外研版九年级英语上册《Language in use》Museums PPT课件下载(第1课时)，共26页。Read the sentences:No shouting, please!Don't cross that rope!Don't be rude!If you ever go to London, make sure you visit the Science Museum.Read and understand the red words:Don't touch.No photos.No entry.No smoking.No shouting.If you want to fill a bag with sand, control a kind of truck on wheels and move it into the correct place.Fill in the blanks:1. If you ________ (want) to get good grades, _______(study) harder.2. If it _____ (get) colder, _____ (put) on more warm clothes.3. If you ______ (want) to know the way, _____ (ask) the policeman. 4.If you _____ (visit) London, _____ (take) a boat trip on the river.5. If the machine _____________ (not work), ______ (buy) a new one, please.Grammar1. No + v. -ing/ n.! 禁止做……eg. No talking!No photos!2. 否定祈使句: Don't + v. 不能做……eg. Don’t talk.Don't take photos.3. mustn't + v. 禁止eg. You mustn’t talk.You mustn't take photos.4. can't + v. 不允许eg.You can’t talk.You can't take photos.5. You aren’t allowed to + v. 不允许对方做某事eg.You aren’t allowed to talk.You aren't allowed to take photos.if从句+祈使句，表达建议，相当于汉语的“如果……，就……”。if引导的从句可以放在主句之前，也可以放在主句之后。如果放主句前要注意用逗号分开主从句，放主句后则不需要。）eg. If you want to play back, press the red button.如果你想回放，按红色按钮。Wait for thirty seconds if the red light doesn't come on.如果红灯亮，请等待三十秒。... ... ...关键词：Language in use PPT课件免费下载，Museums PPT下载，.PPTX格式； 本作品中主体文字及图片可替换修改，文字修改可直接点击文本框进行编辑，图片更改可选中图片后单击鼠标右键选择更换图片，也可根据自身需求增加和删除作品中的内容，源文件无水印。如认为该内容涉嫌侵权，可通过邮件提出书面通知，我们将及时处理。