八年级上Unit2.doc

八年级上Unit 21. exercise v. 锻炼  n. 锻炼，练习（不可数名词）exercise = do exercise  do morning exercise 晨练do much exercise 做大量练习2. homework 家庭作业  housework 家务  schoolwork 学业  不可数名词do much housework = do lots of housework 做大量家务活 3.      hard : adj. 坚硬的，辛苦的   adv. 努力地        hardly : adv.几乎不 ， 本身表否定意思，和hard没有关系            Ex. He hardly does any housework at home.      hardly ever : 几乎不= hardly  4. once 一次  once a week 一周一次   once a month 一月一次   twice 两次  twice a week 一周两次           n. 时间，不可数名词  time      Ex. I have lots of time to do my homework.                频率副词短语        n. 次数 , 可数名词 , 表做某事次数三次或以上用time            three times a week 一周三次   many times 许多次           Ex. I went to the park many times .  every day 每天   every week 每周 5. two or three times a week 一周两三次    once or twice a week 一周一两次   three or four times a month 一月三四次     three to five times a week 一周三到五次       到  to       或  or 6. use the Internet 用互联网 , 动词短语   use of the Internet 互联网的使用，名词短语    on the Internet 在互联网上   surf the Internet 上网冲浪 7. program = programme n. 节目   Ex. What program do you like best ? = What’s your favorite program ?    favorite … = like… best 最喜爱的 8.          adj. 满的  be full of … 充满了= be filled with…   full      Ex. The bottle is full of water.         adj. 饱的--- hungry adj. 饥饿的             Ex. I’m full . 我吃饱了. 9. maybe : adv. 或许，大概may be : 情态动词may+be , 可能是… Ex. Maybe he is a teacher. = He may be a teacher. 10. at least 至少 Ex. He sleeps for at least eight hours a day . He exercises at least twice a day.       at most 最多 11. junk food 垃圾食品   fast food 快餐 12. coffee 不可数名词 13. health n. 健康   healthy adj. 健康的---- unhealthy adj. 不健康的  healthily adv. 健康地in good health = healthy 健康的     keep/ stay in good health = keep / stay healthy 保持健康   a healthy breakfast       a healthy lifestyle 健康的生活方式    eat healthily 饮食健康14. the results of … …的结果   as a result 结果   Ex. As a result , he passed the exam . 15. 百分数表达法：   基数词+ percent ( 没有复数形式)    20%  twenty percent     百分数做主语时，谓语动词单复数形式看百分数后的名词单复数来定.    Ex. Fifty percent of the food goes bad.       Fifty percent of the vegetables go bad. 16. although= though 虽然，不与but连用   Ex. Although my grandma is old, she looks very strong and healthy.       = My grandma is old , but she looks very strong and healthy. 17. through 内部穿过  across 表面横过   over 越过18.       n. 心智，头脑，思想 （不可数名词）   mind          v. 介意 mind doing sth  介意做某事                  mind sb’s doing sth 介意某人做某事                    Never mind . 一点不介意. 19. such a / an +形 + 名词单数     Ex. That’s such a beautiful photo .    such +形 + 名词复数/ 不可数名词    Ex. This is such nice food.    so +形    Ex. This food is so nice . 20. die v. 死亡   death n. 死亡   died adj. 死亡的  die --- dying 现在分词 lie --- lying 21. writer n. 作家  --- write v. 写 22. however 然而  whatever 无论什么  23. than 比, 比较级标志 24. more than 多于 = over  ---- less than 少于25. 频率副词：用于be / 情态动词/ 助动词后，实义动词前   always 100%   usually 80%   often 30-50%  sometimes 10-20%  hardly ever 5%  never 0%总是          通常          经常          有时               几乎不       从不26. sometimes = at times ( 句末) 有时 27. how often : 多久一次，对频率副词和频率短语提问.    Ex. How often do you go shopping ?       I go shopping once a week .        How often does he exercise ?        He often exercises. how long : 1) 多久，对for+一段时间提问          2) 多长，对物体长度提问Ex. How long did you stay in shanghai ?     I stayed in Shanghai for five days.     How long is your desk ?     It’s one meter. how soon : 多久，对in+一段时间提问，用于将来时 Ex. How soon will you come back?     I will come back in three days . how many + 名词复数: 多少，对数量提问how much + 不可数名词：多少，对数量提问how much : 多少钱，对价钱提问how far: 多远，对两地间的距离提问Ex. How far is it from your home to school ?    It’s 5 miles . how many times : 多少次，对次数提问Ex. How many times have you been to Beijing ?     I have been to Beijing twice. 28. go shopping = do some shopping 去购物29.       adj. 免费的 Everything is free here .    free         adj. 有空的= have time ---- busy 繁忙的   Are you free this Monday ? = Do you have time this Monday ?    in one’s free time 在某人的空闲时间30. how come = why 为什么   Ex. How come you didn’t tell me about it ? = Why didn’t you tell me about it ? 31. have … lesson 上…课 Ex. We are having English lesson . 32. What kind of … 什么种类的…? 33.   be busy doing sth  忙于做某事      be busy with sth 忙于某事  34. want to do sth 想要做某事 want sb to do sth 想要某人做某事35. be good for … 对…有好处    Ex. We all know that milk is good for our health .    be bad for… 对…有害处   Ex. Smoking is bad for our health .    be good at …= do well in … 擅长于…    Ex. He is good at English . = He does well in English .   be good with … 与…相处的好   Ex. He is good with everyone in our class . 36. ask sb about sth 问某人关于某事   ask sb for sth 向某人要某物   Ex. We shouldn’t often ask our parents for money .   ask sb for help 向某人求助   Ex. You should ask the police for help.   ask sb to do sth 。