1、 Unit4words and expressions1.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，又有对短语释义的
2、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 expressionsListen 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；violentlya violent attackviolent dis
3、likeviolent painviolence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.violentstorm1)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;最终;总有一天;及时最终总有一天at timeson time at
4、one timeall the timeonce 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.A scene B view C atmosphere D sightwater vapournitrogencarbon d
5、ioxideoxygen3.atmosphere n.4.harm n.&v.损害;伤害be harmful to do harm toadj.有害的adj.无害的harmfulharmless对有害吸烟对身体有害。Smoking _ your health.is harmful to5.multiply(数目上)增加，增多；乘；（使）繁殖1)Our problems have multiplied since last year.2)2 and 5 multiply to make 10.4)The plants here multiply rapidly.3)6 multiplied by
6、 5 is 30.=Multiply 6 by 5 to make 30.lielielay动词过去式过去分词现在分词意义搁,放,下蛋laylainlying躺，位于liedliedlying撒谎laidlaidlaying6.lay 1)The naughty boy _ to me that the hen that _ there just now had_ two eggs the day before.A.laid;laid;laid B.laid;lay;lainC.lied;laid;lain D.lied;lay;laid2)翻译:他把他的书放在桌子上。He laid his
7、book on the desk.existence e into existenceexist 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.exist C.existence D.exhibition4)I can hardly exist _ the wage Im getting.Theres no more money left for luxuries.A.by B.in C.on D.int
8、oexistcome into existence7.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 to9.in ones turn 轮到某人,接着Its ones 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 _ he
9、r _ him.You wont _ the things _ happening.你不能阻止事情发生。stopseeingkeep/preventfrom11.puzzle n.谜，谜题vt.&vi (使)迷惑，(使)为难adj.令人迷惑的adj.感到迷惑的n.迷惑，为难puzzlingpuzzledpuzzlementbe puzzled at/by对感到迷惑 我对这道题感到迷惑。I _ the question.was puzzled by12.pull n.&vt.拉；拖；牵引力ant.推从拉出来pushpull out of他们把车子从泥浆中拉出来。They _ the mud.pu
10、lled the car out of13.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.他带她去听音乐会来使她高兴。He took her _ to _.The crowd cheered upto the concertcheer her up14.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 placehappenbroke outbreak 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