Unit 2 Stay Healthy Grammar Focus (4a~4d)知识清单人教版（2024）八年级下册

Unit 2 Stay Healthy Grammar Focus (4a~4d) 知识清单 词形变化 1.knife n.刀 →knives（复数） 2.clear adj.清晰的；清楚的v.清理 →clearly adv.清楚地；清晰地；显然 3.pain n.疼痛；痛苦 →painful adj.令人疼痛的；令人痛苦的 4.brightness n.亮度 →bright adj.鲜艳的；明亮的 5.environment n.环境 →environmental adj.有关环境的 6.cross v.穿越；横过；交叉 →crossing n.人行横道；交叉口 重点语块 1.get an X-ray 做X光检查 2.enjoy oneself 玩得开心；过得愉快 3.in hospital 生病住院 4.what's more 更有甚者；更为重要的是 5.change your screen's brightness 调整屏幕亮度 6.cross the road 过马路 7.avoid doing sth 避免做某事 重点句式 1.-How did you hurt yourself -你怎么伤到自己的？ -I hurt myself when I fell off my bike. -我从自行车上摔下来受伤了。 2. In fact, you should avoid using your phone too often.实际上，你应该避免频繁使用手机。 3. You could listen to music instead of watching videos.你可以听音乐而不是看视频。 要点讲练 cross与across辨析 cross与across辨析 原句：Of course, you shouldn't look at your phone just before you go to bed,and you certainly shouldn't look at it when you cross the road! (P15)当然，你不该在临睡前看手机，而且过马路时肯定不应该看手机！ cross v.穿越；横过；交叉 强调一个具体动作e.g. They crossed the bridge to get to the other side. across prep.&adv.过；穿过 强调状态或位置e.g.He swam across the river. 用cross或across填空。 ①We need to cross the river by boat. ②She walked across the room and opened the window. ③The boy can cross the street by himself now. ④My home is just across the road.It's very close. 情态动词should与could表建议 情态动词should与could表建议 should 应该；应当 给予建议时语气较强，认为这样做是对的，其否定形式为should not，常缩写为shouldn't。e.g.You should drink more water every day.You shouldn't spend too much time playing video games. could可以 表示较弱的可能性或委婉建议，隐含不确定性或礼貌。e.g. If you're tired, you could listen to some music to relax. 用should、shouldn't或could 填空。 ①It's raining.You should take an umbrella with you. ②If you're bored, you could read a book or go for a walk. ③You shouldn't drive too fast. It's very dangerous. ④-I need to improve my English. -Maybe you could watch some English movies in your free time. 反身代词 构成：第一、二人称反身代词是在形容词性物主代词基础上加-self/-selves，第三人称反身代词是在宾格的基础上加-self/-selves。 用适当的反身代词填空。 ①Help vourselves to some fish,children. ②The boy hurt himself when he fell on the rocks. ③They enjoyed themselves at the summer camp last week. ④The movie was so interesting that we lost ourselves in it. ⑤Nobody taught me Japanese. I learned it all by myself . ⑥The film itself wasn't very good, but I loved the music. ... ...