Unit 2 How often do you exercise?1. 短语归纳1 help with housework 帮助做家务活2 go shopping 购物3 on weekends 在周末 4 how often 多久一次5 hardly ever几乎不6 once a week 每周一次7 twice a month每月二次8 go to the movies去看电影9 every day 每天10 use the Internet上网/用网11 be free有空12 have dance and piano lessons 上舞蹈钢琴课 13 swing dance摇摆舞 14 play tennis 打网球 15 stay up late 熬夜16 at least至少 17 go to bed early 早睡18 play sports 锻炼身体19 be good for 对…有好处20 go camping去野营21 in one’s free time 在某人的空闲时间22 not….at all 根本不 23 the most popular 最流行 24 such as例如 25 go to the dentist去看牙医26 more than 超过/多于27 Old habits die hard.旧习惯难改28 hard=difficult 困难的 ， 29 less than 少于/不到2. 典句必背1 —What do you usually do on weekends? 你周末通常做什么？ —I always exercise. 总是锻炼身体。
2 —What do they do on weekends? 他们周末干什么？ —They often help with housework. 他们经常帮助干家务活3 —What does she do on weekends? 她周末干什么？ —She sometimes goes shopping. 她有时购物4 —How often do you go to the movies? 你多久看电影一次？ 5 —I go to the movies maybe once a month. 可能一个月看一次6 —How often does he watch TV? 他多久看电视一次？—He hardly ever watches TV. 他几乎不看电视7 —Do you go shopping? 你购物吗？ —No, I never go shopping. 不，我从来就不购物3. 用法集萃(1) How often do you watch TV? 你多久看一次v how often意为“多长时间一次 ，每隔多久”，是对句中的often, usually，every day, sometimes, never, once a week等表示频率的词或短语提问，多用于一般现在时。
例：—How often do you go to see a film? 你多久看一次电影? —Once a week. 一周一次v 辨析：how often, how soon, how far与how longHow often一How often do you visit your mother?你多长时间看你妈妈一次?—Once a week. 一周一次多长时间一次或每隔多久”，是就做某事的频率提问How soon—How soon will he be back? 他要多久回来?—In an hour. 一小时以后多久之后，侧重某人某事多久能完成How far—How far is it from here to the zoo? 从这里到动物园有多远?—It’s 6 kilometres. 6千米多远”，就路程提问How timesHow long did he stay here? 他在这儿待了多久?一About two weeks. 大约两个星期时间多久或物体多长”，表示时间， 侧重指“一段时间”v 辨析sometimes, some times, sometime, some timesometimes表示“有时”，提问用how often, 指频率He sometimes walks to school. 他有时走路去学校some times表示“几次，几倍”，提问用how many timesI have been to Japan some times.我已经去过北京几次了sometime表示“某个时候”，提问用whenI will go to Beijing some time next week.我将在下周某个时候去北京some time表示“一段时间”，提问用how longI stayed in Beijing for some time.我在北京待了一段时间(2) Oh, I have to play tennis with my friends. 哦，我必须和我的朋友们一起打网球。
v have to意为“必须，不得不”，强调受客观条件的影响而“不得不去做某事”它有人称、数和时态的变化，在变为疑问句或否定句时要借助助动词do, does或did例：Does she have to go home now? 现在她必须回家吗?We had t walk to shoo yesterday. 昨天我们不得不步行去了学校have to强调客观需要，must表示主观愿望和看法3) They often help with housework. 他们经常帮忙做家务v help with意为“在某方面帮助”，是固定短语，也可写作help sb. with sth. 表示“在某方面帮助某人”v 拓展：help相关短语help sb. (to) do sth.帮助某人做某事help oneself to sth.自用(食物等)help sb. out帮助某人克服困难help sb. into/out of 搀扶某人进人/走出can’t help doing sth.禁不住做某事with the help of 在....的帮助下(4) But my mother wants me to drink it. 但是我妈妈想要我喝它(牛奶)。
v want sb. to do sth. 属于“动词+宾语+宾补”的固定结构例：She wanted me to read it again. 她想要我再读一遍5) She says it’s good for my health. 她说那对我的健康有好处v 句中的it’s good for my health作says的宾语；it 指上文所说的“喝牛奶”v 拓展：与good相关短语短语及含义举例be good for 对...有好处Eating fruit is good for our health. 吃水果对我们的健康有好处be good to 对...友好He is good to me. 他对我很友好be good with 善于应付...的；对...有办法He is good with difficulty. 他善于应付困难be good at 对...擅长You’re good at telling stories. 你很擅长讲故事(6) Although many students like to watch sports, game shows are the most popular.虽然许多学生喜欢看体育节目,但游戏类节目是最受欢迎的。
v Although作连词，意为“虽然，尽管”，用于引导让步状语从句，语气比较强，可放于句首或句中，有时可与though 互换例：Although he was tired, he went on working. 尽管他很累，他仍然继续工作He often helps me with my English although/though he is quite busy.尽管他相当忙，但他常常帮我学英语v although/ though引导的让步状语从句不能与but连用，但可以与yet, still连用7) It is good to relax by using the Internet or watching game shows, but we think the best way to relax is through exercise.通过上网或观看游戏类节目放松是有好处的，但我们认为，放松的最好方法是通过锻炼v 句型“It is/was +adj (for sb.)+to do sth.”中，it是形式主语，真正的主语是动词不定式短语to do sth.该句型的意思是：“（对某人来说）做某事.....的”It’s+adj. +for sb.+to do sth.该句式常用于表示事物的特征、特点。
形容词常为表示客观情况的形容词，如：easy, hard, difficult, interesting, impossible等It’s very hard for him to learn two languages.对他来说学两种语言是很难的Its+adj. +of sb.+to do sth.该句式常用于表示人物的性格、品德形容词常为表示主观感情或态度的形容词，如：good, kind, nice, clever, foolish等It’s very nice of you to help me.你来帮助我，你真是太好了4. 语法聚焦v 频度副词：表示动作频率的副词 辨析：always, usually, often, sometimes, seldom, never频度频度副词含义举例频率由高到低always一直；总是The sun always rises in the east and sets in the west.太阳总是东升西落usually通常I usually ask my father for help. 我通常会向我爸爸求助often经常It often rains here in April. 这儿四月份常下雨sometimes有时；不时I sometimes wait for him at the school gate.我有时在学校大门口等他seldom/hardly/hardly/ever很少；几乎不I don’t like swimming, so I seldom go swimming.我不喜欢游泳，所以我很少去游泳never从不；从来没有I never tell lies. 我从不说谎5 / 5。