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高英語(yǔ)高中英語(yǔ)語(yǔ)法重點(diǎn)難點(diǎn)回顧 (3) 關(guān)聯(lián)詞只能用whether不能用if表示“是否”的情況如下: A)在表語(yǔ)從句和同位語(yǔ)從句中。例如： The question is whether the film is worth seeing. The news whether our team has won the match is unknown. B)在主語(yǔ)從句中,只有用it作形式主語(yǔ)時(shí),whether和if都能引導(dǎo)主語(yǔ)從句,否則,也只能用whether。例如： Whether we shall attend the meeting hasn't been decided yet. It hasn't been decided whether(if)we shall attend the meeting. C)在介詞之后。(介詞往往可以省略)例如： It all depends (on) whether they will support us. D)后面直接跟動(dòng)詞不定式時(shí)。 He doesn't know whether to stay or not. E)后面緊接or not 時(shí)。 We didn't know whether or not she was ready. F)引導(dǎo)讓步狀語(yǔ)從句,只能用whether。 Whether you like it or not, you must do it well. G)用if會(huì)引起歧義時(shí)。例如：Please let me know if you like it. 該句有兩個(gè)意思：“請(qǐng)告訴我你是否喜歡”。 或“如果你喜歡, 請(qǐng)告訴我?！?用了whether就可以避免。 在下面幾種情況下必須用“that”引導(dǎo)定語(yǔ)從句： 1)先行詞是不定代詞：all, few, little, much, something, nothing, anything等。All that we have to do is to practise every day. 2)先行詞被序數(shù)詞或形容詞級(jí)所修飾。 The first lesson that I learned will never be forgotten. 3)先行詞被all, any, every, each, few, little, no, some, 等修飾。 I have read all the book (that) you gave me. 4)先行詞被 the only, the very, the same, the last 修飾時(shí)。 He is the only person that I want to talk to. 5)先行詞既有人又有物時(shí)。They talked of things and persons that they remembered in the school. 先行詞是表示地點(diǎn)時(shí),要根據(jù)從句的謂語(yǔ)動(dòng)詞是及物的還是不及物的。如果是及物的就用that(which),否則用where。 This is the house where he lived last year. This is the house that (which) he visited last year. 用no sooner…than和hardly…when引導(dǎo)的從句表示“剛……就……”。主句中的動(dòng)詞一般用過去完成時(shí),從句用過去時(shí);而且主句一般倒裝,把助動(dòng)詞had提到前面。例如：Hardly had I entered the room when I heard a loud noise. 代詞作主語(yǔ)時(shí),主謂語(yǔ)序不變。Here it is. Here he comes. 當(dāng)句首狀語(yǔ)為表示地點(diǎn)的介詞詞組時(shí)也常常引起全部倒裝。 South of the city lies a big steel factory. From the valley came a frightening sound. 表語(yǔ)置于句首時(shí),倒裝結(jié)構(gòu)為“表語(yǔ)+連系動(dòng)詞+主語(yǔ)”。 Present at the meeting were Professor White, Professor Smith and many other guests. Gone are the days when they could do what they liked to the Chinese people. Among the goods are Christmas trees, flowers, candles and toys. He has been to Beijing. So have I. Li Wei can't answer the question. Neither can I.
高英語(yǔ)高中英語(yǔ)語(yǔ)法重點(diǎn)難點(diǎn)回顧 (3) 關(guān)聯(lián)詞只能用whether不能用if表示“是否”的情況如下: A)在表語(yǔ)從句和同位語(yǔ)從句中。例如： The question is whether the film is worth seeing. The news whether our team has won the match is unknown. B)在主語(yǔ)從句中,只有用it作形式主語(yǔ)時(shí),whether和if都能引導(dǎo)主語(yǔ)從句,否則,也只能用whether。例如： Whether we shall attend the meeting hasn't been decided yet. It hasn't been decided whether(if)we shall attend the meeting. C)在介詞之后。(介詞往往可以省略)例如： It all depends (on) whether they will support us. D)后面直接跟動(dòng)詞不定式時(shí)。 He doesn't know whether to stay or not. E)后面緊接or not 時(shí)。 We didn't know whether or not she was ready. F)引導(dǎo)讓步狀語(yǔ)從句,只能用whether。 Whether you like it or not, you must do it well. G)用if會(huì)引起歧義時(shí)。例如：Please let me know if you like it. 該句有兩個(gè)意思：“請(qǐng)告訴我你是否喜歡”。 或“如果你喜歡, 請(qǐng)告訴我?！?用了whether就可以避免。 在下面幾種情況下必須用“that”引導(dǎo)定語(yǔ)從句： 1)先行詞是不定代詞：all, few, little, much, something, nothing, anything等。All that we have to do is to practise every day. 2)先行詞被序數(shù)詞或形容詞級(jí)所修飾。 The first lesson that I learned will never be forgotten. 3)先行詞被all, any, every, each, few, little, no, some, 等修飾。 I have read all the book (that) you gave me. 4)先行詞被 the only, the very, the same, the last 修飾時(shí)。 He is the only person that I want to talk to. 5)先行詞既有人又有物時(shí)。They talked of things and persons that they remembered in the school. 先行詞是表示地點(diǎn)時(shí),要根據(jù)從句的謂語(yǔ)動(dòng)詞是及物的還是不及物的。如果是及物的就用that(which),否則用where。 This is the house where he lived last year. This is the house that (which) he visited last year. 用no sooner…than和hardly…when引導(dǎo)的從句表示“剛……就……”。主句中的動(dòng)詞一般用過去完成時(shí),從句用過去時(shí);而且主句一般倒裝,把助動(dòng)詞had提到前面。例如：Hardly had I entered the room when I heard a loud noise. 代詞作主語(yǔ)時(shí),主謂語(yǔ)序不變。Here it is. Here he comes. 當(dāng)句首狀語(yǔ)為表示地點(diǎn)的介詞詞組時(shí)也常常引起全部倒裝。 South of the city lies a big steel factory. From the valley came a frightening sound. 表語(yǔ)置于句首時(shí),倒裝結(jié)構(gòu)為“表語(yǔ)+連系動(dòng)詞+主語(yǔ)”。 Present at the meeting were Professor White, Professor Smith and many other guests. Gone are the days when they could do what they liked to the Chinese people. Among the goods are Christmas trees, flowers, candles and toys. He has been to Beijing. So have I. Li Wei can't answer the question. Neither can I.