(
课件网) Unit 4 Do it yourself Grammar 2020年秋牛津译林版英语八年级上册精品课件 学 习 目 标 学习本课时新单词及短语：cut, sentence, on the other side of 1 3 学会用should 和had better来提出建议。 学会运用祈使句表达指令。 2 Grammar A Play a game 1. Stand up. 2. Sit down. 3. Put up your hands. 5. Come here. 7. Go back to your seats , please. Please 的作用:以使语气更加缓和或放在客气。 句前或句后均可以。 6. Touch your nose. 4. Jump twice. 课 堂 导 入 Guessing Game Don’t smoke! No smoking! Don’t play football! Turn left. Turn right! Don’t park your car! Don’t eat! Don’t pick the flowers! Be quiet, please. Don’t make any noise. Go upstairs! Go downstairs! Read and observe(观察) Turn left. Turn right! Please go upstairs! Go downstairs! Be quiet,please. Don’t smoke! Don’t play football! Don’t park your car! Please don’t eat! Don’t pick the flowers! 1. 祈使句的概念 祈使句表示请求、命令等。它的主语是you（听话人），通常不说出。祈使句肯定结构中的谓语动词用动词原形。祈使句末用叹号或句号。 2. 祈使句的结构 1) 祈使句的肯定结构 ① Do型（以行为动词原形开头），例如： Sit?down!坐下！? Stand?up!起立！ ② Be型（以be开头），例如： Be?quiet!安静！ Be?careful小心！ ③ Let型（let sb do sth），例如： Let?me?try. 让我试试看。 Let’s?look?at?the?map. 让我们看看地图。 ● let’s是let?us的简略式。 2) 祈使句的否定结构： ①一般在肯定结构前加?Do?not?(Don’t)。例如： Don’t?go?there, please. 请别去那儿。 Don’t?be?late?for?class! 上课别迟到！ Don’t?let?him?in.?不要让他进来。 ② . 在公共场合的提示语中，常用的结构 “No＋名词 / v.-ing” ，表示“禁止做某事” No smoking! No photos! No parking! ③. Never + 动词原形 + 其他 不要再那样做了。 Never do that again. 表示请求、劝告的祈使句还常常在句前或句末加上please,?构成句式：Please …或 …, please.?以使语气更加缓和或客气。例如： Please?stand?up. Stand?up, please. 请站起来。 Please?have?a?rest. Have?a?rest, please. 请休息一下。 祈使句的回答 祈使句通常表示将来要发生的动作，所 以回答时，一般用will或won’t。 — Don’t forget to do your homework. — I won’t. — Remember to turn off the lights. — I will. 口诀 祈使句,无主语,只用动词就可以. 表示请求或命令,加上please表客气。 如果变成否定句,Don’t开头是规律。 No talking!是警示,祈使句用法要牢记。 Millie is teaching her classmates how to make cards to help them remember things better. Look at the pictures and help Millie complete the instructions. How to make cards _____ out pieces of card with a pair of scissors. Cut cut draw give keep look try write _____ some words or a sentence on each card. Write cut draw give keep look try write _____ a picture about the words or sentence on the other side of the card. Draw cut draw give keep look try write _____ at the picture and ___ to remember what is on the other side. Look try cut draw give keep look try write Please _____ (not) up. ____ trying, and you will find you can remember things better. don’t give Keep cut draw give keep look try write 1. Jim, _____ me a hand. A. gives B. is giving C ... ...
