53.first【解析】此空作状语，从first或always中选择，根据句意可确定应填first。
54.wants【解析】此空要填动词，从have，want，drop中选择。再根据下文The hands went back into the air.可知此句意为“谁想要它”，故应填want。注意用who进行提问时，常将其看作第三人称单数形式，故填wants。
55.dropped【解析】此空要填动词，从have，drop中选择。再根据on the floor and stepped on it可知他把这张100美元的钞票扔在地上，故选drop。再由下文的stepped可知要填过去式形式dropped。注意要双写p，再加ed。
56.dirty【解析】此空作定语修饰bill，故填形容词dirty。另外，从stepped on it也可知这张100美元的钞票被弄脏了。
57.lesson【解析】由形容词valuable 可确定此空应填名词，根据句意确定填lesson，在此表示“一堂课”。
58.times【解析】many 修饰可数名词复数，剩下的只有time(次数)是名词，故填times。
59.has【解析】空格后的happened是过去分词，从剩下的词可确定填have。what作主语时是第三人称单数形式，故填has。
60.always【解析】此句意为“对于那些爱你的人来说，你总是有价值的。”故应填always。
One possible version
Advantages and Disadvantages of the Internet
Internet is now coming into our life.It brings us not only a lot of convenience，happiness but also troubles.Some students use Internet as a tool to study.They look up the meanings of the words，a translated form of a sentence，the background of an event or a story，the information of a company or a famous person，etc.They also read news or send emails through it.Internet help them learn more and study well.
On the other hand，some students play games，chat with friends，see the pictures or films even the unhealthy ones on the Internet the whole day.They are not interested in their subjects.It's very dangerous for them！
The Internet's advantages and disadvantages are shown clearly to us.I think we should stay away from the unhealthy websites and make good use of it.
训练四
1.C【解析】考查“数词+单数名词”作定语。注意两者之间要用连字符，并且名词只用单数。
2.D【解析】由You shouldn't throw them everywhere.可知选D。drive off“赶走”；take off“脱掉，起飞”；try on“试穿”；put away“收起来”。
3.D【解析】由I saw him in the classroom just now.可知此处表示“不可能是他”。表示否定的猜测时要用can bt，即选D。
4.C【解析】由by Nancy Jackson可确定要用被动语态。故应选C。
5.D【解析】because of 意为“由于，因为”。
6.C【解析】由上句可知是再度一次假，故选C。another意为“再一，又一”。
7.B【解析】as quickly as we can/as quickly as possible意为“尽可能快地”。
8.D【解析】由Wang Xia told me that she saw him in the supermarket yesterday.可知此处表示不赞同对方的看法。
9.A【解析】用现在完成时表示他们已发明的东西，故选A。
10.C【解析】根据前句句意可知选C。
11.D【解析】从How I wish to go there！可确定选D，表示“不，没去过”。
12.A【解析】由于news是不可数名词，故用it替代 。
13.D【解析】no problem 在此表示“没关系”，用来回答别人的道歉。
14.B【解析】working hard at his or her lessons为插入语，故该空应填谓语动词形式hopes。
15.D【解析】由选项可知yet常与完成时态连用，故排除A、C两项；且根据上下文语境可知选D。
16.too tired to walk 17.if you don bt support us/without your support
18.Why not/Why don bt we 19.have a bad effect/bad effects on
20.was given/donated 21.the most popular
22.What about
23.It's good for
24.Would you like
25.It took my brother a week to teach me/My brother spent a week teaching me
26.tells me neither to show myself off，nor to look down upon others
27.same【解析】由Of course not！Everyone is different.可知是问“他们个性相同吗”，故填same。
28.with【解析】从Some people are very outgoing (外向的) and friendly.可知他们总是喜欢和其他人在一起，故填with。
29.shy【解析】从And some people are quiet可知“或许他们有些害羞”，故填shy。
30.few【解析】由they like to be alone可知他们朋友很少，故填few。
31.However【解析】根据前后句的意思可知此处表示转折关系，根据首字母H提示确定填However。
32.never【解析】由These people are very relaxed.可知他们从不介意接下来会发生什么事，故填never。
33.best【解析】do one's best意为“尽最大努力”。
34.doing【解析】由But some people are lazy.可知他们不关心是否把事情做对了，即可确定填动词do。or连接两个并列的成分，再根据后半句中的getting 确定填doing。
35.ones【解析】此处用ones来代替people。
36.forget【解析】由Everyone is different.That means you are special！可知这里表示“不要忘记”，故应填forget。
37.woke up
38.give up
39.on earth
40.millions of
41.fill in
42.A 43.D 44.B 45.C 46.do well
【写作指导】
本篇书面表达要求对建好、办好学校提出建议，因此只要根据提示内容从学习环境(如：教室、操场……)以及特色课程(如：网球、钢琴……)等有利于学习的方面提出恰当的建议即可。
One possible version
Dear Mr.White，
I'm glad to hear you'll build an international school，and I'd like to give you some advice.I think the new school should be nice and pleasant.Students need bright classrooms to study in，modern libraries to open up their eyes，large playgrounds to play different kinds of sports on.The school may provide students with some special courses，such as art，tennis or piano lessons.These courses can make students relaxed and encourage them to develop freely.It would be better for students to have some chances to practice in your company so that they can get some useful experience.
I hope I can enter the school.
Sincerely yours，
Zhou Shan