Unitampnbsp1ampnbspLifeampnbsponampnbspMars

　　unit 1 life on mars
　　一. 教学内容：
　　unit 1 life on mars
　　二. 教学目标：
　　本单元重点词汇、短语和语言点知识
　　【具体教学过程】
　　9b unit 1
　　一、重点单词
　　机器人 n. robot
　　片剂，药片n. pill
　　网，网络 n. net
　　吉他 n. guitar
　　太阳镜 n. sunglasses
　　帐篷 n. tent
　　储藏，存储 v. store
　　表面n. surface
　　干缩的，干的adj. dried
　　想象，设想v. imagine
　　拥挤的adj. crowded
　　被污染的adj. polluted
　　可以指望；怀希望地adv. hopefully
　　宇宙飞船n. spacecraft
　　航天飞机n. space shuttle
　　人；人的n. & adj. human
　　发展v. develop
　　移居者n. settler
　　流行的，时髦的adj. fashionable
　　各种各样的，不同的adj. various
　　巩固练习：
　　1. in summer travelers wear their s______________________ because of the bright sunshine.
　　2. h_____________________, we can build a better world on mars.
　　3. my friend is musical. he is good at playing the g____________.
　　4. when you are ill, you should take p___________________ on time.
　　5. it’s great that r________________ do all the work for us.
　　6. if you go camping, you should take a t________________ with you.
　　7. fishing n________________ is useless on the moon.
　　8. last summer holiday i went to beijing and i took lots of photos with my c______________
　　9. scientists should d ________ plants that can grow on mars.
　　10. the boots will probably become f _________ .
　　二、重点短语
　　1、与某人相处得好 get on well with sb.
　　2、认识某人 get to know sb
　　3、被照顾 be cared for
　　4、使我不开心 make me unhappy
　　5、三副太阳镜 three pairs of sunglasses
　　6、避免漂浮 prevent floating
　　7、连接到氧气罐 be connected to the air tank
　　8、在星球的表面 on the surface of the planet
　　9、到21XX年为止 by the year 2100
　　10、越来越拥挤和受到污染 more and more crowded and polluted
　　11、3/8的引力 three-eighths of the gravity
　　12、运送大量的人 carry large numbers of people
　　13、飘进太空 float away into space
　　14、不同的设计供定居者选择 different designs for settlers to choose from
　　三、课文结构和语言点知识
　　paragraph 1: why we move to mars?
　　1. moving to mars （l.1）
　　move :
　　① move to 搬家，搬迁
　　他家去年搬到加拿大去了。
　　his family _________________ _________ canada last year.
　　他们正准备搬到北京。
　　they are__________________ ________beijing.
　　② move 用作动词，可以表示＂移动，前进，走棋＂。
　　don’t move!
　　该你走棋了。
　　it’s your turn ________ _____________!
　　③ move 用作动词还可以表示＂使感动；打动＂。
　　我被这部电影深深地打动了。
　　i ________ deeply ___________ by the film.
　　2. at the moment it may be difficult to imagine, but many people believe that, by the year 2100, we will live on the planet mars.（l. 2）
　　① may be 可能是　情态动词may 动词原形
　　这可能是一本好书。
　　this may be a good book.
　　火星上可能有空气。
　　there may be air on mars.
　　maybe 副词 probably，修饰动词、句子。
　　maybe this is a good book.
　　maybe there is air on mars.
　　② it’s adj. （for sb.）to do sth.
　　对我们来说学好英语很有必要。
　　it’s necessary for us to learn english well.
　　③ imagine v. （adj.）imaginative （n.）imagination
　　你能想象没有电脑的生活吗？
　　can you imagine life without computers?
　　想象一下生活在月球。
　　imagine living on the moon.
　　想象一下火星上的生活可能是什么样。
　　imagine what life could be like on the mars.
　　3. our own planet, earth, is becoming more and more crowded and polluted.（l. 3-4）
　　①more and more 越来越多
　　越来越多的人/污染
　　more and more people / more and more pollution
　　越来越少（不可数）
　　less and less
　　越来越少（可数）
　　fewer and fewer
　　②比较级 比较级：＂越来越＂
　　越来越容易/越来越强大
　　easier and easier / stronger and stronger
　　越来越拥挤/越来越受到污染
　　more and more crowded / more and more polluted
　　4. hopefully, we can start again and build a better world.（l. 5）
　　n./v. hope adj. hopeful adv. hopefully
　　无论我们身在何地，都不能失去希望。
　　wherever we are, we should not lose our ______________.
　　充满希望
　　be full of hope: be hopeful
　　他有希望赢得第一名。
　　he is _______________ to get the first prize.
　　______________________, he will win the first prize.
　　5. here is what life might be like.（l. 6）
　　宾语从句：主前动后是语序。
　　这部电影展示了老北京的样子。
　　this film shows what old beijing was like.
　　你能告诉我他住哪里吗？
　　can you tell me where he lives?
　　paragraph 2: transport on mars
　　1. first of all, the transport should be much better.（l. 7）
　　① first of all首先（最为重要的是）
　　首先把所有单词记住。
　　first of all, remember all the words.
　　at first 起先，开始。
　　at first, i find english a bit difficult.
