1、Unit 2 Section A(la-2d)課前預習第一題答案1、 how often 2、 on weekends 3、 hardly ever 4、 一周一/兩次課前預習第二題答案5、 How often6、 Twice課堂探究探究一答案1、D 2、How often does課堂探究探究二答案1、twice a week2、three to four tunes a year課堂訓練第一題答案1、 How often does 2、 Does；go 3、 What kind of4、 What is 5、 What does；do課堂訓練第二題答案678910shoppingonceh

2、ardlyexercisesdoes；do課后提升第題答案12345hardlyprogramInternetoncenever課后提升第題答案678910ADBBC課后提升第題答案11、 four times a week 12、 hardly listens to 13、 quite full 14、 on weekends 15、 What kind of課后提升第IV題答案16171819CEABUnit 2 Section A（Grammar Focus-3c）課前預習第一題答案1234help with熟夜at leastplay sports課前預習第二題答案5、 help wi

3、th 6、 maybe課堂探究探究一答案1、 help；clean 2、（to）do課堂探究探究二答案1、may be 2、Maybe課堂訓練第一題答案1、 Dlav SDorts 2、 uses the Internet 3、 at least 4、 go to the movies 5、 busy doing課堂訓練第二題答案678910alwaysoftenhardly everevery daynever課后提升第題答案1、 How often 2、 When do 3、 What does；do 4、 What is5、may be課后提升第題答案678910AGCFB課后提升第題答

4、案11、 He likes using the Internet best. 12、 Twice a week.13、 No，he doesnt. 14、 Once a week.Unit 2 Section B（1a-2e）課前預習第一題答案1、 junk food 2、 such as 3、 對有益 4、 the answers to the questions 5、 the best way to relax課前預習第二題答案6、 wants；to drink 7、 its good for 8、 fifteen percent of9、 It is good to relax課堂探究探

5、究一答案1、to find 2、to be課堂探究探究二答案1、play computer games 2、B課堂探究探究三答案1、to finish 2、C課堂訓練第一題答案1、喝咖啡2、吃垃圾食品3、good for；health4、go camping 5、spend time with him 6、four to six times a week課堂訓練第二題答案7891011CCABB課后提升第題答案12345togetherJunkonlinediedhealth課后提升第題答案678910DCADC課后提升第題答案11、 is good for 12、 Fifty percent

6、 of 13、 spend time with14、 never drinks 15、 Although；often gives； to課后提升第題答案16、 healthy 17、 cleaning 18、 exercising 19、 surprised20、 to learnUnit 2 Section B(3a-4) Self Check課前預習第一題答案1、看牙醫 2、more than 3、less than4、goodlbad habits課前預習第二題答案5、 a 16-year-old high school student 6、 asked；about課堂探究探究一答案1、

7、 to help 2、 ask；about課堂探究探究二答案1、 a five-minute walk 2、 eight-hour sleep課堂訓練第一題答案12345forhealthywash/to washbuyingcleaning課堂訓練第二題答案678910breakfastwatchfirstBeforeUsually1112131415keepsupperrunhomeideas課后提升第題答案12345ACBAA課后提升第題答案6、 good habits 7、 ask the police for help 8、 How many hours 9、 more than t

8、wo hours 10、 hardly ever課后提升第題答案1112131415CBACD單元過關訓練（Unit2）單元過關訓練（Unit2）第一題答案12345CBBAD678910CADBC1112131415BBBBC單元過關訓練（Unit2）第二題答案1617181920BACBD2122232425BAAAC單元過關訓練（Unit2）第三題答案2627282930TFFTF31、There are six.32、 Group 1.33、 Yes，l tbink so.34、 No，it isnt.35、 Eat foods from all groups.Eat a well-b

9、alanced diet.單元過關訓練（Unit2）第四題答案3637383940everexercisewriterdentistprogram單元過關訓練（Unit2）第五題答案4142434445wentdifferencedoesnt have（to）learnto listen4647484950to drinktwiceto writewatchesshopping單元過關訓練（Unit2）第六題答案5152535455FEDCB單元過關訓練（Unit2）第七題答案One possible version：There are fifty students in Mr，Smiths class， Here are the results of the students activity survey sixty percent students watch TV every day，Iwenty percent students watch TV twice a week， Some students four times a week， Five of them have sports every day，Ten of them have sports twice a week， Thirty-five students ha