Unit 10 Water Festival Stage 4课件2022-2023学年牛津上海版七年级英语下册

Unit 10 Water Festival Listening and speaking: A game about signs 1 Brainstorm. What signs do you see near ponds/rivers/fountains? allow v. 允许；准许 My mother doesn’t allow me to watch TV. play with玩耍 They are playing with toys. Read the words and phrases for a few minutes. allow v. 允许；准许 play with玩耍 Read and learn Learn the signs together. —What does this sign mean? —Diving is not allowed. /People mustn’t dive. /Don’t dive!/ No diving! —What does this sign mean? —_________is not allowed. / People mustn’t ________. / Don’t ________!/No__________! Swimming swim swim swimming Listen and say This sign means: People mustn’t dive. I’ve prepared a game about signs. To play the game, you have to know what my signs mean. This sign means: People mustn’t swim. Look and talk Look at the signs and discuss them with your classmates. S1: What does the sign mean? S2: It means: … S1: What does the sign mean? S2: It means: … S1: What does the sign mean? S2: It means: … S1: What does the sign mean? S2: It means: … S1: What does the sign mean? S2: It means: … S1: What does the sign mean? S2: It means: … Grammar 祈使句用于表达命令、请求、劝告、警告、禁止等。祈使句最常用于表达命令。 祈使句因对象（即主语）一般是第二人称，所以通常都省略。祈使句以动词原形开头。 祈使句 （1）肯定形式 ①Do型：动词原形(+宾语)+其他. Please have a seat here. 请这边坐。 Go this way, please. 请这边走。 ②Be型：Be +表语(名词或形容词) +其他. Be a good child! 要做一个好孩子! ③Let型：Let + 宾语 + 动词原形 +其他. Let me help you. 让我来帮你。 （2）否定形式 ①Don’t型: Don’t+动词原形(+宾语)+其他. Don’t forget me! 不要忘记我！ Don’t be late for school! 上学不要迟到！ 【拓展】Let型的否定式有两种：“Don’t + let + 宾语+ 动词原形+其他. ”和 “Let + 宾语 + not + 动词原形 +其他. ”。 Don’t let him go. / Let him not go. 别让他走。 ②No型：No +动词-ing/名词. No smoking! 禁止吸烟！ No fishing! 禁止钓鱼！ 1. Diving is not allowed. 禁止跳水。 （1）被动语态 is not allowed是被动语态，意为“不被允许”。被动语态的构成是“be+及物动词的过去分词”。 He is asked to clean the classroom. 他被要求打扫教室。 （2）allow 〔及物动词〕允许；准许 allow sb. to do sth. 允许某人做某事 My parents allow me to play basketball for two hours on Sundays. 我父母允许我周日打两个小时的篮球。 allow doing sth. 允许做某事 They don’t allow