22.sleep vi.& n. 睡觉 sleepy adj.欲睡的，困倦的 asleep adj.睡着的
e.g Many teenagers have no enough sleep . 许多青少年没有足够的睡眠。
I feel sleepy in class. 课堂上我想睡觉。 23.satisfied adj. 满意的
e.g I am satisfied with the result. 我对这结果满意。 24.strength n. 力量 strength 的形容词strong（强壮的）. e.g He is strong enough to move the big stone away. 他足够强壮，把那块大石头移走了。
25.succeed vi. 成功 success n. 成功 successful adj.成功的 successfully(adv.)成功地
e.g The boy succeeded in making model ships. The boy was successful in making model ships. The boy had success in making model ships. 这个男孩成功地制作了模型轮船。
Failure is the mother of success. 失败是成功之母。 They went through the rainforest successfully. 他们成功地穿过了热带雨林。 26.unhealthy adj.不健康
e.g Eating too much can make you unhealthy. 吃的太多会使你不健康。 27.worry vi.担心 worried adj.烦恼的
worry about sb 担心某人 worry a lot 担心很多 e.g Don‘t worry about me 不要为我担心 28.warm adj. 温暖的
e.g The weather is becoming warmer and warmer. 天气变得越来越暖和。
9A Unit Three Teenage problems 1.accept vt. 接受 辨析：receive 收到 e.g Do you accept what he told you? 你能接受他所告诉你的事吗？
2.achieve vt. 获得 achieve a balance between…and… 在…和…之间获得平衡 achievement n. 成就，成绩
e.g I don‘t know how to achieve a balance between my schoolwork and my hobbies.Can you give me some advice?
我不知道怎样在学习和爱好两者之间取得平衡。你能给我一些建议吗？ 3.allow vt. 允许 allow sb. to do sth. 允许某人做某事 e.g My parents don‘t allow me to play outside after 6 p.m. 我父母不允许我下午6点之后出去玩. 4.communication n.交流，交际
e.g Many teenagers usually have no communication with their family members.许多青少年通常不和他们父母交流。
5.complete vt. 完成
e.g I‘m a Grade 9 student now. I often stay up late to complete my homework.我现在是九年级学生了，我经常熬夜去完成家庭作业。
6.courage n.勇气 encourage v. 鼓励
e.g I failed in the English test. I have no courage to tell my parents about it. 英语考试失败了，我没有勇气告诉我父母亲。 encourage sb to do sth. 鼓励某人做某事
e.g We should encourage farmers to leave the giant panda reserves. 我们应该鼓励农民离开大熊猫保护区。 7.cause vt.引起，使发生 n.原因
e.g What causes the problem?什么导致这个问题？ 8.disturb vt. 打扰，扰乱
e.g My cousin always makes a lot of noise and disturbs me when I‘m studying.当我在学习的时候，我的表弟总是发出噪音打扰我。
9.deal vi. 处理，应付 deal with/ do with e.g I don‘t know how to deal with the matter. I don‘t know what to do with the matter. 我不知道如何处理这件事。 10.doubt vt./n. 怀疑
e.g I often doubt whether it is worth working so hard. 我经常怀疑如此努力工作是否值得。
11.either adv. （用于否定句中）也，二者之一 either…or…或者…或者…
neither…nor…既不…也不… 谓语动词就近一致原则 e.g Tom doesn‘t like eating fish, I don‘t like ，either. Tom不喜欢吃鱼，我也不喜欢吃鱼。 I need a man to help me , either of you is OK. 我需要一个人来帮助我，你们中一个就行。 Neither he nor I am in the school football club. 他和我都不在校足球队。 12.first adv. Adj. 首先，第一
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