(
课件网) 初中英语人教版八年级下册 Time to Time to Relax Relax Unit 1 Section A How do you spend your free time 第三课时 4a-4c 1. Learning goals Learn new words and phrases: get into, give it a go, kung fu, push, myself, once in a while, chat, outing, go on a outing. 01 Use infinitives to show purpose or provide more information about a sentence’s object. 02 2.Warming up How did you spend your weekend I went to the gym to swim. I watched a film to relax. What is the function of the infinitive in bold 2.Warming up What are you going to do next weekend I plan to have a picnic at the park. I decide to clean my room. What is the function of the infinitive in bold 动词不定式的基本形式是“to+动词原形”，没有人称和数的变化，在句中不能作谓语。动词不定式可在句中作主语、宾语、宾语补足语、状语等。本单元重点讲动词不定式作目的状语和宾语补足语。 3. Grammar 动词不定式作目的状语 2.动词不定式(短语)作目的状语时可放在句首，一一般用逗号与后面的内容隔开，也可放在句尾。 1.动词不定式(短语)作目的状语时，通常意为“为了……”，用于说明动作的目的或意图。 动词不定式作目的状语 To get there on time, they started early. =They started early to get there on time. 为了准时赶到那儿，他们很早就出发了。 【特别提醒】 表示目的也可用in order to和so as to，但so as to通常不位于句首。 He reads every day in order to/so as to improve writing skills. 为了提高写作技能，他每天阅读。 典例1 用括号中所给词的适当形式填空。 The children did a lot of research in the lab (finish) the science project. to finish 动词不定式作宾语补足语 用于补充说明宾语的动作或状态，通常用于某些动词之后，构成“动词+宾语+不定式”结构。 1. 用于“命令、要求、允许 ”类动词后，如 ask、tell、order、require、 allow、permit。 Sam asked me to help him. 萨姆让我帮助他。 The teacher always tells us not to swim in the river. 老师总是叮嘱我们不要在河里游泳。 动词不定式作宾语补足语 2. 用于“ 希望、期望 ”类动词后， 如：want、wish、expect、would like。 Parents want their children to grow up healthily. 父母希望孩子健康成长。 动词不定式作宾语补足语 3. 用于使役动词（如 make、have、let等）和感官动词（ 如 see、watch、 notice、hear、listen to、feel等）后时，动词不定式通常省略 to。 Did you notice her leave the house 你注意到她离开屋子了吗 I saw her get into the car. 我看见她上了车。 His parents let him sweep the floor. 他父母让他扫地。 动词不定式作宾语补足语 【特别提醒】 动词不定式（短语）在 help 后作宾语补足语时，可带 to也可不带to。 The teachers often help us (to) solve problems. 老师经常帮助我们解决难题。 动词不定式作宾语补足语 4. 用于其他动词后，如 teach、warn、invite、encourage等。 典例2 用括号中所给词的适当形式填空。 Our English teacher is humorous and he often tells funny jokes to make us (laugh) . laugh Read the sentences. Decide if each infinitive in bold functions as an object complement or adverbial. 4a What do you do in your free time How did you spend your weekend How did you get into painting What did your instructor say adverbial adverbial object complement I play the flute ... ...
