最新人教版八年级英语下册各单元语法点汇总Unit 1 What’s the matter一、询问某人的健康问运及遭到麻烦的表达方法(1)询问某人患了何种疾病或遇到了何种麻烦时，常用以下几种结构来表达： What’s the matter (with sb．)怎么了？ What’s wrong (with sb．)怎么了？What’s the trouble (with sb．)出什么事了？ What happened (to sb．)发生了什么事？ Are you OK你没事吧？Is there anything wrong with sb.？某人有什么事吗？(2)要表达身体疼痛或不舒服，可用以下结构：①某人+have/has+病症．The twins have colds．双胞胎感冒了。
某人+have/has+a+headache/toothache/stomachache/backache /earache. She had a stomachache last night．她昨晚肚子痛。
③某人+have/has+a+sore+发病部位． He has a sore throat．他喉咙痛。
④某人+hurt(s)+身体部位或反身代词． He hurt his leg.他的腿受伤了。
⑤某部位+hurt(s).My head hurts badly．我头痛得厉害。
⑥某人+have/has+a pain+in one’s+身体部位， I havea pain in my chest．我胸口痛。
⑦(There is)something wrong with one’s+身体部位． There is something wrong with my right eye．．我的右眼有毛病。
⑧其他表达方式She has a heart trouble．她有心脏病。
He got hit on the head他头部受到了撞击。
She cut her finger．她割破手指了。
二情态动词should的用法1．Should为情态动词，意为“应该；应当”，否定式为shouldn’t，其后接动词原形，无人称和数的变化。
常用来表示征询意见、建议、劝告、要求或义务等。
You should drink hot water with honey．你应该喝加有蜂蜜的开水。
He should put his head back他应该把头后仰。
We should try our best to help him.我们应当尽力去帮助他。
You shouldn‘t watch TV.你不应该看电视。
2．Should用于主语为第一人称的疑问句，表示征询意见。
Should I put some medicine on it我应当给它敷上药吗？ Should we tell her about it我们应该告诉她这件事吗？【拓展】在英语中，表示建议的说法有很多，而且都是中考考查的重点。
主要结构有：①Would you like (to do) sth．？你想要／愿意某事吗？Would you like to play basketball with me你想要和我一起打篮球吗？②Shall I/we do sth 我／我们做好吗？Shall we go to the zoo tomorrow明天我们去动物园，好吗？③Why not do sth 为什么不呢？Why not join us为什么不加入到我们当中来呢？④How/What about doing sth 做某事怎么样？ How about going swimming去游泳怎么样？⑤Let’s do sth 让我们做吧。
Let’s go home．咱们回家吧。
⑥You’d better (not) do sth你最好要做某事。
You’d better not go there alone．你最好不要一个人去那儿。
Unit 2 I'll help clean up the city parks动词不定式A. 作主语——为避免句子的头重脚轻，常用it作为形式主语，而真正的主语动词不定式后置。
常用句型：It +be+adj./n.+(for/of sb.) to do sth./It takes sb. some time to do sth.B. 作宾语——动词want, decide, hope, ask, agree, choose, learn, plan, need, teach, prepare…常接动词不定式作宾语。
C. 作定语——常用于“have/has＋sth.＋to do”或“enough＋名＋to do”“It’s time to do sth.”等结构中。
D. 作宾语补足语——tell, ask, want, invite, teach, like, call等可接带to的动词不定式作宾语补足语，构成tell/ask/want /call/invite sb. to do sth.结构。
【注意】动词不定式作使役动词和感官动词的宾语补足语时应省去to：“一感(feel)，二听(listen to, hear)，三让(let, make, have,，四看(look at, see, watch, notice)，半帮助(help)”。
E. 动词不定式作状语主要用来修饰动词，表示目的，结果或原因。
为了强调目的，有时可以把动词不定式放在句首，或在不定式前加in order (to) 或so as (to) “为了，目的是”。
常用结构有too + adj./adv. + to do sth.等。
F. 固定句式中动词不定式的用法常见的形式有：had better (not) do sth./Would you like to do sth./Why not do sth./Would you please (not) do sth.等。
Unit 3 Could you please clean your roomCould you please...句型请求别人时通常用此句型，也可以说：Can you...please 情态动词could或can在这里均表示请求，在意思上无区别，但是用could在于其上显得更委婉、客气、诚恳。
在日常生活中常使用could you/I...若在句末加上please，则显得更礼貌。
Could you help me find my book,please你能帮我找到我的书吗？对could you/I...的问句作出肯定回答，常用“sure/certainly/of course”等；如果作否定回答，常用“sorry或oh,please don’t”。
一般不用no开头，用no显得语气生硬、不礼貌。
表示请求的句式：Would you like to do... Would you mind doing... Let’s do.... Shall I/we do... Please do...(祈使句前加please)提示：could you please...与could I Please...两种问句，前者是请求别人帮忙的句式，后者是有礼貌地向别人请求允许的交际用语。
试比较：Could you please help me请你帮我一下好吗？Could I please invite my friends to my birthday party,Mom 妈妈，我能邀请我的朋友参加我的生日聚会吗？Unit 4 Why don't you talk to your parents1.提建议向别人发出邀请，请求，建议，或征求某人的意见的其他表达方式：How /what about doing sth.“…怎么样？”You’d better (not) do something.“你最好做某事”Would you like sth …:“你想要某物Lets do sth… What should I do … ( should表示请求、征询对方意见)2.学会谈论问题和学会用why don't you…提建议向别人发出邀请，请求，建议，或征求某人的意见的表达方式：Why dont you do something =Why not do something 你为什么不做某事呢？来表示请求、征询对方意见３．until, so that ,although引导的状语从句：1)until：在带有till或until引导的时间状语从句里，如果主句用肯定式，其含义是“一直到……时”，谓语动词只能用延续性动词。
如果主句用否定式，其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。
Dont get off until the bus stops.2）so that引导目的状语从句例如：He studies hard so that he could work better in the future 3）although 的用法意思相当于though，引导让步状语从句。
引导的从句不能与并列连词but，and， so等连用，但可以和yet， still 等词连用。
例如：Although he was tired, he went on working.尽管他很累，但是他继续工作。
Unit 5 What were you doing when the rainstorm came？过去进行时1. 基本概念：过去进行时表示在过去某一时刻或一段时间内正在进行的动作。
这一特定的过去时间除有上下文暗示以外, 一般用时间状语来表示。
2. 结构 was / were ( not ) + 动词-ing 3. 句式肯定式：I/He/She/It was working. We/You/They/ were working. 否定式:I/He/She/It was not working.We/You/They/ were not working. 疑问式和简略回答:Was I working Yes, you were. No, you were not. Were you working Yes, I was. No, I was not. Was he/she/it working Yes, he/she/it was. No, he/she/it was not. Were we/you/they working Yes, you/we/they were. No, you/we/they were not. 注： 1) was not常缩略为wasn’t; were not常缩略为weren’t。