版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
1、Unit 8,武安市第十一中学 彭国栋,Unit 8 Have you read Treasure Island yet?,Section A 3 Grammar focus-4c,Learning aims:,1.理解现在完成时态的用法和构成。 2.会用现在完成时态做简单的提问和回答。 3.掌握过去分词的构成规则。 4.用现在完成时态写一篇过去和现在对比的文章。,Revision,Read the following sentences we have seen.,Have you read Little Women yet? Yes, I have./ No, I havent. Has
2、Tina read Treasure Island yet? Yes, she has. She thinks its fantastic. Have you decided which book to write about yet? Yes, I have. Ive already finished reading it. It was really good.,用法 表示过去发生或已经完成的某一动作 对现在造成的影响或结果。 e.g. Have you had your lunch yet? Yes, I have. Ive just had it. (现在 我不饿了。),现在完成时,时
3、间状语 already, yet, just, ever, never, before,already和yet都可以作为现在完成时的标 志词,但它们的用法不同。 already一般用于肯定句中。如: We have already cleaned up our classroom. 注意:already用于疑问句中时通常表示惊奇。如: Have you finished your homework already? I cant believe it.,yet一般用于疑问句和否定句中。如: Have you seen her yet? The bus hasnt come yet.,构成 现在
4、完成时是由“助动词have / has+ 动词的过去分词”构成的。 在现在完成时的各种结构中,have,has均为助动词,无实际意义,只起构成时态的作用,不可省略。当主语是第三人称单数时助动词用has,其余人称一律用have。,句式 1. 肯定句:主语 + have / has + 过去分词 (+ 其他) 2. 否定句:主语 + have / has + not + 过去 分词(+ 其他) 3. 一般疑问句:have/ has + 主语 + 过去 分词(+ 其他) 答语:肯定回答:Yes,主语+have/has 否定回答:No,主语+havent/hasnt,句式 肯定句:I have jus
5、t washed my clothes。 我刚刚洗过衣服。 2. 否定句:I havent seen the movie yet。 我还没看这部电影。 3. 一般疑问句:-Has she arrived here? -Yes,she has。 -No,she hasnt。 -她已经到这了吗?-是的,她到了。 -不,她还没到。,动词的过去式的变化和过去分词的变化并不完全相同。我们对它们作了一个大致的分类。 (注:例子中单词的变化顺序为:动词原形 动词的过去式 动词的过去分词),一、过去式和过去分词的变化相同 规则变化: 1. 一般在动词词尾直接加ed。如: pick picked picked;
6、 wish wished wished; stay stayed stayed 2. 以不发音的e结尾的动词后面加d。如:like liked liked; hope hoped hoped; phone phoned phoned,3. 以“辅音字母 + y”结尾的动词,变y为i,再加-ed。如: study studied studied; hurry hurried hurried; reply replied replied 4. 词尾只有一个辅音字母的重读闭音节动词,要双写辅音字母,再加-ed。如:stop stopped stopped; clap clapped clapped,
7、不规则变化: 5. 以不变应万变。如: let let let; put put put; read read read 6. 若中间有双写e,则去掉一个e,单词末尾再加t。如: feel felt felt; keep kept kept; sleep slept slept,7. 结尾的字母d变t。如: lend lent lent; build built built; send sent sent 8. 变为以-ought或-aught结尾。如: buy bought bought; bring brought brought; catch caught caught; teach t
8、aught taught,9. 以n或者en结尾。如: be was/were been; see saw seen; know knew known; fall fell fallen,活学活用,1. Write the forms of the past tense and past participle: drink _ _ see _ _ find _ _ leave _ _ tell _ _ do _ _,drank drunk,saw seen,found found,left left,told told,did done,Why is Mr. Yang still in the
