八年级下册 Unit 3 what were you doing when the ufo arrived? 单元笔记
【重难点分析】 重难点分析】 一. 过去进行时 过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作, 常和表过去的时间 状语连用。 过去进行时的构成: 肯定形式:主语+was/were+V-ing 否定形式:主语+was not (wasn't)/were not (weren't)+V-ing 疑问形式:Was/Were+主语+V-ing。 基本用法: 基本用法
  1. 过去进行时表示过去某一段时间或某一时刻正在进行的动作 过去某一段时间或某一时刻正在进行的动作。 过去某一段时间或某一时刻正在进行的动作 常 与 之 连 用 的 时 间 状 语 有 : at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟 点钟+yesterday (last night / Sunday…),when sb. did sth 等 点钟 , 时间状语从句。 时间状语从句。 如: What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么? I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到玛丽是在三年前,当时她在一家无线电商店工作。 I was cooking when she knocked at the door. 她敲门时我正在做饭。
  2. when 后通常用表示暂短性动词, 后通常用表示暂短性动词, while 后通常用表示持续性动词 因此它所引导的状 后通常用表示持续性动词, 语从句中,谓语动词常用进行时态,如: When the car exploded I was walking past it.= While I was walking past the car it exploded.
  3.when 用作并列连词时,主句常用进行时态,从句则用一般过去时,表示主句动作发 生的过程中,另一个意想不到的动作发生了。如: I was walking in the street when someone called me. 我正在街上走时突然有人喊我。
  4. when 作并列连词, 表示“ (这时) 突然”之意时, 第一个并列分句用过去进行时, when 引导的并列分句用一般过去时。如: I was taking a walk when I met him. 我正在散步,突然遇见了他。 We were playing outside when it began to rain. 我们正在外边玩,这时下起雨来了。 之后的从句一般用:进行时态( 特点 :while 之后的从句一般用:进行时态(be+doing) ) When 之后的从句一般用:过去时态 之后的从句一般用: 【注:本特点不是 while 和 when 的全部用法,更多的用法会在以后的学习中见到】 的全部用法,更多的用法会在以后的学习中见到】 情态动词(Modal Verbs )Ⅱ 二. 情态动词 Ⅱ 情态动词: 用于表示“必须 必须”、 务必 务必” 情态动词:must 用于表示 必须 、“务必 引导的一般疑问句, 注:以 must 引导的一般疑问句,否定回答习惯上用 No,you needn’t 或 don't have to , ’ ③. Must I pay now? Yes,you must . No, you needn’t./No,you don’t have to. ’ ’ 三. 重点词汇
  1.cut v.切;剪;割 . . cut (one’s)hair 理发 Be careful.Don't cut yourself.小心,别切到自己。

