Unit 2  Section B-英语暑假精品课（人教版）

Unit2 How often do you exercise? Section B 1、熟记词汇及how often的相关句型。 2、能用英语描绘自己的饮食习惯。 重点单词 知识点梳理 1. She says it’s good for my health. (P. 12) (1)be good for意为“对……有益”，反义词是be bad for“对……有害”。 (2)health是不可数名词，意为“健康”，in good health表示“很健康”，形容词为healthy，副词是healthily。 2. Last month we asked our students about their free time activities. (P. 13) ask sb. about sth.意为“询问某人某事”。 3. Here are the results. (P. 13) here和there置于句首，谓语动词是be动词或者come, go等不及物动词时，主语为名词时，用倒装结构，即主谓调换位置，若主语是代词时，主谓不倒装。 Here comes the bus. There he goes. 4. We found that only fifteen percent of our students exercise every day. (P. 13) percent表示“百分之……”，常用“基数词+percent+of+名词”，“percent of+名词”作主语时，谓语动词的单复数取决于名词的单复数。 Seventy percent of the boys like playing computer games. Ninety of the work is finished. 5. And twenty percent do not exercise at all!(P. 13) not...at all意为“一点儿也不、根本不”；not at all表示“没关系、不用谢”。 6. We all know that many students often go online...(P. 13) 此处online用作副词，表示“在线、联网”，也可以用作形容词，意为“在线的、联网的”。 7. The answers to our questions about watching television were also interesting. (P. 13) 名词answer后常跟介词to，表示“……的答案”，类似的名词还有key，solution，ticket。 Your answer to the question is right. 8. Although many students like to watch sports, game shows are the most popular. (P. 13) although用作连词，表示“虽然、即使”，相当于though，用来引导让步状语从句。在英语中，although/though和but不能同时出现。 Although it rained heavily, the boys played outside.=It rained heavily, but the boys played outside. 9. It is good to relax by using the Internet or watching game shows, but we think the best way to relax is through exercise. (P. 13) (1) by可以用来表示方式，意为“通过”，后接名词或者动名词短语。 (2) way表示“方法”时，后常接动词不定式或者of doing作定语。 10. Exercise such as playing sports is fun, and you can spend time with your friends and family as you play together. (P. 13) (1) such as一般用于列举同一类人或物中的一个例子，但必须数量少于前面所提及的总数，只能放在所列举的名词前；for example一般用于列举一个例子，后面经常加上一个句子，位置很灵活，可位于句首、句中，和被列举的事例之间用逗号隔开。 (2) sb. spend+时间/金钱+on sth. “在某事上花费多长时间或者多少钱”； sb. spend+时间+(in) doing sth.“花费多长时间做某事” 【拓展】辨析spend, pay, take和cost spend 主语是人