unit 7 teenagers should be allowed to choose their own clothes.
section a
课文重难点讲解。
1. safely是由形容词safe加-ly构成的名词，意为“安全；保险”，反义词是danger.
2. should be allowed 是含有情态动词的被动语态结构。
含有情态动词的被动语态的结构为：情态动词+ be + 及物动词过去分词。
3. allow动词，意为“允许；准许”，常用于下列机构中。
1） allow sb. to so sth.允许某人做某事。
2） allow doing sth. 允许做某事。
3） be allowed to do sth. 被允许做某事。
4. get their ears pierced 意为“打耳洞”，此处get 用作使役动词，相当于make或h**e, 意为“使；让”，“get/ h**e + 宾语+ 过去分词”结构意为“使某事被做”或“让某人做某事”，其中狗去粉刺表示的动作往往是别人做的，与句中主语无关。
eg: when are you going to get your hair cut? 你打算什么时候去理发？
5. i don’t think sixteen-year-olds should be allowed to drive.
我认为不应该允许16岁的青少年开车。
1） 若宾语从句跟在think, believe, suppose, expect等表示“想；认为”的词之后，而且主句的主语又是第一人称时，在否定从句时，句子的否定体现在主句上，这种现象叫否定转移。（否定前移）
eg: i don’t think it’s a good idea. 我认为那不是一个好主意。
2） sixteen-year-olds 在此句中用作名词，意为“16岁的青少年”。
基数词- 量词（单数）- 形容词”构成的词通常作形容词，作前置定语，而且这一整体是一个词，后加s表示一类人或事物。
eg: fifty-year-olds should retire. 五十岁的人该退休了。
6. hug n.意为“拥抱；搂抱”。
give sb. a big hug 热情地拥抱某人。
eg: lucy gives her friend a big hug. 露西热情地拥抱了她的朋友。
拓展】hug还可以作为及物动词，意为“紧抱；拥抱”
eg: she hugged her baby. 她抱着她的孩子。
9. lift
(1) vt.举起；抬高。
eg: he was too weak even to lift his hand. 他虚弱得连手都抬不起来。
(2) n. 电梯；搭便车。
eg: he pressed the button to call the lift. 他按键招呼电梯。
10. awful adj. 可怕的；畏惧的；充满敬畏的。
11. 【辨析】regret to do sth.与regret doing sth.
(1) regret to do sth. 很遗憾地/抱歉地做……(事情还没有做)
eg: i regret to tell you that you can’t pass the examination.
我很遗憾地通知你你不能通过这次考试。
(2)regret doing sth.很遗憾/后悔做了……(为已经做过的事感到后悔)
eg: i regret disturbing you so long. 我很抱歉打扰了你那么久。
12. 重要短语。
keep … from… 远离……
talk back 回嘴；顶嘴。
think back to 回想；回忆。
1a~2d)
一． 根据句意及首字母提示补全下列单词。
1. let’s go for a ride. i h**e got my driver’s l
2. i want to wear earrings, but my parents won’t allow me to get my ears p
3. taking photos isn’t ain the museum.
4. it’s very important to teach children about road s
5. faren’t allowed to use in the museum. they may hurt the art.
二． 根据句意用所给词的适当形式填空。
6. tim doesn’t seemh**e) many friends.
7. he spent two hoursfinish) his work last night.
8. you must stopsmoke) now. it’s good for health.
9. sixteen-year-olds are not old enoughdrive) a car.
10. my watch doesn’t work. i’ll get itrepair).
三． 单项选择。
11. teenagersallowed to drive.
not be be not should be
12. -i don’t think sixteen-year-olds should be allowed to drive.
they aren’t serious enough.
agree disagree think so right
13. nowadays people care more about theof food. everyone wants to eat healthily.
14. i think __should not be allowed to drive.
year old
15. -dad, why must i stopcomputer games?
---for your health, my boy.
play playing
四．根据汉语意思完成下列句子。
16. 你担心你的安全吗？
are youyour
17. 我为看毕加索的漫画而激动。
i’mseeing the paintingspicasso.
18. 青少年应该停止吸烟。
should
19. 我认为16岁的青少年不应该扎耳洞。
i don’t thinkshould be __totheir ears
20. 如果我们不用闪光灯，我们会被允许拍照吗？
can we bephotos if we don’t use a
3a~3c)
一． 根据句意及首字母提示补全下列单词。
1. you did quite well in your homework, but you still made some tmistakes.
2. look! some farmers are working in the f
3. when i was nine watching scary movies, she said it’d give me adreams.
4. let’s make the lto the eighteenth floor.
5. we like pby su dongpo and li bai.
二． 根据句意选方框中的词填空（注意形式）
cry, regret, angry, lift, dangerous
6. the boys are inlet’s help them out.
7. ito tell you that you didn’t pass the exam.
8. the girl couldn’t find her mother, so she
9. when i fell and hurt myself, she g**e me a hug andme up.
10. my teacher saidwhy are you late again?”
三． 单项选择。
11. the xiamen-shenzhen high speed railway will runeight cities.
12. don’t talkyour grandmother is sleeping now.
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