9、 teachers office? Maybe he _ his work yet. A. doesnt finish B. hasnt finished C. havent finished,B,Exercises,Use the words in brackets to complete the conversations. 1. A: Would you like something to drink? B: No, thanks. _. (just/ drink some tea) 2. A: I heard you lost your key. _? (find) B: No, no
10、t yet.,I have just drunk some tea,Have you found it,3. A: Do you know when Tom is leaving? B: _. (already/ leave) A: When _? (leave) B: This morning. 4. A: Is your sister going to the movies with us tonight? B: No. _. (already/ see the film),He has already left,did he leave,She has already seen the
11、film,5. A: What do your parents think about our plan? B: I _. (not/ tell them/yet),havent told them yet,( )【广西贵港】 Do you know the movie Lost in Thailand? Yes. I _ it twice. Its funny. A. saw B. see C. have seen D. will see,C,中考链接,( )【黑龙江牡丹江】 Lunch? No, thanks. I_. A. will eat B. am eating C. have ea
12、ten ( )【湖北黄冈】 Where is Tom? We cant find him anywhere. Perhaps he _ home. A. has come B. is going C. went D. was going,C,A,用法 表示过去发生或已经完成的某一动作 对现在造成的影响或结果。 e.g. Have you had your lunch yet? Yes, I have. Ive just had it. (现在 我不饿了。),复习现在完成时,时间状语 already, yet, just, ever, never, before,构成 现在完成时是由“助动词ha
13、ve / has+ 动词的过去分词”构成的。 在现在完成时的各种结构中,have,has均为助动词,无实际意义,只起构成时态的作用,不可省略。当主语是第三人称单数时助动词用has,其余人称一律用have。,句式 1. 肯定句:主语 + have / has + 过去分词 (+ 其他) 2. 否定句:主语 + have / has + not + 过去 分词(+ 其他) 3. 一般疑问句:have/ has + 主语 + 过去 分词(+ 其他) 答语:肯定回答:Yes,主语+have/has 否定回答:No,主语+havent/hasnt,一、过去式和过去分词的变化相同 规则变化: 1. 一般在
14、动词词尾直接加ed。如: pick picked picked; wish wished wished; stay stayed stayed 2. 以不发音的e结尾的动词后面加d。如:like liked liked; hope hoped hoped; phone phoned phoned,3. 以“辅音字母 + y”结尾的动词,变y为i,再加-ed。如: study studied studied; hurry hurried hurried; reply replied replied 4. 词尾只有一个辅音字母的重读闭音节动词,要双写辅音字母,再加-ed。如:stop stopped stopped; clap clapped clapped,不规则变化: 5. 以不变应万变。如: let let let; put put put; read read read 6. 若中间有双写e,则去掉一个e,单词末尾再加t。如: feel felt felt; keep kept kept; sleep slept slept,7. 结尾的字母d变t。如: lend lent lent; build built built; send sent sent 8. 变为以-ought或-aught结尾。
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- GB/T 24675.1-2024保护性耕作机械第1部分:浅松机
- 运输公司方案设计(2篇)
- 环游音乐世界(山东联盟)-知到答案、智慧树答案
- 害虫生物防治-知到答案、智慧树答案
- 国际贸易-知到答案、智慧树答案
- 2023年粉碎机资金筹措计划书
- 2024年高纯超细氧化硅纤维项目资金需求报告代可行性研究报告
- 2023年畜牧设备资金申请报告
- 2024年减毒活疫苗:卡介苗项目资金需求报告代可行性研究报告
- 2023年车辆设备产品资金需求报告
- 制冷机房设备安装施工方案(完整版)
- 北京地铁线路图打印版
- 劳动力需求计划表及相关说明(投标阶段)
- 工程项目职业健康、劳动卫生保障措施
- 报价明细表(消防报警系统
- 门窗企业管理规章制度
- 船舶性能手册半潜驳
- 水泥混凝土破碎专项施工方案(完整版)
- 大班教案-手工《野斑马》
- 费用报销单表格表单
- 安全经验分享-受限空间作业安全
评论
0/150
提交评论