广州版初二英语上册Unit2.doc

广州版初二英语上册Unit2同步辅导 【课堂演练】 一、听写Unit 2重点单词和短语并引导学生注意其基本用法： ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ ___________________________________________________________________________________ 二、重点词组： 1. a long time ago 很久以前 2. for a long time 很长一段时间 3. order sb to do sth 命令某人干什么 4. ask sb for help 向某人寻求帮助 5. the number of ….的数目 6. copy down 抄写下来 7. at first 首先，第一 8. help sb do sth 帮助某人干什么 9. in this way 用这种方法 10. so that 以便 三、重点词组解析： （一）If引导的条件句： a. if引导的条件句主句用一般将来时态，从句用一般现在时态。 If you fail in the exam，you will let him down．如果你考试不及格，你会让他失望的。 b. if从句用一般现在时，主句用may / might / can If the fog gets thicker the plane may/might be diverted. 如果雾在大一些，飞机可能就会改在别的机场降落。 If it stops snowing we can go out. 如果雪停了，我们就可以出去。 c．if从句用一般现在时，主句用must/should If you want to lose weight you must/should eat less bread. 如果你想减肥，你必须少吃面包。 d．if从句用一般现在时，主句用一般现在时 If you heat ice it turns to water. (也可用will turn)如果把冰加热，它就会化成水。 热身练习： 1. If you ____________(feel) tired, you _______________ (have) to have a rest. 2. Where ___________ he _________(see) the film if he _______________(have) time? 3. If there ______________(be) fewer trees, there _______________( be) more pollution. 4. He ____________________(dress)? more casually if he ________________( not work) on weekends. 5. If Marcia _____________(live) alone, she ___________________( keep) a pet parrot. 6. Lana ________________( buy) a new dress if the old one _____________(be) out of style. 7. The twins ______________(fight) if they_______________(argue). 8. I __________________(have) a bake sale if I _____________(need) money for education. 9. Peter _____________( send) me a beautiful