Unit 2 Section A Grammar -4c课件 2023-2024学年人教版八年级英语下册

Unit 2 I’ll help to clean up the city parks. Section A Grammar focus-4c 1. I can learn to use infinitives（不定式） in 6 different situations. 2. I can use “could” to give advice. Learning goals 2 Mario and Mary ________ ________ several hours each week ________ ________ others. Mario wants ______ ______ an animal doctor. He __________ at an animal hospital. He wants _______ _______ more about _______ _______ care for animals. to help Complete the passage. how to give up to be to learn volunteers Mary is a book lover. She could read by herself _____ ______ _______ of four. Last year, she decided ______ ______ ______ for a volunteer after-school ________ program. Mary still works there once a week _______ _______ kids learn to read. Volunteering here is a dream ________ ________ for her. She can do what she _______ _______ _______ and helps others at the same time. to try out at the age come true reading to help loves to do Mario wants to be an animal doctor. She volunteers at an animal hospital. He wants to learn more about how to care for animals. Mary is a book lover. She works in an after-school program to help kids to read. Do you still remember Mario and Mary from Riverside Highschool? 红色字体是什么？有什么作用？ 是不定式，不定式的基本形式是to do(有时to可以省略)， 否定形式为not to do。 作宾语 作宾语 作宾语 做目的状语 做宾补 Review it again! 动词不定式做宾语 want to do plan to do hope to do expect to do like/love to do decide to do seem to do agree to do hope to do would like to do learn to do it 做形式宾语 to do 做真正的宾语 wish to do 动词不定式是非谓语动词的一种， 它没有人称和数的变化， 在句中不能直接作谓语。 动词不定式（infinitive） 定义 其基本形式是“to+动词原形”， 常写作to do(有时to可以省略)。 Grammar Focus 构成 02 动词不定式作主语时，常用it作形式主语，而将不定式放在后面作真正的主语。（避免句子头重脚轻） It’s very useful to learn foreign languages. infinitives(动词不定式\-to do)用法 形式主语 系动词 表语 真正主语 做主语 8 We plan to have a picnic on the hill. infinitives(动词不定式\-to do)用