牛津譯林版高中英語(yǔ)選修七unit 3《the world online》（grammar）課件-文庫(kù)吧
2024-10-28 17:17 本頁(yè)面
【正文】 small animals are kept in the cages. ? He is giving a lecture. ? The Inter has too much information that has not been evaluated for accuracy. ? Your house is bigger and nicer than mine. ? I am to go abroad on business tomorrow. 1. be（ am/is/are/was/were/been） Auxiliary verbs Tip: 1) be作為本動(dòng)詞表示狀態(tài)或客觀存在等意思。 2) be +不定詞連用 , 表示約定、義務(wù)、命令等未來(lái)的動(dòng)作或狀態(tài)。 3) be +現(xiàn)在分詞構(gòu)成各種進(jìn)行時(shí)態(tài)。 4) be +過(guò)去分詞構(gòu)成被動(dòng)語(yǔ)態(tài)。 5) be用于 have/has/had后構(gòu)成完成時(shí)。 1. be（ am/is/are/was/were/been） Auxiliary verbs ? He didn’t find any useful information on the Inter. ? These kinds of errors do not occur as often when people use traditional reference materials. ? Then, why does he e here? ? You do know a lot about puters. ? Never did I see such a strange man. 2. do（ does/did） Auxiliary verbs Tip: 1) do作為助動(dòng)詞時(shí)的時(shí)態(tài)、人稱和數(shù)的變化有 do, does, did三種形式。 2) do+主詞 +原形動(dòng)詞構(gòu)成疑問(wèn)句。 3) do+not+原形動(dòng)詞構(gòu)成否定句。 4) do (+not)+主詞用于附帶問(wèn)句。 5) do +原形動(dòng)詞用于加強(qiáng)語(yǔ)氣句。 6) Never (Only) 等 +do+主詞 +原形動(dòng)詞用于倒裝句。 2. do（ does/did） Auxiliary verbs ? I have never seen such a strange man. ? Can I have my hair cut now? ? I often have my assistant help me do it. 3. have（ has/had） Tip: 1) 助動(dòng)詞 have+過(guò)去分詞構(gòu)成完成時(shí)
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