1. … they look for such a chance.

　　句中的such是前置限定詞，可放在可數(shù)或不可數(shù)名詞前，如：

　　1) I''ve never seen such beautiful scenery.(我從沒(méi)見(jiàn)過(guò)這樣美麗的景色。)

　　2) He didn''t expect that the audience would give him such a response.(他沒(méi)料想到觀眾們會(huì)給予如此反應(yīng)。)

　　3) She didn''t feel like going out on such a cold day.(她不想在如此寒冷的日子里出門(mén)。)

　　從下面的句子中可以看出so與such的區(qū)別，so是副詞，通常用來(lái)修飾形容詞或副詞：

　　1) The question was so difficult that nobody could answer it.

　　(這個(gè)問(wèn)題太難了，沒(méi)人能回答。)

　　2) His eyesight was so poor that he couldn''t see anything clearly.

　　(他的視力不好，什么也看不清。)

　　3) He ran so fast that nobody could catch up with him.

　　(他跑得那么快，沒(méi)有人能趕上他。)

　　2. It is more important for them to learn to think in the language than to know the meaning of every word.

　　不定式短語(yǔ)to learn to think in the language是句子的真正主語(yǔ)。it常常被用來(lái)代替不定式，在句子中充當(dāng)形式主語(yǔ)，而把真正的主語(yǔ)移到句子后面去，這樣使句子顯得比較平穩(wěn)。為了說(shuō)明不定式表示的動(dòng)作是誰(shuí)做的，便在不定式前加for引起的短語(yǔ)。又如：

　　1) It is not at all difficult for him to understand the poem.

　　2) It is necessary for us to lend him a helping hand at this time.

　　more important than是形容詞比較級(jí)形式，請(qǐng)翻譯下面的句子：

　　1) 湯姆的年齡比瑪麗大。(Tom is older than Mary.)

　　2) 這本書(shū)比那本書(shū)更有趣。(This book is more interesting than that one.)

　　3) 我們班的學(xué)生人數(shù)比他們班的多。(There are more students in our class than in theirs.)