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1、Unit2 How often do you exercise?【重點語法】（初中英語微信公眾號：ID:chuzhong-yingyu）1. 頻率副詞: always, usually, often, sometimes, never頻率副詞在句中通常放在實義動詞之前, be動詞或助動詞之后。常用于一般現(xiàn)在時態(tài)中。2.“次數(shù)”的表達方法一次 once， 兩次twice，三次或三次以上：基數(shù)詞+ times, 如：three times, five times,3. how often“多久一次”問頻率，回答常含有頻率詞組或短語。常見的how疑問詞：1）How soon 多久（以后）How so

2、on will he be back?他多久能回來？He will be back in a month. 他一個月后能回來。2）how long “多久”How long did it take you to clean the house? 你打掃房子用了多久？It took me half an hour to clean the house. 我打掃這房子用了半小時。3）How many+名復How much+不可名“多少” 問數(shù)量（how much 還可問價格）【重點短語】（初中英語微信公眾號：ID:chuzhong-yingyu）1. go to the movies 去看電影 2

3、. look after = take care of 照顧3. surf the internet 上網(wǎng) 4. healthy lifestyle 健康的生活方式5. go skate boarding 去劃板 6. keep healthy=stay healthy 保持健康7. eating habits 飲食習慣 8. take more exercise 做更多的運動 9. the same as 與什么相同 10. be different from 不同 11. once a month一月一次 12. twice a week一周兩次 13.make a difference

4、to 對.有影響/作用 14. most of the students=most students15. shop=go shopping=do some shopping 購物 16. be good for 對.有益 17. be bad for 對.有害 18. come home from school放學回家 19. of course = certainly = sure 當然 20. get good grades 取得好成績 21. keep/be in good health 保持健康 22. take a vacation 去度假 【詞語辨析】（初中英語微信公眾號：ID:

5、chuzhong-yingyu）1. maybe / may bemaybe 是副詞，意為“大概， 可能，或許”，一般用于句首。May be是情態(tài)動詞，意為“可能是.，也許是.，大概是.”.The baby is crying. Maybe she is hungry.The woman may be a teacher.2. a few / few / a little / little圖片People can live to 100, but few people can live to 150.There is little time left. I wont catch the fir

6、st bus.Could you give me a little milk?3. hard / hardlyhard作形容詞，意為“困難的，艱苦的，硬的”；作副詞，意為“努力地，猛烈地”。hardly為副詞，意為“幾乎不”。The ground is too hard to dig.I can hardly understand them.Its raining hard. The people can hardly go outside.4. As for homework , most students do homework every day . as for.意思是“至于；關于”，

7、+名詞、代詞或動詞的-ing形式（即動名詞）。如：As for him，I never want to see him here.至于他，我永遠不希望在這里見到。As for the story，youd better not believe it.關于那故事，你最好不要相信。5. That sounds interesting.這是“主語+系動詞+表語”結構的簡單句。sound（聽起來），look（看起來），smell（聞起來），taste（嘗起來），feel（覺得），seem（好象），grow（變得）,get（變得）等詞在英語中可用作系動詞，后跟形容詞作表語。如：It tastes goo

8、d. 這味道好。The music sounds very sweet. 這音樂聽起來很入耳。The smoke grew heavier and heavier. 煙霧變得越來越濃了。6. percent 名詞，意為“百分之” 百分數(shù)的表示方法：基數(shù)+ percent (不用復數(shù)形式)，percent做主語時，謂語動詞的數(shù)要根據(jù)其后面的名詞來確定。50：fifty percent百分之五十Fifty percent of the apples are bad. 50%的蘋果都壞了。Twenty percent of the meat is in the fridge. 20%的肉都在冰箱7.

9、 not at all 意為“一點也不”，not應放在be動詞、情態(tài)動詞或助動詞之后。The story isnt interesting at all. 那個故事一點也沒有趣。8. It is + adj. to do sth. 做某事是的。It is interesting to play computer games. 玩電腦很有趣。9. take, spend, payIt takes sb. some time to do sth. 意為“花費某人時間來做某事”。人(sb.) spend 時間/錢 on sth. “買某物花了錢”。人(sb.) spend 時間/錢 (in) doing“花費多少時間來做某事”。pay 的主語必須是人，而“花錢買某物”為pay.for.10. however 副詞，意為“然而，可是”，表示轉折關系，可放在句首、句中、句末。