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      2. 高三冊(cè)第17-18單元疑難點(diǎn)解析

        發(fā)布時(shí)間:2016-6-13 編輯:互聯(lián)網(wǎng) 手機(jī)版

        作者:李林

        1. Struggling in a world of silence and darkness, I must have appeared to them to be simple. 我掙扎在一個(gè)聽不到聲音、看不見天日的世界里,對(duì)他們來說,我準(zhǔn)顯得頭腦簡(jiǎn)單。

        1) world表示"世界"時(shí),通常在其前加定冠詞the;但world前面或后面有定語(yǔ)修飾時(shí),通常要用不定冠詞a。

        [原題再現(xiàn)]

        Wouldn't it be ________ wonderful world if all nations lived in ________ peace with one another?

        A. a; / B. the; / C. a; the D. the; the

        答案:A

        2) must have appeared表示對(duì)過去的一種肯定推測(cè),意思是"肯定","準(zhǔn)是"。例如:

        It must have rained last night, for the ground is wet.昨天晚上肯定下過雨了,因?yàn)榈孛孢是濕的。

        對(duì)過去的否定推測(cè)不能用"mustn't + have + 過去分詞",而應(yīng)使用"can't (couldn't) + have + 過去分詞"。

        [原題再現(xiàn)]

        My sister met him at the Grand Theatre yesterday afternoon, so he ________ your lecture.

        A. couldn't have attended

        B. needn't have attended

        C. mustn't have attended

        D. shouldn't have attended

        答案:A

        2. Those first words were to change my world.我最先學(xué)的這些單詞改變了我的生活天地。

        "be + 不定式"結(jié)構(gòu)常有以下用法:

        1) 常用來表示計(jì)劃或安排(做某事)的意思。例如:

        We are to begin the work next month.我們安排下個(gè)月開始這項(xiàng)工作。

        2) 表示注定要發(fā)生的事。例如:

        This experience was to change his life.這次經(jīng)歷注定要改變他的生活。

        [原題再現(xiàn)]

        If a man ________ succeed, he must work as hard as he can.

        A. will B. is to

        C. is going to D. should

        答案:B

        3. When there is no one in the office, you can leave the answering machine on so that people who call you up can leave a message.辦公室沒有人的時(shí)候,你可以讓留言機(jī)開著,以便給你打電話的人可以留言。

        本句中兩次出現(xiàn)了leave,第一個(gè)leave后接復(fù)合賓語(yǔ),是"使......處于(某種狀態(tài))"的意思;第二個(gè)leave是"把......交給;委托"的意思,短語(yǔ)leave sb. sth (=leave sth. to sb.)意思是"把某物(事)交給某人"。leave a message的意思是"留言"。

        [原題再現(xiàn)]

        ①________ it with me and I'll see what I can do.

        A. When left B. Leaving

        C. If you leave D. Leave

        ② I'm afraid Mr. Brown isn't in. Would you like to ________ a message?

        A. give B. leave C. carry D. take

        答案:① D ② B

        4. It took him some time to connect the long rubber pipe to the air supply pipe that ran round the port, but at last it was done and as a result work was able to progress much faster.他花了相當(dāng)長(zhǎng)的時(shí)間去把那根長(zhǎng)長(zhǎng)的橡皮管接到環(huán)繞港口的輸氣管上,但最后還是接好了,因此,修理工作進(jìn)展得快多了。be able to一般可與can互換使用,其區(qū)別是:

        1) can沒有將來時(shí)、完成時(shí)等,這種情況下用be able to表達(dá)。

        2) 表示"過去成功地做了某事"時(shí),不可用could,應(yīng)使用was (were) able to來表達(dá)。本句中的was able to就不能用could替換。

        [原題再現(xiàn)]

        The fire spread through the hotel very quickly but everyone ________ get out.

        A. had to B. would

        C. could D. was able to

        答案:D

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