巩固点 03 动词不定式-【暑假辅导班】2021年新九年级英语暑假精品课程（仁爱科普版）

巩固点03动词不定式 动词不定式 基本形式：to+动词原形（肯定形式）Not to+动词原形（否定形式） 特征：没有人称和数的变化 (1)作表语, 常用在系动词之后. Your group’s task is to find out the cost to go by train. 你小组的任务是去弄清搭火车的费用。 She seems to be happy.她似乎很快乐。 (2)作主语, 常用it（形式主语）代替, 不定式放在后面做真正主语. It is hard to say.很难说It is important to learn English well. 学好英语非常重要。 (3)作宾语, 常用在help,want; like; hope; begin; try; forget; learn; plan; decide; need 等及物动词后,构成动宾结构 注help 后接不定式做宾语可省略To They help (to)raise money for a school I want to buy some books.  我想去买一些书。 She likes to join the English Club. 她喜欢加入英语俱乐部。 We hope to be teachers.   我们希望成为教师。 Don’t forget to call me.   别忘了打电话给我。 提示：跟动词不定式作宾语的动词有: · 想预订房间 want to book a room · 决定去春游decide to go on a spring field trip · 计划骑车去那儿plan to cycle there · 选择乘火车choose to take a train · 希望玩得愉快hope to have a good time · 拒绝与别人说话refuse to talk with others (4 ) ★作宾补ask,tell,want,invite,wish,allow,teach后加不定式做宾补，否定式+not to do We ask Tom to not to book the tickets ①跟动词不定式作宾补的动词: v. + sb. (not ) to do sth. 告诉tell 鼓励 encourage 命令order 使 get 想要want / would like 邀请 invite 教teach 要求 ask ②跟动词不定式作宾补的动词（ v. + sb. (not ) do sth.）--to省略 “听、观、使、让、帮”---- hear, see, watch, make, let, help 但是help也可用help sb. to do sth. 的结构 Eg: 我看见他几乎每天都打篮球。 I see him play basketball almost every day. 老板强迫工人整天干活。 The boss makes the workers work all day. 5) 动词不定式作目的状语: 1 我要去北京看长城。 I want to go to Beijing to visit the Great Wall. 2 为了赶上早班车，他每天很早起床。 He gets up early to catch the early bus every day. 3 他们决定上网以获取更多的信息。 They decided to search the Internet to get more information. I. 不定时追踪练习 ( ) 1. The teacher told the students ______ in class. A. not talk B. don’t talk C. didn’t talk D. not to talk ( ) 2. My mother often asks me ______ early. A. get up B. got up C. getting up D. to get up ( ) 3. “Don’t always make Michacl ______ this or that. He is already a big boy, dear.” Mr Bush said to his wife. A. do