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。 (3) can 常指客觀上能夠; be able to 更側(cè)重于“克服一定困難”、“經(jīng)過努力”、“有能力”做成某事。 be able to 和 can 的區(qū)別 (1) be able to 用于表能力,并可用于多種時(shí)態(tài)和非謂語動詞短語,而 can 只有一般現(xiàn)在時(shí)和一般過去時(shí)兩種時(shí)態(tài)。 反義短語: be different from 6. be able to do sth. 能夠做某事 We hoped that we should be able to do that. 我們希望我們能這樣做。 5. the same as … 和 ?? 一樣 — She looks the same as Lucy. — They are the twin sisters. 她看起來和露西長的一樣。 I couldn39。 three hundred 三百 five thousand 五千 a few hundred 幾百 類似的數(shù)詞還有 thousand , million, 當(dāng)數(shù)詞前沒有具體數(shù)字時(shí) , 數(shù)詞用復(fù)數(shù)形式 , 后面接短語 , 再加可數(shù)名詞的復(fù)數(shù)形式。 當(dāng)這類數(shù)詞前面有具體的數(shù)字時(shí) , 數(shù)詞不能用復(fù)數(shù)形式。 2. It takes / took / will take sb. some time to do sth. 某人花了 ?? 時(shí)間做某事 (時(shí)態(tài)根據(jù)具體情況決定) It takes me an hour to get to my office. It took me quite a long time to understand. 3. hundreds of 許多;大量 hundred 數(shù)詞 , “百” , 用于 a、 one或含有數(shù)量意義的詞之后 , 其后接可數(shù)名詞的復(fù)數(shù)形式。Unit 7 Will people have robots? Period 3 Section B (1a2e) A: What will you be in 10 years? B: I will be a … A: Where will you work? B: I will work in … I’ll be a puter programmer. I’ll be an astronaut. Transportation ro