- Unit 1 Can you play the guitar?
- Section A
- Section B
- Unit 2 What time do you go to school?
- Section A
- Section B
- Unit 3 How do you get to school?
- Section A
- Section B
- Unit 4 Don't eat in class.
- Section A
- Section B
- Unit 5 Why do you like pandas?
- Section A
- Section B
- Unit 6 I'm watching TV.
- Section A
- Section B
- Unit 7 It's raining!
- Section A
- Section B
- Unit 8 Is there a post office near here?
- Section A
- Section B
- Unit 9 What does he look like?
- Section A
- Section B
- Unit 10 I'd like some noodles.
- Section A
- Section B
- Unit 11 How was your school trip?
- Section A
- Section B
- Unit 12 What did you do last weekend?
- Section A
- Section B
《Section B》语法解析
现在进行时与一般现在时的区别
1.用法不同
① 一般现在时一般用来表示人或物经常性或习惯性的动作或状态,也可以用来表示人或物现在的状态。
② 现在进行时一般用来表示现在(说话的瞬间)正在发生或进行的动作或者用来表示现阶段正在进行或发生的动作。
● Shegoesto school by bike every day.
她每天骑自行车上学。(经常性的动作)
● Theyare watchingTV now.
他们现在正在看电视。(正在进行的动作)
2.谓语动词不同
① 一般现在时的谓语动词为:系动词(am/is/are)或实义动词。
② 现在进行时的谓语动词的形式为:助动词be(am/is/are)+动词的-ing形式。
这两种时态的否定句和一般疑问句的变法也不同。在含有一般现在时的句子中,含be动词的句子变否定句时直接在be动词后加not,变一般疑问句时则直接将be动词提前;含实义动词的句子变否定句和一般疑问句时必须借助助动词do或does。含有现在进行时的句子变否定句时直接在助动词be后面加not;其变一般疑问句时则要把助动词be提到句首。
● Shedoesn't goto school by bike. Shegoesto school by bus.
她不是骑自行车上学。她乘公共汽车上学。
● Sheisn't doingher homework now. Sheis watchingTV.
她现在没在做她的家庭作业。她正在看电视。
3.时间状语不同
① 一般现在时常与often,sometimes,always,usually 等频度副词和every morning/day/week,on Wednesday,on Sundays,in the morning/afternoon/evening 等时间状语连用。
② 现在进行时常与now,these days,at this moment等时间状语连用。句首有Look/Listen等提示语时,后面的句子也要用现在进行时。
● We oftengoshopping on Sundays.
我们经常在星期天去购物。
● Listen! Someoneis singingin the classroom.
听!有人正在教室里唱歌。