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1、 Unit 5 Look into Science Lesson 30 Science Affects Us 1.Have you ever done any interesting 1.Have you ever done any interesting experiments? Can you describe one of experiments? Can you describe one of them?them? 2.What would life be like without 2.What would life be like without computers or mobil
2、e phones?computers or mobile phones? Think about itThink about it New wordsNew words discoverydiscovery affectaffect suggestsuggest mobile phonemobile phone Presentation n.n. 发现发现 v v . . 影响影响 v v . . 建议建议 n n . . 手机手机 Science affects peoples (1) lives. Without the scientific developments of recent
3、years, our lives would be very different. Can you imagine life without computers or (2) ? Scientific (3) are making our lives better and better. DNA is really one of the most amazing things on the earth. Many people think it will (4) the world. 1. Wang Mei didnt enjoy learning about DNA. ( ) 2. Who
4、did an experiment in science class this week? _. 3. Does Wang Mei think the experiment they did sounds interesting? _. 4. The air pressure _ is higher than that of the water pushing down from inside the jar. 5.I always wonder what life would be like without computers or mobile phones . _ 中考题型 课堂练 F
5、Brian, Danny and Jenny Yes, she does pushing up on the cardboard 我一直想知道如果没有电脑和手机生活会是什么样子。 1. suggest v. 1. suggest v. 建议，提议建议，提议 1) suggest 1) suggest sthsth. to sb. . to sb. 向某人建议某事向某人建议某事 2) suggest doing 2) suggest doing sthsth. . 建议做某事建议做某事 3) suggest that 3) suggest that 建议建议 4) suggestion n. 4
6、) suggestion n. 建议建议 Language Points: 2. better and better2. better and better 这一句型的结构是：比较级这一句型的结构是：比较级+and+and+比较级比较级 意思是意思是“ “越来越越来越” ”。 例如：张家口变得越来越美丽了。例如：张家口变得越来越美丽了。 Zhang Zhang JiakouJiakou is getting more and more is getting more and more beautiful.beautiful. 3. 3. 【辨析辨析】lie, lay, lainlie, lay
7、, lain与与 lyinglying lie lie vi vi. . 躺，平放躺，平放 过去式过去式laylay，过去分词，过去分词lainlain，现在分词，现在分词 lyinglying He was lying in the shade of the tree. He was lying in the shade of the tree. 他正躺在树他正躺在树 荫下。荫下。 He lay down on his bed. He lay down on his bed. 他躺在床上。他躺在床上。 lie lie vivi. . 说谎说谎 过去式过去式liedlied过去分词过去分词li
8、edlied，现在分词，现在分词lyinglying Im sorry I lied to you. Im sorry I lied to you. 我很抱歉向你撒了谎。我很抱歉向你撒了谎。 He is always telling a lie. He is always telling a lie. 他总是说谎。他总是说谎。 lay lay vtvt / / vivi 放，置放，置 过去式过去式laidlaid，过去分词，过去分词laidlaid，现在分词，现在分词layinglaying Lay it on the table. Lay it on the table. 把它放在桌上。把它
9、放在桌上。 规则变化lie撒谎 自由变化lie是躺 lay是放置和下蛋 变化与say是一样 You shouldnt _ to me. I always believe you. A. lie B. lying C. lay D. lies A 4. careful adj. 小心的;细心的 Be careful! Come down. 小心！下来。 (1) _ _ _ (小心)the glass. Dont break it. (2) _ _!(小心) There is a car coming here. (3)Tom is a c _ student. He often makes mi
10、stakes in the exam. 【点拨】(1)填 Be careful with。 be careful with . . . 意 为“对仔细/ 细心”。 (2)填Be careful。 be careful 意为“当心;小心”，相当于 look out 和take care,可以在祈使句中单独使用。 (3)填careless。句意为: 汤姆是一个粗心的学生。他经 常在考试中犯错误。careless作形容词，意为“粗心的” ，它与careful意思相反;carelessly作副词，意为“粗心 地”，它与carefully相反。 Exercises Exercises . 单项选择(5分
11、钟，10分) ( )1. Bob never does his homework _ Mary. Yes, he makes lots of mistakes. A. so careful B. as carefully as C. carefully D. as careful as ( )2. Do you know this boy? Which boy? The one _ under the big tree. A. lay B. lain C. laying D. lying ( )3. How do you know that she likes singing? I often
12、 hear her _ after class. A. to sing B. sang C. sing D. sings ( )4. They stopped _ , but there was no more sound. A. to listen B. to hear C. listening D. hearing ( )5. My younger brother isnt _ to take care of himself. A. enough old B. old enough C. small enough D. enough small 1. The man is _ (bad)
13、hurt.1. The man is _ (bad) hurt. 2. Dont be _ (scary). You 2. Dont be _ (scary). You will be OK.will be OK. 3. Are you hurt?3. Are you hurt? No, Im not _ (injure). No, Im not _ (injure). 用所给词的适当形式填空。 badly scared injured . 完成句子(5分钟，10分) 1. Dont worry about your son. Its _ _ (没什么严重 的). 2. We neednt _
14、 _ _ (叫救护车). 3. _ _ (小心)！There is something dangerous ahead. 答案: 1. nothing serious 2. call an ambulance 3. Be careful 4. He _ _ _ (尽力赶上)the early bus,but it was too late. 5. Dont worry about him. I can _ _ _ (照顾) him. 答案: 4. tried to catch 5. take care of 1. He didnt agree to go there with us. He _
15、 there with us. 2. Why dont you go swimming with me? Why _ swimming with me? 3. Grandma takes care of my sister every day. Grandma _ my sister every day. 4. You dont have to go home today. You _ home today. 同义句转换。（每空一词） refused to go not go looks after neednt go Homework 1.Finish off the rest exercises. 2.Preview lesson 43.
