Unit 7 Protect the Earth知识点讲解+考点精练（有答案）译林版三起

Unit 7 Protect the Earth 知识点讲解与考题精练（有答案） 【语音】字母组合“oo”的发音 Every day I go to school. 我每天都去上学 I think it’s really cool! 我觉得这真的很酷！ We have fun in the classroom 我们在教室里玩得很开心 Every morning and afternoon! 每天早上和下午！ · 字母组合oo在这里发长音/u:/，如：school，afternoon · 拓展：字母组合oo在k前，w后以及good, foot, stood中发短音/u/ 字母组合oo还可以发/ʌ/，如：blood, flood [试一试] 从下列每组单词中选出画线部分读音不同的一项。 ( )1.A.food B.cook C.wood D.foot 【知识点1】use的用法 We drink water and use water to clean things every day. 我们每天喝水, 用水清洗东西。 解析：use意为“用；使用” (1) 考点：use sth. to do sth. 用......做✰✰✰✰✰ = do sth. with sth. 例如：We use water to wash hands.我们用水洗手。 =We wash hands with water. 提醒:“主语 + use + sth + to do sth.”表示某人使用某物做某事。谓语动词use的形式要根据主语和时态的变化而变化。动词不定式在句中作目的状语。 (2) 【拓展】use和with都有用的意思，use是动词，with是介词，用法不同 “和” I played football with my brother last Sunday. with的用法: “长着” The boy with a big nose is my brother. “拥有” I have a new house with a big garden. “用” Make a sentence with “egg”. ✱注：句中有谓语动词时，选介词“with”表示用，句中无谓语动词时，选动词“use”。 【考题精练1】 一、单项选择。 ( ) 1. We can use water ________ things. A. to clean B. cleaning C. clean ( )2.You can use it ________ carry big things. A. for B.to C.at 二、用所给词的适当形式填空。 1. --There ________ (be) a lot of paper on the desk just now. But now there ________ (be) many paper bags on it. What happened? --Nancy ________ (use) the paper ________ (make) these bags. 2. Mr White (use) the telephone (call) people. 3. My father (use) a mobile phone (call) (I) just now. 4. Who can make a sentence (use/with) this new word? 5. They (use/with) paper to make a T-shirt. 【知识点2】情态动词should的用法 All students should know this. 所有的学生都应该知道这点。 1. 用法·情态动词should表示命令、建议、义务、责任，意为“应当，应该”。 ·情态动词should与动词原形搭配使用， ·其否定形式是should not，should not可缩写为shouldn’t。 易错点提醒：should为情态动词，没有人称和数的变化。 2. 情态动词should引导的几种常见句式： (1) 肯定句结构：主语 + should + 动词原形(+其他). 例如： You should sav