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1、Unit 2 How often do you exercise?知识点1. 疑问词 how 的用法(1)怎样，用什么手段，方法/交通工具How are you? / How is she?How did he do it? / I dont know how to swim.How do you come to school?(2) 情况如何（指身体健康状况） How are you?(3) how many，how much 表示多少其中how much还可以表示钱数。how many 后接可数名词复数，how much 接不可数名词。How times do you go to the
2、park? How water do we drink every day?How are those pants?How pens do you want? (4) how often 是对动作发生的“次数”提问，询问的是频率“多久一次”回答：Every day. / Once a week. / Three times a week. / Often. / How often do you play tennis?How often do you surf the Internet？how 问句(1) how far 多远 How far is it from your home to s
3、chool?(2) how long 多长时间 (3) how old 询问年龄 How old is your sister?(4) how often 多久一次 How often do you exercise?(5) how soon 多长时间（将来时） 询问多久以后会发生某事 How soon will she come back?(6) how many/much 询问数量 how many + 可数名词 how much +不可数名词(7) how much 询问价格 How much is the skirt?2.time 表示不可数名词，意为“时间”。表示可数名词，意为“次数
4、，倍数”What time is it?I go to the movies three times a week.注意“次数”的表达方法一次 once，两次 twice，三次或三次以上用基数词加上 times：three times, five times, one hundred times表示“几次”的表达方法是：once a day/ a week/ a month/ a yeartwice a day/ a week/ a month/ a year2.exercisev./ n. shopv./ n.He often exercises on weekends.We often d
5、o / take exercise on weekends.We often shop on weekends.There are many shops in the neighborhood.4. as for 意为“至于”As for fruit，I eat it sometimes.As for him，I never want to see him here.至于他，我永远不希望在这里见到。5.My mother wants me to drink it.我妈妈想要我喝。want to do sth. 想要做某事want sb. to do sth. 想要某人干某事ask sb. to
6、 do sth. 叫某人做某事tell sb. to do sth. 告诉某人去做某事help sb. (to) do sth. 帮助某人做某事Let sb. do sth. 让某人做某事6.be good for 表示“对有益（有好处）”be good at 擅长于 (后接名词或动名词) e.g. Shes good at sports. e.g. Tom is good at playing soccer. be good with 和相处的好 多读书对我们有好处。Drinking milk is good for your health.喝牛奶对你的健康有益。Reading Englis
7、h is good for studying English.对英语对学习英语有益/有帮助。Reading in bed is bad for your eyes.在床上读书对你的眼睛有害。7.usually when I come home from school通常是在我从学校回家时When + 从句当时候I often stay at home when it is rainy.8. try to do sth. 尽量/尽力做某事 try doing sth try ones best to do sth I try to eat a lot of vegetables.Ill try
8、to learn English well. 我会尽量尝试学好英语的。You must try to take more exercise. 你必须尽量多做运动。9. I look after my health.look after 照顾 look for 寻找My brother is ill. I have to look after him today.我的弟弟病了。我今天不得不照顾他。take care of 照顾10.help sb.(to) do sth. 帮助某人做某事= help sb. with sth.(n.) 帮助某人做某事She often helps me lear
9、n math. 她经常帮助我学数学。She often helps me with math. 11. be the same as / be different from 与一样/与不同She looks the same as her sister. 她看起来跟她的妹妹很像。This book is different from that one. 这本书跟那本书不一样。12. kind of = a little有点儿 a kind of 一种 all kinds of 各种各样的I think Im kind of unhealthy. 我想我有点不健康。13. maybe (adv.
10、) = perhaps 也许，maybe 与may be 的区别：maybe 意思是“可能”,常放于句首；may be 意思是“可能是”，放于主语之后。可能Maybe he knows the answer.Maybe theyll go skateboarding. He may know the answer.14. although = though 虽然但是Although hes ill, he goes to school on time.虽然他生病了，但他还是准时上学。She eats a lot of chocolate, although she is very fat.虽然
11、她很胖，但她却吃许多的巧克力。15. A lot of = lots of = many/ much 许多A lot of vegetables help you to keep in good health.16.keep + 形容词表保持某种状态 Keep doingsth.keep healthy = stay healthyKeep quiet! The baby is sleeping.那婴儿正在睡觉，保持安静！We must keep our classroom clean.我们必须保持我们的教室干净。17. 注意 sometimes 与几个形似的词的区别。(1) sometime
12、 是副词，意为“在某个时候；某时”Will you come again sometime next week?下周的某个时候你会再来吗？She was there sometime last year.她去年某时去过那。(2) some time 是名词词组，意为“一段时间”，做时间状语用I will stay here for some time.我将在这呆一段时间。He worked for that company for some time.他为那家电脑公司工作了一阵子。(3) some times 是名词词组，意为“几次，几倍”I met him some times in the
13、 street last month.上个月我在街上遇到他好几次了。The factory is some times larger than that one.这间工厂比那间大好几倍。(4) sometimes 是频度副词，意为“有时”He sometimes goes skateboarding on weekends.他有时周末去滑滑板。18. look（看起来），sound（听起来），smell（闻起来），taste（尝起来），feel（觉得），seem（好象），become，grow（变得） ,get（变得）等词在英语中可用作系动词，后跟形容词作表语。That sounds interesting. 那听起来有趣。It tastes good.这味道好。The music sounds very sweet.这音乐听起来很入耳。