1、Unit4words and expressions,1. 学生能够了解本单元单词的基本用法。 2. 学生能够辨析易混淆词的用法，并能熟练运用。 3. 学生能够掌握重点难点次的拓展及其用法。 4. 学生能够用所学单词翻译或造出句子，提升自己的句子表达和写作水平。,本节课为unit4 的单词和短语教学，单词本来是零散的，易混的，但是本节课运用了从点到线，从线到面的词汇教学方法，使重点难点单词成了容易掌握的单词块，单词串，从而实现了知识即词汇的重新组合，这一点也符合新的英语教学大纲的要求。首先，用听本单元的单词录音进行导入，让学生从整体上感知下单词。然后，对重点单词进行讲解，既有对单词用法的拓展，
2、又有对短语释义的延伸。讲解和巩固练习结合，让学生加深理解词汇用法并当堂掌握。而且，练习形式多样化，有翻译，有填空，有选择，从各个角度来对词汇关进行突破。除此之外，加入的图片更是恰到好处，和例句相结合，加深了学生对词汇的印象和理解。,words and expressions,Listen to the words and expressions of unit4,and pay more attention to their pronunciation.,1.violent adj.猛烈的；激烈的；,adv. 猛烈地；激烈地； n. 猛烈；激烈；暴力；,violently,a violent
3、attack,violent dislike,violent pain,violence,汉译英,猛烈的进攻极其的厌恶 极度痛苦,船在海上强烈的风暴中沉没。The boat sank in a _ _ at sea.,violent,storm,1)Fred and Jim did not like each other at first, but in time they became friends. 2)We were just in time for the bus. 3)You will realize how your parents love you in time.,及时; 最
4、终; 总有一天;,及时,最终,总有一天,at times on time at one time all the time once upon a time,一直 按时; 准时 有时; 不时 曾经，一度 从前,2.in time,（1） 大气层 地球的大气层包括水蒸气、二氧化碳、氧气、氮气和其他气体。 The earths atmosphere includes 、 、 、 and other gases. （2） 气氛 Completely lost in the exciting of the football match, Tom didnt feel his pocket picked
5、. A scene B view C atmosphere D sight,water vapour,nitrogen,carbon dioxide,oxygen,3. atmosphere n.,4. harm n.伤害be harmful to do harm to,adj. 有害的adj. 无害的,harmful,harmless,对有害,吸烟对身体有害。 Smoking _ your health.,is harmful to,5. multiply (数目上)增加，增多；乘；（使）繁殖,1) Our problems have multiplied since last year.,
6、2) 2 and 5 multiply to make 10.,4) The plants here multiply rapidly.,3) 6 multiplied by 5 is 30.,= Multiply 6 by 5 to make 30.,动词,过去式,过去分词,现在分词,意义,搁,放,下蛋,lay,lain,lying,躺，位于,lied,lied,lying,撒谎,laid,laid,laying,6. lay,1)The naughty boy _ to me that the hen that _ there just now had_ two eggs the day
7、before. A. laid; laid; laid B. laid; lay; lain C. lied; laid; lain D. lied; lay; laid,2)翻译: 他把他的书放在桌子上。,He laid his book on the desk.,existence n.,come into existence,exist on 靠为生,exist in 存在于之中,1)Does life _ (存在) on Mars? 2)When did the world _ (产生) ? 3)He doesnt believe in the _ of God?A. life B.
8、exist C. existence D. exhibition 4) I can hardly exist _ the wage Im getting. Theres no more money left for luxuries.A. by B. in C. on D. into,exist,come into existence,7. exist vi.,这只狗已经生了个5只小狗狗。 The dog _ five baby dogs.,8. give birth to 生(孩子);产生,has given birth to,9. in ones turn 轮到某人, 接着Its ones
9、 turn to do sth (轮到)该某人做.in turn 依次, 反之, 反过来by turns 轮流;交替地,10.prevent from 阻止做某事,stop sb./sth.(from) doing keep sb./sth.from doing,Lynns parents tried to _ her _ him.林恩的父母企图阻止她和他见面。You wont _ the things _ happening.你不能阻止事情发生。,stop,seeing,keep/prevent,from,11.puzzle n. 谜，谜题vt.&vi (使)迷惑，(使)为难,adj. 令人
10、迷惑的adj. 感到迷惑的n. 迷惑，为难,puzzling,puzzled,puzzlement,be puzzled at/by,对感到迷惑,我对这道题感到迷惑。,I _ the question.,was puzzled by,12.pull n.&vt. 拉；拖；牵引力,ant. 推从拉出来,push,pull out of,他们把车子从泥浆中拉出来。,They _ the mud.,pulled the car out of,13.cheer up : 欢呼，喝彩，感到高兴,当看到球队的到来，人群欢呼起来。 _ when they saw the team arrive.,他带她去听
11、音乐会来使她高兴。 He took her _ to _.,The crowd cheered up,to the concert,cheer her up,14.break out (战争,争吵,疾病等)爆发,它与happen, take place, come out等词的用法一样， 是不及物动词，不能带宾语，不能用于被动语态！,happen： break out： take place：,强调偶然性的发生,指战争,灾难,疾病的发生,强调必然性或者按事先的安排或计划发生,happen break out take place1.The Olympics _ every four years.2.How did the accident _?3.Word War _ in 1914.,take place,happen,broke out,break down 打破; 毁掉; 破除; 坍塌; 坏掉 break in 破门而入; 打断 break away from 脱离政党; 打破陈规 break through 突围; 突破 break up 打碎; 拆散; 分裂; 分解 break ones word/promise食言; 说话不算数,
