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先觀察原句
①I am speaking in favour of the Internet.
②There are two main points which must be included when we analyse the Internet.
③With the touch of a button or the click of a mouse,a student will find abundant information.
④These problems do not occur as often when people use traditional reference materials.
⑤To help solve this problem,a special clinic was opened in Beijing in 2005.
⑥One university did a study about the students who had dropped out.
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后自主感悟
1.按英語(yǔ)詞類劃分,以上各句中黑體部分的詞均為助動(dòng)詞。
2.以上各句中黑體部分的詞均無(wú)詞匯意義,不能單獨(dú)作謂語(yǔ)。
3.例句②中的be和例句⑤中的was在句中與實(shí)義動(dòng)詞include和open一起構(gòu)成被動(dòng)語(yǔ)態(tài)。
4.例句①中的am,例句③中的will和例句⑥中的had在句中與實(shí)義動(dòng)詞speak,find和drop一起構(gòu)成不同的時(shí)態(tài)。
5.例句④中的do_not在句中與實(shí)義動(dòng)詞occur一起構(gòu)成否定形式。
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