八年级英语下unit6单元知识总结新目标

1、Unit 6How long have you been collecting shells?一.【单元目标】 单词与短语collectmarathon skate pair since raise several stamp kite monsterglobe anyone store cake particularly collector common extra topic capitalthousand quite certain miss in fact 其实；实际上 run out of 用完；用尽by the way 顺便；附带说说 be interested in 对感兴趣mo

2、re than 比多 make a list of 列清单thanks for doing sth. 感谢某人做了某事 think of / about sth. 想起某事目标句型：1. How long have you been doing? 2. Ive been doingsince3. How long did sb. do? 4. He / She did sth. for5. What do you collect? 6. When did you start?7. How many do you have? 8. What do you like to collect in t

3、he future?9. What is the most common/unusual/interesting hobby?语法 现在完成进行时二.【重难点分析】1. 现在完成进行时构成：肯定句：主语 + have / has been + doing 否定句：主语+have/has+not+been+doing 一般疑问句：Have/Has+主语+been+doing?现在完成进行时表达“某一动作从过去开始一直持续到现在，有可能还要持续下去”，现在完成进行时的句子中多用延续性动词，如：live，learn，study，work等。(1)I have been learning Englis

4、h for ten years. 我学英语已经十年了。(2)She has been skating for four hours. 到现在为止她滑冰已经有四个小时了。(3)I have been collecting stamps since I was ten years old. 我从十岁起就一直在集邮。在这几个句子中，have和has是助动词，疑问形式需把助动词提前，否定形式在have或has后面加not，have not和has not可以分别缩写成havent和hasnt，如： (1)Have you been doing your homework since this morn

5、ing? 从今天早晨起你就一直在写作业吧？(2)Has he been writing the letters to his friend? 他是一直在给他的朋友写信吗？(3)I havent been seeing films for a long time. 我有很长时间没有看电影了。 （表明没有看电影这个动作从过去一直持续到现在，还要继续持续下去。）2.现在完成进行时与现在完成时的区别：(1)现在完成时强调动作的完成，而现在完成进行时侧重的是动作的持续进行。 I have read a book about birds. （已经读完） I have been reading a book

6、 about birds.（一直都在读，现在还在读，有可能会继续读下去）(2)两种时态都有延续性， 但现在完成时往往只说明一个事实，一种影响或结果，无感情色彩；现在完成进行时表示一个动作的延续、重复，有时有一定的感情色彩。 She has been singing all the day. 她都唱了一整天了。（抱怨、厌烦）三.【重点词汇】1. since的用法：(1)conj(引导时间状语从句，从句中常用过去时，主句用一般时态或完成时)自从以来；以后It was years since l had seen her自从我见到她(到那时)又过去好几年了。his just a week since

7、 we arrived here我们到这儿刚好有一周了。(引起原因状语从句，通常置于句首)既然；因为Since he says so，it must be true既然他这么说，那一定是真的。(2)prep 自以来 I have lived here since childhood自小我就住在这儿。 He hasn't been home sincel9931993年以来他还没有回过家。(3)adv(与完成时态连用)从那以后；后来以前He left the city in 1985 and has returned only once since他1985年离开这座城市，自那以后只回来

8、过一次。(4)构成短语：ever since 从那以后(一直) long since 很久以前；早已2. since，from和for(1)from是介词，后接名词、动名词，表示事情的开始点，以from短语作状语时，句中的谓语动词可用一般现在、过去和将来时，如： The movie is on from 8:00 p.m. to 10:00 p.m. 这个电影在晚上8点到10点上映。 They chatted at the meeting from beginning to end他们在会议上自始至终都在聊天。(2)since则为介词或从属连接词，其后接名词、动名词或从句，表示从某一特定时间起

9、直至现在或过去某一特定时间为止，依然继续着的事情的开始点，在以此为时间状语的句子中，谓语动词常用完成时。 Many things have happened since they came here自他们来这儿以后，发生了许多事情。 The teacher said that John had made great progress since last semester从上个学期以来约翰取得了很大的进步。(3)for 是介词，后接名词，可以用来计算持续的时间，表示事情从开始到结束所持续的时间，谓语动词常用过去时或完成时，for与一般现在时连用，表示时间一直持续到将来。5 / 5文档可自由编辑

10、打印The meeting lasted for hours. 会议持续了几个小时。I studied the piano for three years. 我学过三年钢琴。I've known her for five years. 我认识她已经五年了。How long are you here for?你在这里要待到什么时候?3. favorite 作名词，指“最爱的物品”，favorite也可作形容词，作形容词比较级和最高级形式。 My favorite food is dumpling我最喜欢的食物是饺子。4. stop表示“停止，结束，阻止”The light turned

