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1、仁爱版九年级学案Unit 4 Topic 2一、知识目标【重要短语】be used for +ving 被用做come true 实现Its said that据说during/in ones life 某人一生be known as以（身份）而著名know/say for certain确切知道/肯定地说all the time 一直、总是no longer=notany longer不再 as long as只要as far as就，尽make a great contribution 对作出巨大贡献the rest of the time在其余地时间里at any time在任何时候【重
2、点句型】1.Whats it made of from?It was invented in 1879.3.What will our future be like?I hope your dream will come true.【重要语法】1.一般过去时的被动语态谓语部分的基本形式是be的过去式was/were+及物动词的过去分词。如：When was it made? 它是什么时候制造的？It was made in 1980.它是1980年制造的。When was the digital camera invented?数码像机是什么时候发明的？It was invented in 1
3、975.它是1975年发明的。2.时间前所用介词口诀年月周前使用in， 除此一般上下午。遇到几号要用on，某日上下晚如故。午夜黄昏须用at， 黎明用它也不错。At常用在时分前，说差要用to来表。何时使用 past？ 分钟超过半小时。二、要点讲评1. Because Im not allowed to play computer games.因为我不可以玩电脑游戏。allow “允许、准许”的意思。常用于以下几种形式：(1) allow +n./prep 如： We cant allow such a thing.我们不容许这种事情发生。(2) allow sb. to do sth 允许某人做
4、某事 如：She allowed me to go fishing.她允许我去钓鱼。(3) allow +doing sth 允许做某事 如：We dont allow smoking in the reading-room.我们不允许在阅览室吸烟。(4) be allowed to do sth被允许做某事 如：The students are allowed to play games on the play ground after school.放学后学生们被准许在操场上做游戏。2. How do you say this in English? 这用英语怎么说？其意思与Whats t
5、his in English相同。3. Its made from wood.它用木材做的。(1) .be made in 在地方制造，后接表示地点的名词。(2). be made of 用制造的，表示原材料未经化学变化，仍可看得出原材料。(3). be made from 用制造的，表示原材料经过化学变化，已看不出其原样。(4) .be made by 由（被）（人）制作，后接表示人的名词或代词。(5) .be made into 某物）被制成(6) .be made up of 由组成 如：.The TV set is made in Japan.这台电视机是日本生产的。.These ho
6、uses are made of stones.这些房子是由石头建造的。 .Paper is made from wood.纸是木头造的。.Was this cake made by your mother?这蛋糕是你妈妈做的吗？.Metal can be made into all kinds of things.金属可以制成各种各样的物品。.The medical team is made up of ten doctors.这支医疗队由10位大夫组成。4. Its used for helping us to improve our English.它用来帮助我们提高英语水平。(1).
7、be used for+ving= be used to do（被）用来做,强调用途或作用.(2).be used as（被）作为而用，强调被当作工具或手段来用。(3).be used by 被使用，by后跟人/物，强调使用者。如:.Pens are used for writing.钢笔被用来写字。.Wood is used to make paper.木材被用来造纸。.English is used as a foreign language in China.英语在中国被当作外语使用。.Recorders are often used by English teachers.英语老师经常
8、使用录音机。5. People are surprised at the rapid development of robots.人们为机器人的飞速发展感到惊讶。be surprised at表示“对感到惊讶”。而be surprised by是一个被动语态形式，表示“被所惊讶”。如：.I am surprised at you.我对你的举动感到诧异。.The manager was surprised by what he saw on the computer.那位经理被眼前出现在电脑屏幕上的东西所惊讶。6. They will no longer want to be our serva
9、nts, but our masters.它们将不再愿意做我们的人，而要做我们的主人。no longer（通常在动词前），notany longer; notany more（用于非正式文体中）都可表示“（过去曾）现在不再”如：.She no longer lives here.She doesnt live here any longer(或 any more).她不在这儿住了。（过去她曾住这儿）7. This method worked well at night as long as the weather was good and the stars could be seen.在夜间
10、只要天气晴朗，能看见星星，这种方法就能很好地发挥作用。 work well 有效 ；as long as 只要。三、典型例解( )1.Students _ their hair when they are at school.t allow to dye(给染色)B.are not allowed to dyeC.arent allowed to dyingD.arent allowed dying分析：B allow跟复合宾语的结构是allow sb. to do sth. 在被动语态中的结构是be allowed to do sth. dye v.表示“给染色”，print v.表示“印刷
11、”。( )2.When was _ umbrella _?A./; inventedB.a; discoveredC.an; discoveredD.the; invented分析：D invent v.发明，创造(指世间原来没有的东西), 其被动语态是be invented; discover v.发现（世间本来就存在，后被人类所发现的东西），其被动语态是be discovered; 另外伞在这里是特指。( )3.The cleaners make a great contribution to _ the city clean.D.be kept分析：B make contribution
12、s to+n./v-ing 意为“为作贡献”。( )4.Did you go to Jims birthday party?No, I _.A.am not invitedB.wasnt invitedC.havent invitedD.didnt invited分析：B 本题考查被动语态。( )5.The dream of flying up into space has _.A.come trueB.come into beingC.come backD.come in分析：A 根据题意考查短语come true 实现。( )6.Do you know for _ that it was
13、made in 1980?分析：A for certain确切地。( )7._ you finish your homework, you can go out to play.A.As well asC.As long asD.As far as分析：C as long as 只要( )8.Its _ that you have been to Shanghai alone.Yes, thats right.分析：A Its said 据说/听说。( )9.Computers are very useful. For example, they can _ sending e-mails.A
14、.be used toB.be used withC.be used forD.be used as分析：C be used to 被用来做某事；be used for 被用来做什么；be used as 被用作；故选C。( )10.I saw Lucy go to Miss Zhangs home just now.Yes, she is often seen _ Miss Zhang with her housework.A.help B.to help分析：B 主动句中see后的不定式作宾语补足语省去to，但在被动句中应将to加上。四、评价作业I. 根据句子意思及首字母提示补全单词1.The film “Hero” is d_ by Zhang Yimou.2. An English scientist named Rin Wallemart c_ the first sheep “Dolly” in July, 1996.3. Many centuries ago, people believed that they were c_ by God.4. Cloning is a famous e_ throughout the world.5. Edison invented more than one thousand i_
