北師大版英語九年unit4inventionsandinventorsppt復(fù)習(xí)課件-免費(fèi)閱讀
【正文】 ? 3. 重點詞匯 ? 二、具體內(nèi)容： ? （一）被動語態(tài)： ? 1. 一般現(xiàn)在時被動語態(tài)基本結(jié)構(gòu)： ? 主語＋ am/is/are＋過去分詞 ? The food is placed in the oven. ? They are turned into heat. ? 2. 一般過去時被動語態(tài)基本結(jié)構(gòu)： ? 主語＋ was/were＋過去分詞 ? Magic Squares were invented in China. ? Papermaking was introduced into Japan in 610. ? 3. 情態(tài)動詞被動語態(tài)基本結(jié)構(gòu)： ? 主語＋ can/should/must＋ be＋過去分詞 ? School uniform must be worn at all times. ? 4. 一般將來時被動語態(tài)基本結(jié)構(gòu)： ? 主語＋ will＋ be＋過去分詞 ? It can’t be a radio because it’s too big to be a radio. ? The report will ______ （ finish） in two days’ time. ? Milk should _______ （ keep） in the fridge. ? White clothes and colored clothes should not _______（ wash） together. ? School uniforms needn’t ______（ wear） at all times. ? （二）情態(tài)動詞： ? 當(dāng)不是很確定時，用 might或 may. （ might比 may更不確定） ? Who knows what will happen. You may even have married by then. ? It might be a tool for cutting things. I don’t know. ? 當(dāng)確定某件事是唯一的可能時，用 must. ? It must be some sort of toy. ? 當(dāng)確信不可能發(fā)生時，用 cannot. ? It cannot be a radio because it’s too big to
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