11、redI have to stop 红灯亮了，我不得不停下来。(1)stop作名词，意为“车站，站点”。I get off at the next bus stop我在下一站下车。(2)stop作动词，意为“停止”，常用于stop doing sth.结构中，表示“停止做某事”，指停止正在做的事。The students stop talking学生停止了讲话。(动名词talking作宾语)(3)stop to do sth. 则表示“停下来去做某事”，指停止原来的事去做另外一件事。The students stop to talk学生们停下来(开始)讲话。(不定式to talk作目的状语)W

12、e should stop to have a rest我们应该停下来休息一会儿。(4)stop sb.(from)doing sth. 表示“叫某人停止做某事，阻止某人做某事”。What can stop me(my)going? 有什么能阻止我去呢?Nothing shall stop us from studying什么都不能阻止我们学习。5. have to do sth. 表示“不得不做某事”，指客观条件的“不得不”I have to finish the work by myself 我不得不自己完成这项工作。6. run out of 意为“从地方跑出来；用光” Class is

13、 overThe students run out of the classroom 下课了，学生们从教室里冲了出来。四.【课文解析】1. How long have you been in class today? 你今天上了多长时间的课？(或你在课堂多长时间？)(1)how long “多长”或“多长时间”。对长度或时间段提问。- How long have you learned English? 你学英语多长时间了?- For two years. 两年了。(2)in class 在上课；在课堂上，其反义词为out of class “在课外”。We should read more

14、books out of class. 我们在课外应该多读些书。I have been in class for one hour. 我上了一个小时的课。(3)现在完成时表示过去发生的动作对现在造成的影响。I have seen the film many times这部电影我已看过多次。(已经非常了解这部电影)表示过去某一时间开始一直延续到现在的动作。I have lived here since 2001自从2001年以来，我一直住在这儿。(“住”这动作延续到现在)构成：“havehas+过去分词”构成。-Where is Jim and Mike? 吉姆和迈克在哪儿?-They have

15、 gone to the Great Wall他们去游长城了。2. Alison was the first one to start艾丽森是第一个开始(滑)的。(1)“be the first / second+n. + to do”表示“是第一/ 二个做某事的”。He is the last one to leave here. 他是最后个离开这里的。She was the first one to get to the school她是第一个到校的。(2)to start在这里是动词不定式作定语。3. I'd like to collect stamps because they

16、 are interesting我喜欢集邮，因为它们特别有趣。(1)would like to do表示“想要做某事”。Would you like to come to join my birthday party? 你愿意来参加我的生日晚会吗?(2)collect意为“收集，搜集”，常用作及物动词，后跟名词或代词作宾语。I like collecting all kinds Of Chinese stamps very much我非常喜欢收集各种中国邮票。4Thanks for sending me the snow globe of the monster 非常感谢您送我怪兽雪花球形玻璃

17、器。(1)thanks for相当于thank you for意为“为感谢你”，后多跟名词短语或动名词。Thanks for your last letter. 谢谢你的上封来信。(2)send sb. Sth.相当于send sth. to sb. 表示“送给某人某物”He sent me a present for my birthday.He sent a present to me for my birthday我过生日他送了我一件礼物。5. By the way，what's your hobby? 顺便提一下，你的个人爱好是什么?(1)这是一个特殊疑问句的简单句，by th

18、e way在句中作插入语。介词短语by the way意思是“且说，顺便提一下，还有”，常用来介绍一般性的话题，或在脑子里突然想起的事情。We shall expect you，by the way，dinner will be at eight我们正在等着你，还有晚饭是八点开。I was reading when the earthquake occurred，by the way，it was “The Last Day of Pompeii”地震发生时我在看书，顺便提一下，我看的是“庞培城的末日”。By the way，have you seen her lately? 顺便问一下，你近

19、来见过她吗?(2)名词hobby表示“爱好”是可数名词。Your hobby is reading 你的爱好是看书。One of my hobbies is astronomy 我的爱好之一是天文学。Plenty of men are excellent cooks as a hobby 很多男人菜做得好，只是作为一种爱好。6It made me think about differences in food cultures between China and western countries它使我想起了中国和西方国家在饮食文化方面的差异。(1)make 使役动词“使；让”，后面接不定式作

