期中备考-人教版八年级下册unit 4核心考点归纳(语法+短语+语句分析)

期中备考-人教版八年级下册unit 4核心考点总结归纳【语法】（一）连词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。

I stayed at school until my sister came to pick me up.Don’t get off until the bus stops.I didn’t sleep until my mom came back home.2）so that引导目的状语从句（为了，以便）例如：He studies hard so that he could work better in the future.为了在未来更好地工作，他努力学习。

3）although的用法意思相当于though（尽管，虽然），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。

（一）情态动词should和could1. 情态动词could可以用来表示请求或建议，具体用法如下：(1). 表示请求或者允许could表示请求或允许时，并不表示过去，只表示语气更加委婉，表示委婉的请求和陈述看法时，回答时用can。

Could I use your cell phone for a while?我能用一会儿你的手机吗？Could you tell me how I can get to the railway station?你能告诉我如何到达火车站吗？---Could you come to my birthday party?你可以来我的生日聚会吗？---Sorry, I can’t. I have to stay at home to look after my mother.对不起，不能，我不得不待在家照顾妈妈。

(2).表示建议情态动词could表示建议做某事，意为“可以”，语气比can更加委婉。

You could ask your doctor to check you over and do a few tests.你可以让你的医生给你做个全身检查并且做几项测验。

2. should 的用法（1）表示“应该，应当”。

（2）表示“可能，该（=will probably）”（3）表示粗暴地拒绝一项建议、要求或指示。

例如：He should work harder.他应该更努力工作。

His backpack should be in the classroom.他的背包应该还在教室里。

【短语】主动提出做…offer to do…拒绝做某事refuse to do有足够的睡眠get enough sleep允许某人去做某事allow sb. to do sth业余活动free time activities生某人的气be angry with重要的事a big deal总的做某事（厌烦等）be always doing sth. 提出某人的观点give one’s opinion笼罩hang over家庭成员family members和…交流communicate with…抄袭某人的作业copy one’s homework与某人竞争compete with sb.删除，删减cut out向某人解释…explain sth. to sb.和…打架get into a fight with和..相处得好get on with…在电话中on the phone依….的观点看in one’s opinion浏览、翻看look through学习应试技巧learn exam skills谈论关于…talk about成功解决、计算出work out【重点语句分析】You could tell him to turn down the TV.turn down意为“关小、调低”Could you please turn down the radio a little.Hope things work out.work out此处表示“成功地发展”，后常跟fine, well, badly等词，表示产生的结果如何；此外work out还可以表示“解决、制定出”。

Everything is working out well.The math problem is difficult for me to work out.I have worked out a new way of doing it.The Taylors are a typical American family.“the+姓氏的复数”表示一家人，用作主语时，谓语动词用复数形式。

The Greens live in Los Angeles.Why don’t you go to sleep earlier this evening?Why don’t you do sth.?意为“你为什么不做某事”，常用来向对方提出意见相当于Why not do sth.?。

肯定回答用Good idea./Good./All right./Sure.等；否定回答用No, I don’t think so./Sorry, I can’t.等。

---Why don’t you go sleeping with us?---Good idea.People shouldn’t push their kids so hard.push这里用作动词，表示“鞭策、敦促、推动”。

Don’t push yourself too hard.不要太过于逼迫自己。

My parents push me to learn English well.我父母督促我学好英语。

What’s wrong?What’s wrong?意为“怎么了？”，用来询问对方有什么问题或者不顺心的事，What’s wrong with...?意为“……怎么了？”，后接sb.或者sth.，用来询问某人或者某物怎么了？---What’s wrong with you, Jim?---I left my umbrella on the bus.【拓展】询问“怎么了？”，主要有以下几种句型：What’s wrong (with sb./sth.)?What’s the matter (with sb./sth.)?What’s the trouble (with sb./sth.)?What’s up (with sb./sth.)?My parents give me a lot of pressure about school.pressure此处用作不可数名词，意为“压力”，under pressure表示“压力之下”。

I feel I’m not able to do well with the pressure from my job.我觉得在工作压力下我无法做好。

I’m really tired because I studied until midnight last night.until表示“直到”和延续性动词连用，意为一个动作一直持续到某个点为止；同短暂性行动连用时，用于“not...until”结构中，表示“直到……才……”。

The boy waited in the school until his father came to pick him up.这个男孩一直在学校里等，直到他爸爸来接他。

The workers won’t leave until they get their salary (工资).直到工人们拿到工资，他们才会离开。

Secondly, why don’t you sit down and communicate with your brother?(1)secondly用作副词，意为“第二、其次”，常与firstly, thirdly或者lastly/finally 等表示顺序先后的词，表示列举某些事实。

Firstly, they are not efficient, and secondly, they are expensive to make.(2)communicate with sb.表示“与某人交流”People can communicate with each other freely on the Internet.They have a quick dinner, and then it’s time for homework.It’s time for sth.意为“该做某事了”，相当于It’s time to do sth.。

It’s time for lunch.=It’s time to have lunch.He always refuses to let me watch my favorite TV show.refuse表示“拒绝”时，后常接名词或者动词不定式作宾语。

The girl refused the offer from Oxford University.这个女孩拒绝了牛津大学的录取。

Most of the residents refused to move away from here.大多数居民拒绝从这儿搬走。

In my opinion, it is important for children/parents to...in one's opinion意为“依……看”，相当于according to sb.。

In their opinion, the meeting should be put off.在他们看来，会议应该被取消。

My cousins borrow my things without returning them.return此处用作及物动词，表示“归还”相当于give back，return sth. to sb.=return sb. sth.。

I’m going to return this book to the library.Dr. Alice says all these activities can cause a lot of stress for children.cause这里是及物动词，表示“引起、造成”cause sb. sth.相当于cause sth. for sb.。