1、 现在完成时学案 精品资料 现在完成时导学案 石桥子初中 八年级 Our slogan: Where there is a will, there is a way. (有志者,事竟成.) 1、知识目标: 熟记动词的过去分词和现在完成时(一 )的构成形式。 2、能力 1)能用现在完成时描写自己的经历 2)能够正确使用already, just ,yet 能够区分have gone to 和have been to 【复习重点】 一、现在完成时谓语动词的构成: 二、能够对现在完成时进行句式变换 【复习难点】 have been to 与h
2、ave gone to的区别 【课前延伸】 做一做 复习动词的过去式和过去分词,写出下列单词的过去式和过去分词: 1.want 2.visit 3.enter 4.live 5.love 6.hope 7.study 8.marry 9.carry 10.stop 1
3、1.shop 12.have 13.send 14.be 15.go 16.write 17.make 18.hear 19.do 20.read 动词过去分词的构成: • 一,规则变化,在末尾加 ed, 1, 直接在末尾加 ed,如 visit — visited 2,以 e
4、 结尾的,加 d,如 live — lived 3,以辅音字母加 y 结尾的,把 y 变 i ,加 ed, 如 study—studied carry — carried 4,以重读闭音节结尾,并且末尾只有一个辅音字母的,双写辅音字母,再加 ed 如 stop — stopped drop --dropped 二,不规则变化的。 如 get — got make — made write —written be — been see — seen hear —
5、heard 等 试一试 复习现在完成时的构成。 现在完成时: 1. 构成:肯定句:助动词 或 + 否定句: 助动词 have / has后加 not, 可缩写haven’t / hasn’t 一般疑问句:助动词 have / has提前 I bave finished (finish) homework already. Has he seen ( see ) the film before? We haven’t been to the Great Wall. 2.用法: (1)表示过去发生或已完成的动作对现在造成的
6、 或 。常连用的时间状语有: , , , , , 等。 (2)你能说出already 和yet 的用法有什么不同吗? a 如果肯定句中含有already,在变成否定句或疑问句时,要把句中的already转换成 ______. b. already 多用于现在完成时肯定句的句中或 ______; yet多用于现在完成时否定句或疑问句_______。 看下面两个题,注意:句中already 和 yet不同用法 1. I have seen the film already. (变为否定
7、句) I haven’t seen the film yet. 2.I have already finished my homework. (变为一般疑问句) Have you finished your homework yet? 【课内探究】 【小组合作求共赢】 合作探究一 学习现在完成时的第一种用法,做下列练习题 一、用动词的适当形式填空: 1.Scientists ___________ (discover) many galaxies in the universe already. 2.He __________________ (not finish)
8、 his homework yet. 3.We _________ never _________(see) this film before. 4.Tony________just _________(make) a model of the space station. 5.Sally ________________ (not visit) China before. 6._______ the spacecraft __________ (reach) Mars yet? 课堂巩固我能行 巩固本课内容 二,句型转换 1. I’ve already made a mode
9、l of the spacecraft. (改为否定句) I_______ ______ a model of the spacecraft________. 2. They’ve been to Mars already. (改为一般疑问句) _______ they ______to Mars _______? 3. It has taken several months to get to Mars. (改为一般疑问句) ________ ________ _______ it taken to Mars? 4. on ,discovered , yet , life
10、 they , Mars , haven’t .( 连词成句 ) ————————————————————. 三,Can you choose “been to” or” gone to” ? 1.Have you ever ___ ___the Great Wall? 2.My mother isn’t at home ,she has ___ ___ the cinema. 3.Astronauts have ____ ____the moon and returned safely. 4.The space shuttle has ____ ____to the s
11、pace station. It will come back tomorrow. 小结: have been to与have gone to的区别 1. I have ever been to Shanghai . 我曾经去过上海。 2. — Where is your mother ? — She has gone to Shanghai. 你妈妈在哪里? 她去了上海。 have been to 曾经去过某地(已返回) have gone to 去了某地 (没有回来) 【课堂检测】 课堂检测棒前 一、句
12、式变换:(3分) 1. Jack has visited China before.(改为否定句) Jack _____ _____China before. 2. I have already heard the latest news .(改为一般疑问句) heard the latest news ______? 3. They have been here for 12 years. (改为一般疑问句) have they been here? 二、用所给词的正确形式填
13、空: (5分) 1. She _____ never ______ (read) this book . 2.______ Tom ______( finish) his homework yet? 3.I ______ (see) the film before . I don’t want to see it again. 4.He _____ already ________ (travel) around the world . 5.The astronauts ______ (not find ) life on the moon yet. 三、完成句子:(2分) 1. 他爸爸去北京出差了,他下周回来。 His father has ____ ____ Beijing on business. He will come back next week. 2. 我们去过北京。 We have ____ ______ Beijing. 【课后提升】 Homework: 1. 写一段短文,用现在完成时描述一位你熟悉的人的简历 2. 把本课内容归纳。 仅供学习与交流,如有侵权请联系网站删除 谢谢3