　　②much better
　　much 比较级 表示程度
　　我的头发比她的长很多。
　　my hair is much longer than hers.
　　he is _________ busy ____ help me.
　　a. so much , that b. much too, to c. too much, to d. so much, to
　　修饰比较级的副词：
　　even, far, a lot, a little, a bit
　　2. our spacecraft are too slow to carry large numbers of people to mars.（l. 7-8）
　　① spacecraft 复数__________________________
　　chinese, japanese, spacecraft, fish, sheep, deer（单复数同形）
　　② too … to 太……以致于不能……
　　she is too young to look after herself.
　　＂too…to＂结构可以转换成 ＂so …that…＂或 ＂not 形容词 enough＂句型。
　　the little boy is too short to reach the apple.
　　the boy is __________ short ____________ he can’t reach the apple.
　　the boy isn’t ____________ __________________ _________ reach the apple.
　　③ large numbers of 许多的，大量的
　　a（large）number of a（great）number of
　　很多树
　　large numbers of trees
　　the number of … ……的数量
　　学生的数量
　　the number of the students
　　3. the journey might take only a very short time in space shuttles that travel at half the speed of light.（l. 9-11）
　　① 比较: 旅行 journey, travel, tour, trip, voyage
　　② take 在这儿表示 ＂花时间＂.
　　it takes（took）sb. some time to do sth.
　　同意短语:
　　sb. spend time/money（in）doing sth. / on sth.
　　她每天花半小时练习跳舞。
　　it ______________ her half an hour _______ ____________________dancing.
　　she ______________ half an hour _______ ______________________ dancing.
　　she ______________ half an hour ______ ______________________.
　　（sth.）cost sb. money 某物花了某人多少钱
　　③ speed n.
　　at full/ top speed 以全速
　　at a high /low speed
　　at a speed of… 以……的速度
　　以光速的一半的速度
　　at half the speed of light
　　v. speeded （sped）
　　speed up 加速
　　paragraph 3: food, water and air
　　1. humans need food, water and air to survive.（l. 12）
　　① human a human humans
　　germans walkmans policeman
　　②need（行为动词）翻译成＂必须＂，＂需要＂
　　1）need sth. to do sth. 需要某物去做某事
　　我们需要一些水喝。
　　we need some water to drink.
　　他们需要一些人去帮他们。
　　they need some people to help them.
　　2）（不）需要做某事
　　（don’t）need to do sth.
　　我不需要思考这个问题。
　　i don’t need to think about this question.
　　③ need（情态动词）翻译成＂必须＂，＂必要＂
　　（不）必要做某事
　　need（not）do sth.
　　你不必担心。
　　you needn’t worry.
　　④ need（名词）需要
　　the need for money
　　the need to improve my english
　　people in need
　　2. scientists will develop plants that can grow on mars.（l. 12）
　　develop vi./ vt.
　　工业在迅速发展。
　　industry is developing rapidly.
　　这个镇是由一个渔村发展起来的。
　　the town developed from/ out of a fishing village.
　　the fishing village developed into a town.
　　he has developed the habit of getting up early.
　　the pioneers are developing the waste land.
　　develop natural resources/ solar energy
　　the photo will look nice when they are developed.
　　培养兴趣
　　___________________ _____________________
　　3. however, nobody is not sure if these plants can produce enough water.（l.14-15）
　　be sure of/ about 确信
　　are you sure of/ about his coming in time?
　　be sure to do 一定会，一定要
　　she is sure to find out the truth tonight.
　　make sure（of）确保
　　he arrived at the cinema early to make sure of a seat.
　　paragraph 4: gravity
　　1. the gravity on mars is only about three-eighths of the gravity on earth.（l.16）
　　分数的表达方法： 分子用基数，分母用序数；分子大于一分母加＂s＂
　　三分之一
　　one third one out of three
　　九分之二
　　two ninths
　　百分数
　　percent/ per cent
　　我们年级有五分之一的学生来自其他城市。
　　one fifth of the students in our grade are from other cities.
　　70%的水来自于海洋。
　　70 percent of the water is from sea.
　　2. to prevent this, humans on mars have to wear special boots to make themselves heavier.（l.19-20）
　　prevent （vt.及物动词）防止，预防
　　prevent diseases
　　使……不做某事，阻止……做某事
　　prevent sb. from doing sth.
　　姚明的腿受伤了。这使他不能打篮球。
　　yao ming’s leg is hurt. this prevents him from playing basketball.
　　paragraph 5: life
　　compared with life on earth, life on mars will be better in many ways.（l.23）
　　1. 过去分词作状语。过去分词与主句的主语是动宾关系，即过去分词与主语是被动关系。
　　（1）the teacher came into classroom into the lab, followed by some students.
　　句意为：老师进入教室，后面跟了一些学生。
　　teacher 与followed 形成被动关系
　　（2）given a chance, i can surprise the world.
　　巩固练习:
　　（1）____in the mountains for a week, the two students were finally saved by the local police.
　　a. having lost b. lost c. being lost d. losing
　　（2）the flowers his friend gave him will die unless（除非）______ every day.（XX四川高考）
　　a. watered b. watering c. water d. to water
　　2. in many ways 在很多方面
　　by the way 顺便问一下
　　make one’s way 排除困难前进
　　in one’s way 碍事，妨碍
　　on one’s way 在去……的路上
　　in this way 用这种方法
　　the soldiers cut a way through the forest.
　　开出一条路
　　this way, please.
　　man is trying to find ways to stop pollution.
　　paragraph 6: study
　　paragraph 7: some disadvantages on mars