Unit 2 Section A 单词讲解及语法课件 2023-2024学年人教版八年级英语上册

Unit 2 How often do you exercise? Section A Part One Word Explanation （单词讲解） 1.(1) once ① adv. 一次 once a week / month / year 表次数 ② adv. 曾经 He once lived in Hangzhou. This book was once famous(著名的), but now nobody reads it. (2） twice ① adv. 两次 twice a week / month / year 表次数 ② adv. 两倍 Cats sleep twice as much as people. This room is twice as big as that one. 注：在英语中“三次及三次以上” 用 ：基数词+ times 五次： 十次 five times ten times 与一般过去时连用 2. full (1) adj. 忙的 Go to bedearly. You have a full day tomorrow. = busy 反义词： free (2) adj. 满的，充满的 反义词：empty Don’t talk with your mouth full. All in all, life is always full of beauty as long as you watch carefully(仔细地). The glass is full of water. be full of ..... 充满....; 装满..... = be filled with.... (3) adj. 饱的 Thanks for your delicious cake, but I am really full. 3. result n. 结果，后果 He stayed up late last night. As a result, he was late for work this morning. As a result, my speech (演讲) was successful(成功的）. as a result 因此，结果 单独成句 As a result of bad weather, he couldn’t go out. She died as a result of her illness(疾病 ). as a result of ..... 由于.... + 名词 / 名词短语 拓： n. 成绩，得分 When do you know P.E. result? 4. percent n. 百分之..... (1) 单复同形 one percent / forty percent (2) 基数词+ percent of + 限定词+ 名词 作主， 动词的单 / 复由名词决定 Seventy percent of the apples are red. Twenty percent of the water is covered(覆盖) with ice. There are 63 students in my class. And eighty percent of them are from village. 1. The twins can watch TV three __________ (time) a week. 2. Mr. Green goes to the movies __________ (two) a month. 3. He doesn’t like sad stories, so he ______ (hard) reads them. 4. How about _______ (dance) with him this evening? 5. He often _________ (watch) his favorite program. Practice 练习 times twice hardly dancing watches 6. I like to read lots of news ______ the Internet when I’m free. A. in B. with C. on D. at 7. The bottle is full ______ water, but the little bird ca