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hich一般指物,在從句中既可以做主語,也可以用作賓語(在非正式文體中可以省去)that在從句中既可以做主語,也可以做賓語(在非正式文體中可省去);它既可以指人,也可以指物,因此在使用在使用who 和which的地方都可以用that。whose 是who的所有格,在從句中用作定語,多指人。例如:He talked to Mr. White who / that was the chairman of the mittee.The book which / thatyou are reading is written by Mark Twain.A teacher is a person whose duty is to teach.談?wù)搶砜梢杂矛F(xiàn)在進行時、be going to 結(jié)構(gòu),plan to do sth.,I’d like to…, I hope to…, I might結(jié)構(gòu),它們之間有微妙的差別,大家可以參看教材95頁的說明,在使用時加以注意。例如:I’m going to get married next year.I’m planning to buy a new flat.I’d like to visit your university again soon.She hope to go to university next year.L might apply for this job。 but I don’t know yet.Unit 7 Unit 12 1. therefore, although和however的用法 2. 現(xiàn)在完成進行時 3. 虛擬條件句 4. 進行時的被動語態(tài) 5. 間接引語我們先來看看therefore, although, 和however的用法。therefore表結(jié)果,比so顯得更正式一些,在句中常與and連用;如:He worked day and night, and therefore he was able to buy a new sports car. although表示“雖然……,但是……”所引導(dǎo)的從句可以放在主句前面,也可以放在主句的后面。在主句前面時,要用逗號與主句隔開;如: Although they were 75 years old, they still played tennis every day. ;由于although的中文意思是“雖然……,但是……”,很多學(xué)員容易犯的一個錯誤是用了although后,又用but,這在英語里是錯誤的。however表示轉(zhuǎn)折,與but意思相