Unit6知识点 人教版英语八年级上册

这是一份Unit6知识点 人教版英语八年级上册，共6页。
Unit 6 I’m going to study computer scienceWhat do you want to be when you grow up?When(conj)当...的时候 引导时间状语从句Eg:When I leave,the telephone rings. When I got home,he was watching TV.注意：when作连词时，如果主句的谓语动词是过去时，从句也要用过去时；如果主句的谓语动词是一般将来时，从句要用一般现在时Eg:I was quite thin when I was ten. I will write to you when I come back.辨析：when与while(1)引导时间状语从句when可以和延续性动词连用，也可以和短暂性动词连用；而while只能与延续性动词连用Eg:Sorry,I was out when you called me. When the teacher comes in,we are talking. Strike while/when the iron is hot.趁热打铁（is为延续性动词，表示状态）作为并列连词when表示：在那时 while表示：对照 （而、却）Eg:The children are playing in the street when they see an old man.孩子们正在街上玩这时他们看见了一个老人。 He is good at math while his brother isn’t.表示职业的名词后缀后缀ist artist艺术家 pianist钢琴家 violinist小提琴家 chemist化学家 physicist物理学家 scientist科学家 novelist小说家 terrorist恐怖分子后缀er teacher singer player worker reporter farmer banker银行家 seller卖方 后缀r driver writer speaker发言者 baker面包师后缀or actor visitor inventor发明家 editor编辑 sailor海员后缀man/woman postman邮递员 fisherman渔夫 policewoman女警察后缀ian musician音乐家 politician政治家 historian历史学家 magician后缀ar beg-beggar乞丐 lie-liar说谎者；骗子Well, I’m going to keep on writing stories,of course.Keep on doing sth.不断地做某事Eg:He keeps on asking questions in the class.他在课堂上不停地问问题。辨析：keep on doing与keep doing keep on doing：不断地做某事（表示动作的反复）keep doing:保持做...（表示动作或状态的持续）Eg:He kept standing here for an hour....,but I’m not sure about that.be sure的用法如下：be sure（后不接任何成分）肯定的；确定的Eg：Are you sure?be sure to do sth.务必做某事（多用于祈使句）Eg:Be sure to check your paper after you finish it.be sure of /about (doing) sth.对...有把握 (用法同dream)Eg:I’m not sure of /about math. She is sure of/about driving the car by herself.be sure（that）+从句 确定...Eg:I’m not sure (that)she will come.Make sure的用法make sure of/about 弄清楚Eg：We must make sure of/about the time of test.make sure to do sth.务必；一定（表示说话人的强烈要求或建议,多用于祈使句）Eg:Make sure to turn off the lights before you leave the classroom.make sure+特殊疑问词+不定式 即:make sure what/how/when...to do sth.Eg:Could you make sure how to use the tools? Have you made sure when to go fishing with your father?make sure (that)+从句Eg:She made sure that she had turned off all the lights.I’m going to write articles and send them to magazines and newspaper.send:(v)寄；发送；派遣；打发 （send-sent-sent）send的用法：send sth.发送某物 Eg:You’d better send the letter on time.send sb.sth.=send sth.to sb.把某物送给某人 Eg:She sent me a nice book. She sent a nice book to me.send sb.to do sth.派遣某人去做某事Eg:The teacher sends his student to get him a textbook.send sb.to +地点 派某人去某地Eg:Tom’s boss sent him to America.接双宾的动词，根据间接宾语位置转换时所用介词的不同，可以分为两类用to表示动作的目标方向eg:show give bring pass teach tell lend(借出)用for表示动作为谁而做Eg：make cook buy get(取) choose book(预定)/order(订购) prepare sing 含有send的短语send out派遣；发送 send in呈报；提出 send for召唤；派人去拿 send back送回 send off 驱逐 send up 发射；使上升When we make resolutions at the beginning of the year... resolution：(n)决心make resolutions to do sth.下决心做某事 同义短语：decide to do sth./ make a decision to do sth.决定做某事beginning(n)开头；开端常用短语：at the beginning of...在...开始 in the beginning起初；一开始(=at first)from beginnin g to end 从头到尾辨析：start与begin大多数情况下可以通用 start/begin to do/doing sth.开始做某事Eg:When did you start/begin learning English?start可用来表示企业、机构、设施的创建、创办、开办 (相当于set up、build、found)Eg:The company was started by the two brothers.For this reason,some people say the best resolution is to have no resolutions!to have no resolutions动词不定式短语作表语 No+复数名词= not any +复数名词 No+单数名词=not a(n)+单数名词 No+不可数名词=not any +不可数名词Eg：They have no apples. =They don’t have any apples.He has no apple. =He doesn’t have an apple.I have no time to go out. = I don’t have any time to go out.Were you able to keep them?be able to 能够做某事Eg：He will be able to become an English teacher.辨析：be able to与can 表示有某种能力时，可以互换 (can表示原本具有的某种能力；be able to通过努力获得的某种能力)Eg：He is able to speak French.He can speak French.can只用于现在时和过去时 be able to 可用于多种时态Eg:Can you sing? Could you lend me your eraser? He will be able to tell you the truth soon.(将来时)I haven’t been able to sleep well recently.(现在完成时)can 可以表示 “许可、允许、可能性”Eg:---Can I sit here? ---Yes,please. ---Can it be true? ---No,it can’t be true.表示成功地做了某事，只能用was/were able to (相当于manage to do sth.)Eg:He was able to swim to the bank after the boat turned over.They were able to win the first prize in the end.can不能再与其他的情态动词连用；be able to可与其他的情态动词连用Eg： He will can come here tomorrow.(错误) He will come here tomorrow.（正确） You might be able to persuade him.你也许能够说服他。These are about making yourself a better person.make(使役动词)使 后接do/n/adj作宾补 即：make+宾语+n/adjEg:They made Tony their monitor. She often makes me happy. The good news makes her feel happy.Most of the time, we make promises to other people.promise(n)许诺；希望短语：make promises/make a promise 许下诺言；做出许诺 keep/break a promise信守/违背诺言 Eg:If you make a promise,you should keep it.promise(v) 承诺 其用法如下promise to do sth.答应做某事Eg:I promise to do just as you say.promise sb.sth. 答应某人某事Eg:He promises her a nice present for her birthday.promise that+从句Eg:They promise that they will return all the books by Friday.11.Many resolutions have to do with self-improvement.许多决心和自我提高有关have to do with关于；与...有关系 (相当于have something to do with)Eg:Does he have something to do with the matter?have nothing to do with与...没有关系Eg:Tom has nothing to do with the matter. be going to构成的一般将来时定义：表示将要发生的动作或存在的状态，是一般将来时的一种表现形式时间标志词：tomorrow 、in+时间、next+时间用法：表示按计划、安排或规定要发生的动作、事情Eg：I’m going to visit Beijing next week.表示根据某种迹象将要发生的动作Eg：Look at the black clouds.It is going to rain.当谓语动词为表示位置移动的动词(come,go,leave,move,arrive,fly等)，要用be+doinng 来代替be going to do Eg:Miss Green is coming soon. We are leaving for Guangzhou tomorrow.