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1、8B Unit 2 WaterP151. use v. 使用use sth. to do =use sth. for doing 用某物来做某事 be used to do =be used for doing 被用来做某事 be used to doing 习惯于做某事used to do sth. =often did sth.过去常常做某事 useful a. 有用的be useful to 对有用 useless a. 无用的P161. valuable a. 有价值的；宝贵的=precious-more valuable-most valuable value n. 价值2. gol
2、d n. 黄金；金子gold coin金币goldfish金鱼 golden a. 金（黄）色的；美好的golden ages 黄金时代3. litre n. 升two litres of water二升水 millilitre n.毫升4. day n. -daily a.每天的； =everydayadv. 每天=every day5. exercise v. 锻炼exercise regularly 有规律地锻炼 exercise n.1)exercise 泛指“锻炼”时，做不可数名词，如：take exercise 锻炼身体take more exercise 多锻炼 2)exerci
3、se 表示“体操”或“练习（题） ”时是可数名词，要用复数形式。如： do morning exercises 做早操， do eye exercises 做眼保健操do English exercises做英语练习6. amount n. 量；数量the amount of water 水的数量 a huge amount of 或 huge amounts of + 不可数名词：大量的 a large number of + 可数名词：大量的7. increase v. 增加；增多 -decrease v. 减少；减小increase by 50增加了 508. remain v. 保持；
4、留下=keep9. freeze v. 使结冰 -froze-frozen frozen a. 冷藏的；结冰的； 惊呆的frozen ground结冰的地面frozen food 冷冻食品 freezing a. 严寒的；极冷的in freezing weather在极冷的天气里10. become v. -became-become变得 +adj. become happybecome even happier11. liquid n. 液体solid n. 固体gas n. 气体harmful gases 有害的气体12. a half 或 one half 二分之一a quarter 四
5、分之一one-third 三分之一 two-thirds13. cover v. 覆盖；涉及n. 封面 be covered with v.被覆盖be covered with snow14. chemical a. 化学的a chemical change 一个化学变化n. 化学物质；化学品many chemicals 许多化学品produce a chemical 产生一种 chemistry n.化学be good at chemistry 擅长化学a chemistry book/ teacher/ lesson chemist n. 药剂师；化学家15. symbol n. =mar
6、k; sign符号；象征；标志the chemical symbol for water 水的化学符号16. putin the correct order v.把按正确的顺序排列17. flow v. -flowed-flowed流；流动flow into the sea流入大海stream n. 小溪18. rise vi. rose risen (不及物动词， 后面不可以跟名词 。后面 跟名词 的用及物动词： raise) rise =go up 上升 =stand up 起立 =get up 起床19. raise v. raised raised 提高；升高；养育；筹集raise m
7、oney for the SPCA为爱护动物协会筹钱raise your hand 举起你的手 = put up your handraise your voice 提高你的声音20. fall v.-fell-fallen跌倒；落下n. 秋天fall asleep 入睡21. feel v. -felt-felt感觉feel sleepy 感到困22. cloud n. 云 clouds pl. -cloudy adj.多云的；阴天的23. talk to me/ him =talk with me/ him跟我 / 他谈话24. 对表示天气的形容词划线用：What s the weathe
8、r like? 或 How is the weather? 提问。P171. Daisy 黛西 ( 女名 )daisy n. 雏菊2. brush (ones) teeth v. 刷牙 -brushesbrush her teethbrush your teeth3.turn on the tap v. 打开水龙头 - turn off the tap关掉水龙头 turn up v. 调高；调响 -turn down v. 调低；调轻4. be on v. 开着的；上演；亮着的The tap is on. 水龙头开着；水龙头是开着的5. pour v. 倒；涌出washbasin n. 洗脸盆
9、pour into the washbasin涌进脸盆6. vanish v. 突然消失= disappear ; go away suddenlyappear v.出现7. drain n. : a pipe or tube to let waste water flow away下水道8. vanish down the drain v.顺着下水道消失不见了9. voice n. 嗓音；说话声；语态passive voice 被动语态noise n. 噪音sound n. 声音10. say loudly v. =say in a loud voice大声地说say in a low vo
10、ice =whisper低声说11. freeze v. 惊呆 (在本课中的意思) froze frozenDaisy froze. 黛西惊呆住了。12. look around v. 环顾四周13. saw no one =saw nobody =didn tsee anyone 没有看到任何人14. waste v. 浪费n. 废品 waste time doing sth. 浪费时间做某事第 1页 What a waste of time! 多浪费时间呀！15. sound v. 听起来 (连系动词 +形容词 ) 还有： look; smell; taste; feel; turn; g
11、et; become; grow16. impatient a . :angry at having to wait不耐烦的 -patient a.耐心的；病人类似变化的还有：polite a. 有礼貌的 -impolite无礼的 politelyadv.17. sound impatient v.听起来不耐烦18. obey v. 服从；遵守obey the rules 遵守规则 =keep=followobey orders 服从命令 disobey v. 违反；不服从19.faint a . (光、声、味 ) 微弱的a faint sound 微弱的声音a faint smell 淡淡的
12、气味反义词： strong20. drop v.-dropped-dropped 落下；降低n. 滴 a drop of water 一滴水21.It is +adj. + (for sb.) +to do sth. （对某人来说）做某事是怎样的e.g. It is important for us to learn English well.对我们来说，学好英语是重要的。It s necessary to plant trees every year. 每年种树是必要的。It s not easy for me to get here.我到达这里不容易。 (get to =arrive in
13、大 / at =reach)22.It is + adj. + of sb. + to do sth. 若结构中的形容词是指不定式逻辑主语的特征、品质、能力 的，形容词后的介词就 用 “of”e.g. It s kind/ nice/ friendly of youto say so.It s clever of you to work out the maths problem.It s polite of you to wait in line.23.Do you know where I m from ? （宾语从句中 从句要用陈述句的语序 。即：wh- 词 +sb.+ 动词 +其它）e
14、.g. Could you tell me what your name is ?Do you know which is the wayto the nearest post office?你知道哪一条是去最近邮局的路吗？I wonder what s the matter withyou. 我想知道你怎么了。Do you know what s wrong with her? 你知道她怎么了吗？24.I suppose =I think 我认为25. float v. 漂浮 -floating a. 浮动的a floating restaurant n.水上餐厅float floated-floated26. comfort n./ v. 安慰
