外研版高中英語必修二《Let's celebrate!》SectionB PPT課件，共40頁。
語言知識講練
高 頻 詞 語
1. indicate v. 表明，顯示；象征，暗示
【典例促記】
⊙What do the words in bold indicate: an order, a request, ability or possibility? (P17)
粗體的單詞表明什么：命令、請求、能力還是可能性？
⊙The falling leaves indicate that the fall is coming.
飄落的葉子暗示秋天來了。
⊙All the indications are that we are going to receive reasonable support from abroad.
所有跡象都表明，我們將從國外獲得有力支持。
⊙There are clear indications that the weather is changing.
有好些跡象顯示天氣要變了。
2. request n. 請求，要求
【典例促記】
⊙Mr and Mrs Harry Blunkett request the pleasure of your company at the wedding of their daughter ...
哈里•布倫基特夫婦非常榮幸地邀請您來參加他們女兒的婚禮……
⊙Being public figures, leaders are requested to appear strong and capable.
作為公共人物，領(lǐng)導者要表現(xiàn)得堅強且有能力。
⊙In Japan, the “OK” sign is a request for small change.
在日本，手勢OK表示要零錢。
⊙Tom requested that I (should) help him.
湯姆請求我?guī)椭?/p>
3. wave v. 揮手，招手
【典例促記】
⊙Oh, they’re waving at us！(P17)
哦，他們在向我們招手！
⊙She was in such a hurry that she didn’t even wave goodbye to us.
她走得很急，甚至都沒來得及和我們揮手道別。
⊙Huge waves were breaking on the shore.
巨浪拍打著海岸。
⊙A wave of happiness flooded me.
我心中涌起一股幸福的暖流。
語法講練
【語法講練】
1. may/might have done表示對過去行為的推測，意為“也許/或許已經(jīng)做過某事”，might的可能性更小。
【典例呈現(xiàn)】
◎John isn’t at home. I think he may/might have gone to school.
約翰不在家，我想他可能去上學了吧。
◎You might have read about it in the newspaper.
你可能已經(jīng)在報紙上看到這個消息了。
2. must have done表示對過去行為的肯定推測，意為“一定做過某事”，只用于肯定句中。
【典例呈現(xiàn)】
◎He reasoned that since she had not answered his letter she must have left here.
他推斷，由于她沒有給他回信，她一定是已經(jīng)離開這里了。
3. could have done是虛擬語氣，表示對過去事情的假設，意為“本來能夠做某事而沒有做”。
【典例呈現(xiàn)】
◎You could have done better，but you were too careless.
你本來可以做得更好，但你太粗心了。
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關(guān)鍵詞：Let's celebrate! PPT課件免費下載，.PPT格式；
