2021-2022学年人教版八年级英语下册Unit 2 I'll help to clean up the city parks.重点知识点

1、Unit2:Ill help to clean up the city park.Section A:知识点一：clean up的用法：打扫干净如果宾语是名词：可放在之间或者末尾是代词：只能在之间。例题：On Earth Day, many people in our city go to Peoples Park to .A. Clean up it B.clean them up C.clean it up D.clean it up知识点二：cheer up使变得高兴；振奋起来如果宾语是名词：可放在之间或者末尾是代词：只能在之间。例题：John isnt happy today.Lets

2、 go and . Good idea.A. cheer him up B.cheer up him C.to cheer up知识点三：give out散发，分发如果宾语是名词：可放在之间或者末尾是代词：只能在之间。give的其他短语Give away 赠送 give up 放弃 give back 归还 give off 发出 放出Give sb sth给某人某物 give in屈服例题：Could you please teach me how to red envelopes on WeChat?Sure. Let me show you.A.give out B.give back

3、C.give way知识点四：put offput off意为“推迟”。The concert was put off because of the heavy rain.演唱会因为大雨而被推迟了。拓展：常见的put短语有：put off推迟；延迟穿上；put on展出；上演 戴上put away收起来put out熄灭；扑灭put up with容忍put up搭建；建造 张贴 提升例4They the date of the meeting because of the bad weather.A.put offB.gave awayC.put onD.turn down知识点五used

4、to的用法used to表示“过去常常；以前经常”，后跟动词原形，用来描述过去经常发生的动作或存在的状态。He used to play the guitar.他以前经常弹吉他。used to在变否定句或一般疑问句时常借助动词did。具体如下：肯定句主语+used to+动词原形.否定句主语+didn't use to+动词原形.一般疑问句Did+主语+use to+动词原形.？肯定答语Yes,主语+did否定答语No,主语+didn't.辨析used to和be used to词组含义used to用法后跟动词原形。用于描述过去经常发生的动作或存在的：态，该动作或状态现在已经

5、不再继续be used to习惯后跟名词、代词或动名词例5(2021辽宁鞍山海城西部集团期中)I used to TV on Saturday morning,but now I am used to books in the city library.A.watched;readingB.watch;readC.watching;readD.watch;reading答案D解析句意：我过去常常在星期六早上看电视，但现我习惯在市图书馆看书。used to do sth.意为“过去经常做事”，排除A和C;be used to doing sth.意为“习惯做某事故选D。知识点六“疑问词+不定式”

6、的用法how to care for animals属于“疑问词+不定式”的结构该结构在句中作介词about的宾语。该结构还可以转换为语从句how I can care for animals.当“疑问词+不定式“结在句中作宾语时，通常可以转换为宾语从句。We don't know how to use the camera.=We don't know how we can use the camera.我们不知道怎样使用这个照相机。例6(2021湖南岳阳长岭中学第一次月考)一11simportant for us to knowall the subjects.-Yeah,

7、group work is my favorite.A.how to studyB.when to studyC.what to study答案A解析句意：对于我们来说，知道如何学习所有课程是重要的。是的，小组讨论是我的最爱。根据答语中的“group work is my favorite”可知，上句指学习方式，应用“how+不定式”结构。故选A。知识点七care for的用法意为“照顾；非常喜欢”。She doesn't care for skating.她不喜欢滑冰。The sick must be cared for.病人应被照料。拓展careful adj.小心的careless adj.粗心的派生词carefully adv.小心地carelessly adu.粗心地care的延伸care for照顾；喜欢care about关心；在意短语take care小心；当心take care of照顾；照料例7(2021辽宁鞍山铁东区期中)一Could you tell me how the baby?-Of course.A.looking afterB.to care forC.to