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hine. (2) How to use the machine is a question. (3) The question is when to go there. 省去了to 的動詞不定式1)let, have, make+do2)感官動詞 see, watch, look at, notice, hear, listen to, smell, feel, find +to。. I saw him dance. =He was seen to dance.. The boss made them work the whole night.=They were made to work the whole night.3)would rather,had better + do 動詞不定式的特殊句型:1)too…to…+to do: . He is too excited to speak.2)enough to do: . The child is old enough to go to school.3)Why not +do . Why not take a holiday?4)so as (not) to do: 表示目的 . Go in quietly so as not to wake the baby. 不定式的難點(diǎn):1)用作介詞的“to”:比如說look forward to 。 devote oneself tobe/get used to,后面都是+doing的!2)It39。s of 二、動詞ing形式:動詞ing形式分為兩種,一是動名詞,二是現(xiàn)在分詞1.動詞的ing形式用作動名詞:動名詞是動詞的一種非謂語形式,由動詞原形加ing構(gòu)成,它在句中起名詞的作用,可以在句子中用作主語、表語、賓語、賓語補(bǔ)語、狀語和定語。3)動名詞作賓語: . Jim dislikes eating chocolate. 吉姆不喜歡吃巧克力。[說明] 有些動詞和動詞短語只能接動名詞。t help, keep on, feel like, be used to, look forward to, prefer to,。. a smiling face 笑臉 swimming pool 游泳池 diningcar 餐車2.動詞的ing形式用作現(xiàn)在分詞:ing分詞通常用作賓語補(bǔ)足語,表示動作正在發(fā)生或者正在進(jìn)行。 2)I heard someone knocking at the door. 我聽見有人在敲門。t forget _________ the letter.A. to send B. send C. sending D. being sent2. The chair looks very old, but in fact it is very fortable to _________.A. sit B. sit on C. be sat D. be sat on 3. Is ______ necessary to return the book tomorrow?A. this B. that C. it D. which4. I39。1. The doctor came______ our eyes. A. to examine B. for examining C. as to examine D. examining2. Our teacher always makes us _______ hard. A. to work B. work C. working D. worked3. _______ our classroom once a week is necessary. A. Cleaning B. Clean Cleaned D. To clean4. _______ is our duty ______ good service to customers A. That, to give B. This, giving C. It, to give D. It, giving5. It took years______ the highrise. A. for our building B. for us in building C. to build D. building6. Their wish is _____ a house of their own. A. to have B. for having C. have D. of having7. The teacher agreed _____ us_____ the test papers home.A. to let, take B. to let, to take C. letting, take D. let, take8. When he saw I was in a hurry, he offered _______ me his bicycle.A. lending B. lent C. to lend D. in lending9. I don39。t decided ________A. to take which train B. which to take a train C. which train to take D. which train taken11. You must remember____ me a phone call as soon as you get there. A. giving B. to give C. gave D. give12. Professor Brown taught his students______ English,