現(xiàn)在進行時(The Present Continuous Tense)
1. 形式:
1) 現(xiàn)在進行時由助動詞am, is, are+現(xiàn)在分詞構(gòu)成。第*人稱單數(shù)用am,第三人稱單數(shù)用is,其他人稱一律用are。
2) 現(xiàn)在分詞由動詞原形+ing構(gòu)成,如learning, making, stopping等。
2. 基本用法
4) 用在此刻正在進行的動作。
e.g. What are you doing here?
5) 表示現(xiàn)階段正在進行的動作,而此刻并不一定在進行。
e.g. We are doing an experiment this month..我們這個月在做一個實驗(說話時不一定在做實驗)。
3. 現(xiàn)在進行時態(tài)的否定結(jié)構(gòu):
e.g. We are doing an experiment this month. – We are not…
4. 現(xiàn)在進行時態(tài)的疑問句結(jié)構(gòu):
e.g. We are doing an experiment this month. – Are you doing…
練習與體會:
(綜合A/B級:Importance of services)
These people argue that manufacturing jobs, which have been the economic foundation of America’s middle class, are vanishing. They claim that factory workers are being replaced with a host of low-wage earners.
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