- 1 -英语九年级上册第四单元教学案执笔人 曾碧云Section A 第一课时一、课前预习：翻译下列句子或短语millions of _ worry about _ take a long walk _get nervous _ give it to charities _ what if _1. If I were you , Id wear a shirt and tie.2. What if everyone else brings a present ?3. The food you eat could help with this problem .用正确的词语填空 。If I were you , Id do sth.4. I dont know what _ wear.5. If I _ you, Id wear a shirt and tie.6. If I _(win) a million dollars in the lottery，Id give it to medical research.二、重点讲解及课堂练习重要单词、词组1.million n. 百万注意：修饰名词时与具体数字连用，不用复数。a capital of ten million dollars. 一千万美元的资本。表示笼统数字时用 millions of ：数百万的，无数的2. pretend to do sth. 假装做某事 I pretended to sleep just now. pretend +从句 假装 I pretended that I fell asleep. 3. be late for 迟到 如：I am late for work/ school/ class/ party.4. a few 与 a little 的区别，few 与 little 的区别 a few 一些 （修饰可数名词） a little 一些 （修饰不可数名词）两者表肯定意义如：He has a few friends. 他有一些朋友。 There is a little sugar in the bottle. 在瓶子里有一些糖。 few 少数的 修饰可数名词 little 少数的修饰不可数名词 但两者表否定意义如：He has few friends. 他没有几个朋友。 There is little sugar in the bottle.在瓶子里没有多少糖。5. still 仍然,还 用在 be 动词之后，行为动词之前 如：I am still a student.我仍然是个学生 I still love him.我仍然爱他。6. hundred, thousand , million, billion (十亿)词前面有数词或 several 一词时要不能加 s ，反之，则要加 s 并与 of 连用， 表示数量很多 如：several hundred/ thousand/ million/ billion people 几百/千/百万/十亿人 hundreds of trees 上百棵树- 2 -7. what if + 从句 如果怎么办， 要是 又怎么样 如：What if she doesnt come? 要是她不来怎么办？What if LiLei knows? 如果李雷知道了怎么办？8. add sth. to sth. 添加到 如： I added some sugar to water. 我把糖添加到水里。9. 系动词与形容词连用 get nervous 变得紧张 feel shy 觉得害羞 look friendly 看起来友好10. too +形/副+to do sth. 太而不能 如：Im too tired to stand. 我太累了而不能站。11. help with sth. 如：They help with this problem.help sb. do. 如：They help you relax. 他们帮助你放松12. in public 在公共场所 如: Dont smoke in public. 请不要在公共场所吸烟。13. energetic adj. 活力的 如：She is a energetic girl. 她是一个活力的女孩。energy n. 活力 如：She has lots of energies. 她有活力。14. ask sb. to do 叫做某事 ask sb. not to do sth.叫不要做某事tell sb. to do 告诉做某事 tell sb. not to do sth. 告诉不要做某事如：Teacher asked me to clean the classroom.Teacher asked me not to clean the classroom.15. start doing = start to do. 开始做某事 如：He started speaking/ to speak. 他开始说话。16. borrow sth. from sb. 从某人那里借来某物 如：I borrowed a book from Lily. 我从莉莉那里借来一本书。17.wait for sb.等某人 如：I am wait for him. 我正在等他。18. introduce sb. to sb. 把某人介绍给某人 如：I introduced Lily to Anna. 我把莉莉介绍给安娜。19. invite sb. to do 邀请某人做某事 如：Lily invited me to go to her home for supper. 莉莉邀请我去她家吃晚饭。20. have dinner/ supper 吃晚饭 have lunch/ breakfast 吃午餐、吃早餐21. plenty of 修饰不可数名词，也可以修饰可数名词 许多 如：They have plenty of food/ apples. 他们有许多的食物/苹果。22. 给某人某物 give sth. to sb. 如： give an apple to me give sb. sth. give me an apple 给我一个苹果23. get along with sb. 与相处 如：Do you get along well with your friends? 你和你的朋友相处得好吗？24. would rather do sth. than do sth. 表示愿做某事而不愿做某事 如：I would rather walk than run. 25. whole 整个 26. in fact 事实上27. let sb. down 让某人失望 如：Dont let your mother down.不要让你的妈妈失望。28. come up with sth. 提出 想出 如：He came up with a good idea. 他提出了一个好主意。 catch up with sb. 追上 赶上 如：Lily caught up with Anna . 莉莉赶上了安娜。29. have experience doing 在做某事有经验如：- 3 -I have experience teaching Chinese. 我在教英语方面有经验。30. come out 出版，出来 如：The magazine comes out once a week. 这种杂志每周出一次。31. by accident 偶然地，无意之中 如：Last week I cut my finger by accident. 上个星期我不小心割到自己的手指。32. hurry to do 匆忙 I hurry to call the police. 33. more than 超过34. offer sb. sth. 给某人提供某物语法知识归纳：宾语从句 宾语从句在复合句中作主句的宾语。由连接词+ 主语+ 谓语构成常由下面的一些词引导：由 that 引导 表示陈述意义 that 可省略He says (that) he is at home. 他说他在家里。由 if , whether 引导 表示 一般疑问意义(带有是否、已否、对否等)I dont know if / whether Wei Hua likes fish. 我不知道韦华是否喜欢鱼。由 连接代词、连接副词(疑问词) 引导 表示特殊疑问意义Do you know what he wants to buy? 你知道他想要买什么吗？从句时态要与主句一致当主句是一般现在时，从句根据情况使用任何时态He says (that ) he is at home. 他说他在家里。I dont know (that) she is singing now. 我不知道她正在唱歌。She wants to know if I have finished my homework. 她想要知道我是否已经完成了我的作业。Do you know when he will be back? 你知道他将会什么时候回来？当主句是一般过去时，从句应使用过去某时态(一般过去时,过去进行时，过去将来时，过去完成时) He said (that) he was at home. 他说他在家里。I didnt know that she was singing now. 我不知道她正在唱歌。She wanted to know if I had finished m homework. 她想要知道我是否已经完成了我的作业。Did you know when he would be back? 你知道他将会什么时候回来？三、重点句型解读：1What would you do if you had a million dollars ?用法：if 引导的虚拟的条件状语从句，从句为非真实条件句。非真实条件句是指假设的条件与事实相反或不可能实现。当虚拟语气与现在事实相反时，从句用一般过去时。主句用 should /would/could /might + 动词原形。1) If I had time , I would go for a walk. _2) If I were invited , I would go to the dinner party.（翻译）_3) If I won a million dollars in the lottery, I would put it in the bank._2. He doesnt know if he should bring a present. 用法：1）此处 if 表示“ 是否” ，相当于 whether ，引导宾语从句。- 4 -2)should 此处表示“ 应该 ”，不是用来表示虚拟语气。拓展：if 作“ 是否” 讲，引导宾语从句，从句可以用一般将来时或其他时态。if 作“如果” 讲，引导条件状语从句，从句用一般现在时代替一般将来时。（翻译）1) I dont know if I s