牛津译林版英语8A Unit5 Grammar课件

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1、A Using may for possibility,Grammar,1. If we do nothing, soon there may be none left!,2. As a result, pandas may not have a place to live or food to eat.,may 表示猜测，可能性（只用于肯定句 或否定句中）,may not do sth 意为“可能不”,We use may to say that something is possible.,Millie is in the zoo. She is telling Sandy on the

2、phone about what happens. Complete what Millie says using may with the words in brackets.,In the zoo,1. The elephant is going towards the water.It _ (need) a bath.,may need,学科网,2. The little boy is crying when he saw the tigers.He _ (be) afraid of them. 3. I cannot go near the lions and tigers.They

3、_ (hurt) me. 4. The baby panda is not drinking its mums milk.It _ (not be) hungry.,may be,may hurt,may not be,5. The monkeys are jumping around.They _ (be playing) with each other. 6. The horse is standing with its eyes closed.It _ (be sleeping).,may be playing,may be sleeping,For example,1. The sto

4、ry may (or may not) be true.,2. That cant be true. 那不可能是真的。That may not be true. 那可能不是真的。,can和may都可表示可能性，但can通常 用于否定句和疑问句中。,May表示“可能”时，相当于perhaps, maybe,1. He may not be at home now.,=Maybe/ Perhaps he isnt at home now.,2. The baby may have something nice to eat.,=Maybe the baby has something nice t

5、o eat.,1. When did XiWang start to go outside for the first time? 2. What did XiWang begin to do when she was six months old?,Talk about pandas,动词不定式: to-infinitives,We can use verbs and to-infinitives together.,verbs +,Translate some phrases:,想要做某事 希望做某事 计划做某事 同意做某事 决定做某事 学习做某事 选择做某事 准备做某事,want to

6、do sth. hope to do sth. plan to do sth. agree to do sth. decide to do sth. learn to do sth. choose to do sth. prepare to do sth.,动词不定式: verbs + to-infinitives,agree to do sth. 同意干 begin to do sth. 开始干 decide to do sth 决定干 fail to do sth. 做某事失败 forget to do sth. 忘记干 hope to do sth 希望干,在英语中某些及物动词后接动词不

7、定式作宾语, 常用的此类动词有：,learn to do sth 学着干 plan to do sth 计划干 prepare to do sth. 准备干 remember to do. 记得干 try to do sth 尽力干 want to do. 想要干,more verbs + to do （作宾语）: need promise (承诺) seem start pretend（假装） refuse（拒绝） would like cant wait try ones best,ask sb. to do tell sb. to do invite sb. to do want sb.

8、 to do would like sb. to do teach sb. to do advise sb. to do,2. to do 做宾语补足语,hear sb. do see sb. do watch sb. do make sb. do let sb. do help sb. do,但有的动词后跟不带to的不定式作宾补，如:,remember to do sth. 记得去做某事remember doing sth. 记得做过某事,区别,forget to do sth. 忘记去做某事forget doing sth. 忘记做过某事,e.g. Tom, 记得课后和我们一起打篮球。 T

9、om, remember to play basketball with us after class. 我记得上个月写了一封信给你。 I remembered writing a letter to you last month.,stop to do sth. 停下(正在做的)事去做 (另一件)事 stop doing sth. 停止做(正在做的)事,e.g. 让我们停下来休息一下。Lets stop to have a rest.不要说话， 老师来了。Stop talking. The teacher is coming.,区别,1. enjoy Kitty enjoys dancing

10、. let The teacher lets him read loudly. 3. practise You should practise speaking often.,We dont use to after these verbs.,4. make The joke makes me laugh and laugh. 5. help She often helps me (to) carry water. 6. finish You must finish doing your homework on time.,1 Stop to talk, and get ready for t

11、he Maths class. 2 He often hears the girl sings in the next room. 3 It takes him half an hour getting there by bus.,talking,sing,to get,Correction,4 You must finish to do your homework when I come back from office. 5 Let me to help you to learn English.,doing,Finish the exercise on page 62 More about wild animals.,Homework,