Eg: Vegetables are good for you. 蔬菜对你有好处。

　拓展：be good at 擅长... be good at doing sth. 擅长做...

　 1.I am good at （play）basketball.

　3. Last month we asked our students about their free time activities. 上个月我们向学生询问了他们 业余活动的情况。（教材第12页）

　 ask sb. about sth. "询问某人关于某事"

　Eg:I asked my teacher about today's homework. ____________________________________。

　4. Here are the results. 这是（调查）结果。（教材第13页）

　here 位于句首，句子要倒装。Eg：Here is your jacket. 这是你的夹克。

　5. ...twenty percent students don't exercise at all. ...百分之20的学生根本不锻炼。（教材第13页）

　1. 百分数由percent来表示，构成：基数词+percent 。

　 Eg：Seventy percent of the boys like playing computer games. 男生中70%喜欢完电脑游戏。

　2. not... at all 意为"一点儿也不，根本不"。

　 Eg：I don't know about it at all. 对那件事我一点也不知道。

　 拓展：not at all = you are welcome 意为"不用谢，不客气"。

　 Eg：--Thank you for your help. --Not at all.

　6. Although many students like to watch sports，game shows are the most popular. 尽管许多学生喜欢看运动类节目，但游戏类节目是最受欢迎的。（教材第13页）

　although 连词。意为"虽然，尽管"。but 意为"但是"。英语中，although与but不能同时使用。

　Eg：Although it rained，the boys still played outside.

　 = It rained，but the boys still played outside. 尽管天下雨了，但男孩们仍在外面玩耍。

　1. My cousin knows a lot about geography， he is only four years old.

　 A. because B. so C. although

　7. It is good to relax by using the Internet or watching game shows. 通过上网或看游戏类节目是很好的放松方式。（教材第13页）

句中it 为形式主语，真正的主语是后面的动词不定式短语。此句型结构为：It's+adj+（for sb.）+to do sth. 意为 "（对某人来说）做某事是......的"。

Eg：It's very important to listen carefully in class. 上课认真听讲很重要。

　　It's easy for us to swim. 对我们来说游泳很容易。

　　It's very hard for him to study English. _____________________________________

　　1.---I often have hamburgers for unch. ---You'd better not. It's bad for you too much junk food.

　　A.eat B.to eat C.eating D. ate

　　8. Exercise such as playing sports is fun，and you can spend time with your friends and family as you play together. 比如进行体育活动这方面的锻炼就是有趣的，当你们一起运动的时候你可以和朋友、家人一起度过时光。（教材第13页）

such as 意为"比如，例如"。

　　Eg: I have a lot of hobbies, such as reading and singing. 我有许多爱好，比如读书和唱歌。

　　spend 意为"度过" 或"花费（时间、金钱）"。

　　Eg: Come and spend the weekend with us. 来和我们一起度过周末吧。

重点：1. spend time\money on sth. 在......上花费时间或金钱