Unit 7Teenagers should be allowed tochoose their own clothes.1．I don't think sixteen-year-olds should be allowed to get their ears pierced.我认为不应该允许16岁的孩子穿耳洞。

(1)当主句的主语是第一人称I或we，谓语动词是think, believe, suppose, guess等词时，其后的从句不能是含有not的否定句；若要否定，须将not提到主句。

在翻译时，按汉语习惯翻译。

例如：“我想他不会给你打电话的”应译为I don't think he will give you a call.，而不是I think he won't give you a call.。

(2)本句中的sixteen-year-olds相当于sixteen-year-old teenagers，意为“16岁的孩子”。

数词和一个相应的名词单数用“-”连接起来，可以构成一个合成形容词。

也可以是数词、单数名词和形容词用“-”连接起来作形容词。

如：a 300­meter­long river一条300米长的河流a two­month holiday两个月的假期a sixty-pound stone一块60磅重的石头(3)get their ears pierced属于“get/have＋名词/代词＋动词的过去分词”结构，意为“使……被做；请人做……”。

如：①I'll go out to get my hair cut.我要出去理发。

②Why haven't you got the work done yet?你为什么还不叫人把活干了呢？2．I regret talking back, not listening to Mom.我后悔顶嘴了，没有听妈妈的话。

regret可作动词，意为“感到遗憾；表示歉意；懊悔”。

常见用法如下：(1)regret＋n./pron.。

如：If you don't do it now, you'll only regret it.如果现在不做，你以后一定会后悔的。

(2)regret＋that/what从句。

如：①I deeply regret what I said.我非常后悔说了那些话。

②I regret that I am unable to accept your kind invitation. 很遗憾，我不能接受你的友好邀请。

(3)regret＋to do。

如：We regret to tell you that your friends have left for Beijing. 我们很遗憾地告诉你，你的朋友们已经离开去北京了。

(4)regret＋动词-ing。

如：He regretted doing such a bad thing.他后悔做了这么一件坏事。

regret还可以作名词，意为“后悔；懊悔；遗憾”。

如：I have no regrets about leaving the big city.我一点也不后悔离开大城市。

3．I know my parents care about me.我知道我父母关心我。

本句中的care about为及物动词短语，意为“关心；在乎；介意”，其后接名词或代词。

如：①The girl never cares about others.那个女孩从不关心别人。

②She didn't care about anything people might say. 人们说什么她都不在乎。

1．No way！不可能/不行！这是英语口语中一个直接拒绝对方的表达用语，强调不赞同别人的观点，或根本没有可能按照其要求去做事。

如：①—Will they give you a job?他们会给你工作吗？—No way. 不可能。

②There is no way for you to reach her.你没办法找到她。

2．When I was a tiny baby crying all night, my mom sang to me and stayed by my side.当我还是一个整夜哭闹的小宝宝时，妈妈会给我唱歌，陪伴在我身旁。

这里crying all night 为现在分词短语，跟在名词baby后面作定语，修饰baby。

如：Most of the people singing are the students.大多数唱着歌的人是学生。

3．①I agree.我同意。

②I disagree.我不同意。

(1)agree意为“赞成；同意”，用来表示同意某人的意见、观点等。

如：①—Shall we go to the zoo tomorrow?我们明天去动物园，好吗？—I agree. 我同意。

②I quite agree with you.我完全赞成你的意见。

agree with意为“同意”，后面接表示人的名词或代词，也可以接表示意见、看法的名词。

如：①We all agree with him.我们都同意他的意见。

②Do you agree with my ideas?你同意我的观点吗？(2)disagree是agree的反义词，相当于not agree。

4．Only then will I have a chance to achieve my dream.只有到那时我才有机会实现我的梦想。

only处于句首，并且后面紧跟状语时，全句需要倒装。

如：①Only then did he understand it.只有到那时，他才明白。

②Only in this way can we learn English well.只有这样我们才能把英语学好。

③Only when she came home did he learn the news. 当她到家时，他才得知了这消息。

被动语态(三)含有情态动词的被动语态(1)概念：含有情态动词的被动语态说明某人被动性动作所反映出的感情和态度。

在初中阶段可用于被动语态的情态动词有can, may, must, should等，分别表示“能够被……”，“可以被……”，“必须被……”，“应该被……”。

句子结构为：主语＋情态动词(can, may, must, should)＋be＋过去分词＋其他。

如：①The computer must be repaired now.电脑必须立刻被修。

②Many trees should be planted on the mountains. 应该在山上种许多树。

(2)转变方法：将含有情态动词的主动句式变成被动句式，即：“情态动词＋动词原形”变成“情态动词＋be＋过去分词”，然后再加上“by＋主动句中的主语(人称代词用宾格)”。

by短语也可省略。

如：①We should allow the students to wear their own clothes at school.→The students should be allowed to wear their own clothes at school.②Can they finish the work in two weeks?→Can the work be finished in two weeks?③You must hand in your compositions after class.→Your compositions must be handed in after class.④He can write a great many letters with the computer.→A great many letters can be written with the computer by him.(3)句式变换：含情态动词的疑问句、否定句的变化均需要借助于情态动词完成。

1)一般疑问句：情态动词(Can, May, Must，Should)＋主语＋be＋过去分词＋其他，即直接将被动语态的陈述句中的情态动词提前。

如：Must this work be done at once?这项工作必须立即完成吗？2)特殊疑问句：特殊疑问词＋情态动词(can, may, must, should)＋主语＋be＋过去分词＋其他，即由特殊疑问词加上被动语态的一般疑问句构成。

如：Where can the book be found?这本书在什么地方能被找到呢？3)否定句：主语＋情态动词＋not＋be＋过去分词＋其他，即在情态动词后面加上not 或never即可，但must表示“必要”时否定式为needn't。

如：①This work needn't be done at once.这项工作没必要立即做。

②This problem can't be worked out very easily.这道试题不能被轻而易举地算出来。

一、用所给词的适当形式填空1．In summer, we often feel ________(sleep) in the afternoon.2．These days there are many rules for water ________(safe).3．Do you think sixteen-year-olds should be allowed to get their ears ________(pierce)?4．Sixteen­year­olds should not be ________(allow) to smoke.5．He gave his ideas but I ________(agree) with him.6．There are so many ________(choice). You should be careful to make a decision.7．The girl's got her ears pierced, but she doesn't wear ________(ear)．8．Children should learn to make their own ________(decide)．9．When Zhu Zhiwen was working in the ________(field), he often sang for himself.10．Bus drivers have to receive strict training before getting driver's ________(license)．11．Most of the people have bad teeth because of bad habits, like heavy ________(smoke)．12．Remember not to let good ________(chance) go by just because of shyness!13．I know one can get educated in many ways, but universities are among the best places to teach me how ________(educate) myself.14．Thanks for teaching, ________(support) and helping us!15．Shaking off the rain like a wet dog, I ________(enter) Mr. Rader's office.16．However, in most European ________(society), it is very common for teenagers to move out.17．My mother ________(hug) me and cried when she sent me off in the airport.18．Only then will I have a chance ________(achieve) my dream.19．We will have more ________(chance) to choose a good job if we study hard now.20．He sent the old man to the hospital. Although he missed the game, he never ________ (regret)．二、根据中文意思完成句子1．我认为应该允许我们穿自己的衣服。