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1、Words and expressionsUnit 7v Have you ever dreamed of your future hometown?Is it much better or much worse than today?Here is what I expect my hometown to be In the near future.v Its a green garden with lots of trees,flowers and grasses all round as well as new houses and tall buildings.Born and bro
2、ught up here,you can always hear birds singing, watch birds flying without going out of your doorstep.Sometimes,its hard for you to tell the old trees from the building-some of my neighbours say, there are houses where are trees and flowers. This is just my hometown, my paradise.v Maybe its just a d
3、ream, but Im sure it will come true sooner and later. v1 _cause illnesses such as the common cold,flu and measles.麻疹v2 After a year,she was_of cancer,and she still works happily now.v3 One of the boys in the class had a fever and he soon_other children.v4 The virus is _via physical contact.v5 Simon
4、is not_at the moment.Should I ask him to call you back?v6 We have been asked to_our presentation to 5 minutes maximum.Virusescuredinfectedtransmittedavailablelimitv7 He doesnt often get flu,but when he does he really_.v8 Normally,people and animals that are_are weak and unable to protect themselves
5、from attack.suffersdefenceless1 live with 忍受(不愉快的事)，与住在一起vYou must live with the fact you are an adult.vNo matter how bad the situation may be, you must live with it.2.deadly 致命的；极有害的；非常的Cancer is a deadly disease.癌症是一种致命的疾病。A deadly silence filled the class.教室里极其安静。3.imaginary 想象中的；虚构的The story is
6、not real, it is only imaginary.imaginative 富于想象力的；爱想象的an imaginative child 有想象力的孩子imaginable 可想像的；想像的到的4 false adj 错误的，假的，伪造的vfalse tales of bravery. 不真实的英勇故事vfalse teeth 假牙vfalse documents 伪造的文件5. Infect 传染；感染（精神）Infect someone with 将传染给某人be/become infected with 感染上，沾染上Some of them became infected
7、with bird flu and diedHer spirit infected me a lot.6 via prep. 凭借，通过（某种手段或某人），经过，经由 (1)by way of: 经过：I went to Beijing via Shanghai. 经过上海到北京(2) by means of:通过（某种手段或某人），凭借：I sent the letter via airmail. 通过空邮寄信7 prevention n 预防，阻止，防碍 v prevent vt v prevent sb (from) doing sthv =stop sb( from )doing st
8、hv =keep sb from doingvThey prevented us from winning. 阻挠我们获胜8.persuade 说服，劝服，使某人相信persuade sb 劝服，说服某人persuade sb to do sth 说服某人做某事persuade sb into (doing) sth 说服某人做某事persuade sb out of (doing) sth 说服某人不要做某事persuade sb of sth 使某人相信某事persuade sb that从句 使某人相信9.defenseless 无防备的defense n & v 防御；防卫defend
9、 v. 防卫；保卫defensive 防御用的；防御性的10.unprotected 无保护的；无防卫的v. protect 保护；保卫；防御protect sb /sth from/against 保护某人或某物使其免受You need warm clothes to protect you against the coldn. protection 保护 adj. protective 保护的11. die of 病（饿、冻）死v die of（死于年老/情感/饥饿/疾病）v die from（死于其他原因,也可用于死于疾病）v die for（为而死）vbe dying垂死 vbe dy
10、ing for sth.想某物想得要死 vbe dying to do sth非常想做某事vIn the old times, many people hunger and cold. The fish in that river all polluted water.Many passenger the terrible traffic accident.died ofdied fromdied from12. lack n & vt/ vi 缺乏；短少作名词时，常用 lack of 缺乏； 缺少She showed a lack of humour.(可加a)I cannot buy th
11、e bike because of my lack of money.vt & vi 缺乏，短少，没有 常和介词for 搭配（用于否定句）vI cant buy the car because I lack(vt.) money. vShe doesntt lack(vi) for money.v(作不及物动词时 常和介词for 搭配（用于否定句)vbe lacking in (wisdom,courage,humor)缺乏(某种品质、特点等）不够vHe seemed to be lacking in courage.13 proper adj 合适的，适当的（没有比较级）It isnt pr
12、oper to telephone him at this late hour.A proper tool for the job 适用于做这个工作的工具(常与介词 for 搭配)14. available 可利用的；可达到的；有效的You will be informed when the book is available.15 discourage 使泄气；使失去信心vDont let one failure discourage you,try again.vdiscourage sb from doing sth 劝阻某人做某事vdiscouraged 感到沮丧的vdiscourag
13、ing 令人沮丧的vencouraged 受到鼓舞的encouraging 令人鼓舞的16.cheer 使高兴；使鼓舞;欢呼；喝彩cheer sb up Your visit has cheered the sick man up.They all cheered up at the news. Everyone was cheered by the good news.The boys cheered their football team.cheer n. 欢呼声A cheer arose from the crowd when he came.17. Suffer from 遭受（痛苦、
14、疾病、损失等）Every night he suffers from headache.They suffered huge losses in the earthquake. suffer pain/hunger/ punishment suffer great losses18.recover vt & vi 恢复；康复，弥补She recovered her health.I think she will recover soon.recovered adj. 痊愈的be recovered from (illness)Are you recovered from your illnes
15、s?19.contrary adj & n 相反的；相对的； 反面Hot is the contrary of cold on the contrary 正相反，反之I am not sick; on the contrary， I am quite well.I thought it was going to clear up.On the contrary,it began to rain.20 for the moment暂时，目前 for a moment 一会儿，片刻（与延续性动词连用）at any moment/ time随时 at the moment目前，现在;那时at tha
16、t moment 在那时 the moment 一就 in/after a moment马上；过了一会儿(in将来/过去时态 after过去式)21.（be)free from 不受的影响,无的He wants to live a life entirely free from trouble.The child is free from care.(be)free of 远离； 摆脱If your wages are very small, you will be free of income tax.contraryv(adj.) The boy was swimming in a dir
17、ection contrary to the current.v(adv.) He passed the examination, contrary to what I expected.v-You must be tired.v-On the contrary , I feel wide awake.v1.He got hurt yesterday.He is now under_(治疗）in the clinic.v2.Dont let one failure_（气馁）you,try again.v3.He _(说服）her to go to school,even though she did not want to.v4.After SARS we all realize that_(预防）is more important than cure.v5. You arent wearing_(适当的）clothes for this hot weather.treatentdiscouragepersuadedpreventionproper