Unit 6 A field trip

一、基本句型:

1.询问某人正在做什么:What + be动词+人物+V-ing.

---- What is Mike doing?

---- He is watching insects.

2.询问某人是不是正在做某事:be动词+人物+V-ing?

---- Are they catching butterflies?

---- Yes, they are. / No, they aren’t.

3.What do ants like to eat? They like sweet food. 蚂蚁喜欢吃什么? 它们喜欢甜食。

4.That is interesting. 太有趣了。

5.Come and have a look at the ants. 过来看看这些蚂蚁。

6.Do an experiment on me, please. 请用我来做实验。

7.He is in the woods. 他在树林里。

8.Tell him we’re leaving. 告诉他我们要离开了。

9.She is running to us. 她正向我们跑来。

10.She is over there. 她在那里。 I am coming. 我来了。

二、知识延伸:

1.表示用什么做实验时,要用on,如:Do an experiment on me, please.

2.It is time to后面接动词原形,如:It is time to have lunch. 到吃午餐的时间了。

It is time for 后面接名词,如:It is time for English class. 到英语课时间了。

3.单复数:

butterfly—butterflies蝴蝶 leaf—leaves叶子 insect—insects昆虫

wood树木— woods树林 ant—ants蚂蚁

4. 可数名词变复数的变化规则:

①一般在词尾加s,如:books、bags、fruits、girls、pens、

②以th结尾的名词,词尾+s,如:months、mouths、paths

③以s、x、z、ch、sh结尾的名词加es,如classes、boxes、peaches、fishes

④以辅音字母加y结尾的名词,变y为i再+es,如:family-families 、baby-babies

以元音字母加y结尾的名词直接在词尾+s, S:ztXhif> 如: boy-boys、day-days、toy-toys

⑤以辅音+o结尾的名词,词尾+es ,如:tomato-tomatoes 、potato-potatoes

但某些却是+s,如:photo-photos、

以元音+o结尾的名词,词尾+s ,如:zoo-zoos、radio-radios、kangaroo-kangaroos

⑥以f、fe结尾的名词变f、fe为ves,如:wolf- wolves、life-lives、knife-knives

5. 目前已学的不可数名词有:

bread面包 rice米饭 honey蜂蜜 water水 juice果汁 meat肉

milk牛奶