  2.alien n.外星人 . . An alien got out of the UFO. 一个外星人从不明飞行物里出来。 v.登岸;登陆; n.陆地
  3.land v.登岸;登陆;降落 n.陆地 The plane will land in ten minutes.飞机将在十分钟后降落。 A UFO landed in the middle of the field.. 一个不明飞行物降落在田野中间。 conj. ……的时候 的时候; ……之时
  4.while conj.当……的时候;在……之时 While I danced, she sang.我跳舞,她唱歌。 While he was singing, I was playing baseball. 他当时在唱歌,而我在打棒球。
  5.right adv.正好;恰好 adv.正好; The accident happened right over there.事故正好发生在那里。 He lives right in the center of the city. 他恰好住在市中心。 adj.惊奇的;
  6.surprised adj.惊奇的;吃惊的 I was surprised that he was late for the party.我很惊讶他聚会居然迟到了。 She was surprised that I didn’t know about that. 她很吃惊我竟不知那件事。 注:ed 形容词用于修饰 Sb,而 ing 形容词用于修饰 sth 而 v.欺骗;
  7.kid v.欺骗;哄骗 I'm not kidding you.我没有骗你。 You’re kidding = No kidding. 别开玩笑了。 adv.到处;无论哪里(用于否定句和一般疑问句中)
  8.anywhere adv.到处;无论哪里(用于否定句和一般疑问句中) Did you go anywhere yesterday? 你昨天去没去过什么地方? They didn’t go anywhere the day before yesterday. 他们前日天哪里也没去 v.
  9.happen v.发生 A funny thing happened in the subway yesterday. 昨天地铁里发生了一件有趣的事。 What happened to him on that day? 那天他怎么了?(发生了什么事?) 注:happen 常用于以下两个结构: sth. happen to +名词 :发生于……身上 happen to do sth 碰巧做某事 如:She hoped nothing bad would happen to him.她希望不会有坏事发生在他身上。
  10. ……出去
  10.get out of 从……出去 She tried to get out of helping her mother.她尽量逃避帮助她的妈妈。 Tom got out of the lift and walked to the station. 汤姆走出电梯然后往车站走去。
  11. 跑开;迅速离开
  11.run away 跑开;迅速离开;逃走 The thief ran away when someone noticed him.当有人注意到他的时候,那个贼立刻逃 走了。
  12. 在诊所;
  12.at the doctor's 在诊所;在医院 I'm thinking of going to the tailor's.在表示诊所、店铺或某人的家时,经常用名词所有 在表示诊所、店铺或某人的家时, 在表示诊所 格的形式。 格的形式。 Mr. Cool’s = Mr. Cool’s clothes store at Jason’s = at Jason’s store She is staying at Mary's.她住在玛莉家。 I want to go to the tailor’s. 我想到裁缝店去一趟。 看见某人做(
  13. see sb. do sth. 看见某人做(过)某事
she saw the alien get out. 她看见外星人出来.
  14. 感叹句 感叹句是英语的一种重要的句型,用来表示人的强烈感情。一般说来,感叹句是由 what 或 how 引导,句末用感叹号. 感叹句结构为:What a/an + adj(形容词) + n(名词) +(主+谓) What +adj(形容词) +名词复数 + (主+谓) What +adj(形容词) +不可数名词 + (主+谓) How +adj/adv+ (主+谓)
四.词语辨析
  1、in front of 与 in(at) the front of in the front of 在……的前面 (表示“有距离的前面”,在一个参照物的前面) e.g.: There is a car in front of the house. 房子前日面有一辆车 in(at) the front of 在……的前头,前排(列)(在一个范围内的前面部位) eg. She sat in the front of the bus. 她坐在公交车的前排
  2、get out of 与 get into 是反义词 get into 走进,进入 eg. He get out of the car and get into the building.
  3、be amazing 与 be amazed be amazing 令人惊奇的(修饰事物的,指某事令人惊奇,比 surprising 更具意外性 e.g.:She has an amazing talent for music.她在音乐方面有惊人的才华。 Isn’t that amazing .那不很令人意外吗? be amazed (at sth./to do …/that 从句)(某人)对…(因…而)大感惊讶(指人作主语) eg. We were amazed at the news.=We were amazed to hear the news. 我们对这个消息感到非常惊讶.
  4、be surprising 与 be surprised be surprising 令人惊奇的(用法与 be amazing 一样,也是修饰事物的) e.g.:a surprising ending 一个令人惊奇的结局 be surprised (at sth./to do…/that 从句) (某人)对…(因…而)感到惊奇,用法与 be surprised 一样,也是人作主语。 eg. They were surprising that he was badly hurt in the audient. 他们很吃惊他在那次事故 中伤得很重。
  5、in a tree 与 on a tree eg. Are there any birds in the tree? 树上有些鸟吗? on a tree 在树上(指长在树上的东西) Look! There are many apples on the tree.
  6、my flight to New York 与 fly to New York 前者是一个名词短语,后者是一个动词短语。 eg. Her flight to Paris is taking off at 2 p.m. She is flying to Paris at 2 p.m. 课文解释: 五.课文解释: 课文解释
  1. You can imagine how strange it was!你可以想象这事有多惊奇! 你可以想象这事有多惊奇! 你可以想象这事有多惊奇 eg. You can imagine how fast he runs!

  2. I followed it to see where it was going follow sb. to do sth. 跟随…去做… eg. Mr White followed his wife to see what was happening there.
  3. She didn’t think about looking outside the station. Think about (doing) sth. 她未想到去车站外看看.
  4. say to sb. 对某人 say to oneself 自言自语 e.g.: He said to himself, “Don’t be afraid.” 他自言自语,“不要害怕”
  5. look for 寻找(强调找的 过程 ) find 找到(强调找的“结果”) 寻找(强调找的“过程 过程”) eg. He looked for his lost key everywhere but couldn’t find it.
  6. It was difficult to get out of bed. 从床爬起来很难。 从床爬起来很难。 It is difficult/hard to do sth. 做某事很难。 He found that it was difficult to learn physics well.
八年级下册 Unit 3 练习题
一.选择填空: 选择填空:
  1. Who jumps in your class? A. far B. farther C. farthest D. longer
  2. You must have Beyonce, and she is a very famous singer A. heard from B. heard C. heard on D. heard about
  3. We must hurry up, and the plane will in five minutes. A. leave B. go C. take off D. lands on
  4. Ted while he his bicycle and hurt himself. A. fell, was riding B. had fallen, rode C. fell, were riding D. had fallen, was riding
  5. The reporter said that the UFO east to west when he saw it. A. was traveling B. traveled C. had been traveling D. has traveled
  6. When I arrived at his office, he on the phone. A. spoke B. was speaking C. had been speaking D. had spoken
  7. There’s some policemen over there. What ? A.happened B.taking place C.happening D.was happening
  8. Look! He is sitting his car and driving carefully. A.in front of B. In the front of C.in front C. in the front
  9.She said she a paper kite at 7: 00 yesterday. A.makes B.is making C.will make D.was making
  10.I on the phone when a friend went into a barber's shop. A.talked B.was talking C.talk D.is talking
  11.What about more trees to keep the air clean? A.to plant B.plant C.planting D.planted
  12.When the UFO took , the girl was in the shop. A.out B.off C.on D.up
  13.It will be to work out this problem in some years. A.enough easy B.easily enough C.easy enough D.very easily
  14.How I was at that time! A.surprised B.surprise C.surprising D.surprise

  15.I am sorry you've missed the train.It ten minutes ago. A.left B.was leaving C.will leave D.leaves 二.句型转换:
  1.The alien is very strange.(改为感叹句)
  2. Mary could find her her cat somewhere.(改为否定句)
  3.While I was getting out of the shower ,the telephone rang.(用 when 改为同义句)
  4. They are doing exercises now.(用 this time yesterday 改写句子)
  5. There was a car accident when I came out of the school. (对划线部分提问)
 

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