grey: n.灰色 adj.灰色的
III. Sentence Patterns句型:
祈使句:表示请求、命令的句子是祈使句,它的主语是you,通常不说出。 1. 祈使句的肯定结构:(1)Stop! 停!(2)Be careful! 小心!(3)Give it to me. 把它给我。(4)Colour the trees green. 把这些树涂成绿色。
2. 祈使句的否定结构:(1)Don’t move! 别动!(2)Don’t be late. 别迟到。(3)Don’t smoke here. 不要在这里吸烟。 3. 谓语动词是Let的结构:(1)Let’s start work now. 咱们现在开始工作吧。(2)Let him do it. 让他做吧。 IV. Grammar语法:
Articles冠词:
英语中,冠词有三个,a,an和the。其中,a 和an 是不定冠词,the是定冠词。不定冠词a和an表示泛指,所指的是一个什么人或什么物,具有“一个”的意思,但不强调数量,用于第一次提到一个人或东西时。定冠词the表示特指,所指的人或事物是说话人和听话人都知道的。例如:I have a book. The book is new.我有一本书,这本书是新的。I can see a kite. The kite is in the sky.我能看到一只风筝,这只风筝在天上。
有些情况下可以不用冠词:(1)泛指的复数名词前不用冠词,如Those are lights.那些是灯。(2)不可数名词用于泛指时不用冠词,如This is Brazilian coffee.这是巴西咖啡。(3)专有名词前一般不用冠词,如China中国,但是由普通名词构成的专有名词前一般要加定冠词the,如the Great Wall长城。(4)在某些固定短语中不加冠词,如go to work去上班,after class课后,by bus乘巴士。
练习:用a、an、the或×填空。
1. There is ____________ computer on ____________ desk. 2. She has ____________ lunch at 12:00 every day.
3. These are ____________ desks and ____________ chairs. 4. That is ____________ pure water.
5. There are three windows in ____________ wall. 6. There is ____________ man at ____________ door.
7. I like playing ____________ basketball.
8. There are many lights in ____________ classroom.
9. We are going to ____________ Summer Palace this weekend. 10. When do you go to ____________ bed every day?
11. This is ____________ pen. ____________ pen is mine. 12. He lives in ____________ Beijing.