2016屆高考英語一輪單元總復習講義精品薈萃外研版必修四Module 6知識詳解
③there is said to have been many people waiting to see him when he arrived.(＝it’s said that there had been...)
據說他到達的時候已經有很多人在等著見他了。
④they seem/appear to have known the fact.(＝it seems/appears that they have known the fact.)他們好像已經知道了真相。
即境活用
11.to our surprise，the painting considered________should have won the prize.
a.being copied b.having been copied
c.to have copied d.to have been copied
解析：選d。considered是過去分詞作定語修飾the painting。consider后面要求接不定式作賓(主)補，故可排除a和b。the painting和copy之間存在被動的關系，且copy動作發生在consider之前，故答案為d。此句意為“令我們吃驚的是，那幅被認為是抄襲的繪畫作品竟獲了獎。”
12.aids is said________the biggest health challenge to both men and women in that area over the past few years.
a.that it is b.to be
c.that it has been d.to have been
解析：選d。根據后面的時間狀語over the past few years知，此處用完成式。sb.be said to do表示“……據說做某事”的意思。
2【教材原句】 they say that the lowtemperature lake is unlikely to be able to support such large living creatures.(p52)
他們說，水溫這樣低的湖泊不可能生存有體形如此巨大的動物。
【句法分析】 (1)本句可以轉化為：they say that it is unlikely that the lowtemperature lake is able to support such large living creatures.
(2) 本句使用了be unlikely to do sth.這一結構，它的用法等同于be likely to do sth.。主要有下述用法：
主語(具體人/物)＋be (un)likely to do sth.
it(形式主語)＋be (un)likely to do sth.
it(形式主語)＋be (un)likely＋thatclause
【注意】 likely與unlikely不能用于it’s likely/unlikely for sb.to do sth.，而possible與probable是可以用于it’s possible/probable/impossible for sb.to do sth.。另外，(be)possible與(be)probable的主語不能是具體的某人或某物。
①look at the clouds！it’s likely to rain.
看那些烏云！天可能要下雨。
②it’s too late.he is unlikely to come.
太晚了。他不可能來了。
③it’s likely that we will beat them since we have practiced a lot.
因為我們做了大量練習，很可能我們會打敗他們。
④he is ill seriously so that it’s unlikely that he will attend the party.
他病得很嚴重所以他不可能參加這個晚會。
即境活用
13.—did you look up the time of trains to shanghai?
—yes，the earliest train is________to leave at 5∶30 a.m..
a.likely b.about
c.possible d.due
解析：選d。be due to do意為“應該……/預期的”；be about to do不和時間狀語連用；possible主語應為it；而likely與句意不符。
14.(高考陜西卷)studies show that people are more________to suffer from back problems if they always sit before computer screens for long hours.