Unit 2 The environment單元復(fù)習(xí)學(xué)案
②(牛津p1680)these days we rely heavily on computers to organize our work.
現(xiàn)在,我們在很大程度上依賴電腦來安排我們的工作。
③you should rely on your own judgement.
你應(yīng)該相信你自己的判斷。
15.完成句子
(1)湯姆在穿著上總是依賴他妻子的意見。
tom always_______ _______ _______ ________ ________advice on clothes.
答案:relies on his wife for
(2)你可以相信我一定會為你保守秘密。
you can_______ _______ _______ _______keep your secret.
答案:rely on me to
(3)你可以相信他一定會準(zhǔn)時來到。
you can_______ _______ _______ _______he must come here on time.
答案:rely on it that
句型解析
1【教材原句】 the world’s population has grown to more than six times what it was in 1800.(p22)
世界人口已經(jīng)增長到了18XX年時的六倍多。
【句法分析】 more than six times what it was in 1800是“倍數(shù)+what從句”的形式,意為“是(比)……的……倍”。
倍數(shù)的表達方式有:
(1)a+倍數(shù)+形容詞或副詞的比較級+than+b,表示“a比b大(長、高、寬等)多少倍”。
(2)a+倍數(shù)+as+形容詞或副詞的原級+as+b,表示“a是b的多少倍”。
(3)a+倍數(shù)+the size/height/length/width,etc.+of+b,表示“a是b的多少倍”。
(4)a+倍數(shù)+what從句,表示“a是……的多少倍”。
16.完成句子
(1)這輛小車的速度比那輛卡車快兩倍。
the car runs________ ________ than that truck.
答案:twice faster
(2)亞洲的面積是歐洲的四倍。
asia is________ ________ ________ ________ as europe.
答案:four times as large
(3)這座山的高度是那座小山的四倍。
this hill is________ ________ ________ ________of that small one.
答案:four times the height
(4)這條路是四年前的三倍長。
the length of the road is three times what________ ________ ________ ________ ________.
答案:it was four years ago
2【教材原句】 people should take responsibility for not buying certain kinds of fish,because there_are not many left in the ocean.(p25)
人們應(yīng)該為買不到某種魚負責(zé)任,因為在海洋里已剩下不多的魚了。
【句法分析】 本句為because引導(dǎo)的原因狀語從句,從句又為there be結(jié)構(gòu),其中l(wèi)eft in the ocean為過去分詞短語,作定語。
there be結(jié)構(gòu):
there is no time left;let’s hurry up!
時間不多了,我們快點吧!
歸納拓展
there be的常見句型:
there happen(s)to be...碰巧有……
there seem(s)to be...好像有……
there is likely to be...可能有……
there may/might be...可能有……
there must be...一定有……
there can’t be...不可能有……
there is said to be...據(jù)說有……
there used to be...過去常常有……
there is certain/sure to be...肯定有……
there goes the bell.鈴響了。
【溫馨提示】
(1)there be句型中,謂語動詞除用be之外,還可用某些狀態(tài)動詞,如:remain,lie,exist,live以及表示位置轉(zhuǎn)移的動詞arrive,come,enter,follow,rise等。
(2)there be句型的非限定形式有there to be和there being兩種形式,它們可以在句中作主語、賓語、狀語等。