(yǔ)態(tài)的時(shí)態(tài)變化只改變be的形式,過(guò)去分詞部分不變.疑問(wèn)式和否定式的變化也如此.掌握各種時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)是解題的關(guān)鍵.
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25.A.sent | B.bought | C.packed | D.left |
26.A.followed | B.made | C.used | D.showed |
27.A.single | B.hopeful | C.safe | D.short |
28.A.sigh | B.weep | C.panic | D.debate |
29.A.noticed | B.faced | C.changed | D.a(chǎn)ccepted |
30.A.when | B.until | C.a(chǎn)fter | D.since |
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32.A.stage | B.a(chǎn)irport | C.station | D.country |
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34.A.empty | B.new | C.correct | D.last |
35.A.truly | B.exactly | C.finally | D.totally |
36.A.looked | B.went | C.bent | D.settled |
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