20、宾语补足语时，不带to，类似的还有let和have。He made the students laugh他把同学们逗笑了。The children must be made to clean their own room 必须叫孩子们打扫自己的房间。Aunt Li tried to make us stay for supper. 李大婶要留我们吃晚饭。(2)think about 考虑；回想，想起；认为think about a plan 考虑一项计划I always think about her when it snows每当下雪的时候，我总是想起她。What do you think

21、about the film last night? 你认为昨晚的电影怎么样?He was thinking about the time he spent in the army他正在回想他在部队度过的日子。We need to think about the plan我们需要考虑一下这个计划。(3)介词between表示在二者之间There is a fence between his garden and our garden 在他的花园和我们的花园之间有一道栅栏。You're to sit between Moira and me 你坐在莫伊娜和我之间。五.【词语辨析】1. e

22、very和each(1)each一定数目中的“每一个”；“个别”意义较重，表示各有不同，更强调个人或个别。Each one has his weakness 每人都有每人的弱点。(2)every数目不确定的许多人或物中间的“每一个”；“总合”意义较重，表示“大家一致”。Every one of us is here 我们都到了。(3)each可作主语、同位语、定语和状语，而every只能作定语。2. interest，interesting与interested(1)interest作名词，意为“兴趣，趣味”，用作动词时指“使(人)产生兴趣”。He shows an interest in m

23、usic他对音乐感兴趣。 What you said interests me你的话引起了我的兴趣。(2)interesting作形容词，指“有趣的，引起兴趣的”，可作表语或定语，指物或人本身能引起兴趣。The film is very interesting 电影非常有趣。He is an interesting man 他是一个有趣的人。(3)interested是由动词interest加-ed构成的形容词。意为“感兴趣的”，其主语一般是人，常用于begetbecome interested in结构中，表示“对感兴趣”。When he was only a child，he got in

24、terested in science当他还是个孩子时，就对科学产生了兴趣。3. how long，how often 与 how soon(1)how long 的意思是“有多长”，用来提问有多长时间，答语通常是more than two weeks 等表示一段时间的话。-How long are you going to stay here?你打算在这里待多久?-Five days 5天。-How long did he live in China? 他在中国住了多长时间?-More than two years 两年多。(2)how often的意思是“多长时间一次”，用来提问在某一特定

25、的时间内进行某个动作的次数，答语通常是never，sometimes，quite often，usually，three times a year等表示频度的副词或短语。-How often do you go to the library? 你多长时间去一次图书馆?-Once a day 一天一次。(3)how soon用来询问“需要多长时间能，过多久”，谓语动词多用终止性动词，即某一动作要花多长时间才能完成或发生，常与将来时连用，答语常用in a weekmonthyear等。-How soon can you finish the work?你完成那项工作还要多久?-May be in

26、three days大概3天后。-How soon will he get here?他到这儿需要多久?-In half an hour半小时。4. have与musthave to与must都有“必须”的意思，但有其不同之处：(1)have to有时态和人称变化，带有客观因素，意思是“不得不”；must无时态和人称变化，后面接不带to的不定式，带有主观因素，意思是“必须，一定”。I have to go nowIt's dark 我必须得走了。天已黑了。I must go 我得走了。(2)must not表示“不许，一定不能”；don't have to表示“不必”。You

27、mustn't go now 你现在不许走。You don't have to go so early 你不必走那么早。(3)Must I?的否定回答是No，you needn't或No，you don't have to-Must I stay here now? 我必须留在这吗?-NO，you needn'tyou don't have to 不，你不必。5. fairly与ratherfairly与rather同义但用法不同：fairly一般指(褒义的)理想的情形，rather一般指(贬义的)不太理想的情形。例如：The weather i

28、s fairly fine today今天的天气相当好。The weather was rather bad yesterday昨天的天气相当不好。It is a fairly easy question这是一个相当容易的问题。(容易而适当)It is a rather easy question这是一个相当容易的问题。(大容易了而不适当)Unit 6How long have you been collecting shells?补充材料1. Each 的具体用法：1. adj.各个的；各自的；每一个的。置于单数可数名词前。Each car has a steering wheel. 每辆车

29、都有方向盘。My uncle gave a present to each one of us. 2. pron. 各个；各自。谓语动词用单数形式。Each has his own task.每个人都有自己的工作Each of the students broughta a dictionary. 学生各自带词典来。3. room 做空间讲时，是不可数名词。Is there any room for me in the car? 车上还有座位让我坐吗？There was no room to turn around in the narrow road. 那条狭窄的道路没有转弯的空间。4 Teach 的用法：1. teach sb. sth. = teach sth. to sb. She taught me music last year.= She taught music to me last year.2. teach + doin