题目内容

The traffic on the main streets has a longer green signal than _______ on the small ones.

A. one B. this C. that D. it

C

【解析】

试题分析:考查指示代词。句意:主道上交通信号灯的绿灯时间比小路上的(绿灯时间)要长一些。one指代可数名词,表示泛指;this这个,表示近指;that表示远指,也可指比较对象,还可指代不可数名词;it特指上文提到的人或物,还可指性别不明的人。这里指代的是“the traffic”,traffic是不可数名词,故选C。

考点:考查指示代词

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A rainforest is an area covered by tall trees with the total high rainfall spreading quite equally through the year and the temperature rarely dipping below 16℃.Rainforests have a great effect on the world environment because they can take in heat from the sun and adjust the climate.Without the forest cover,these areas would reflect more heat into the atmosphere,warming the rest of the world.Losing the rainforests may also influence wind and rainfall patterns,potentially causing certain natural disasters all over the world.

In the past hundred years,humans have begun destroying rainforests in search of three major resources(资源):land for crops,wood for paper and other products,land for raising farm animals.This action affects the environment as a whole.For example,a lot of carbon dioxide(二氧化碳)in the air comes from burning the rainforests.People obviously have a need for the resources we gain from cutting trees but we will suffer much more than we will benefit.

There are two main reasons for this.Firstly,when people cut down trees,generally they can only use the land for a year or two.Secondly,cutting large sections of rainforests may provide a good supply of wood right now,but in the long run it actually reduces the world's wood supply.

Rainforests are often called the world's drug store.More than 25% of the medicines we use today come from plants in rainforests.However,fewer than 1%of rainforest plants have been examined for their medical value.It is extremely likely that our best chance to cure diseases lies somewhere in the world's shrinking rainforests.

1.Rainforests can help to adjust the climate because they ______.

A.reflect more heat into the atmosphere

B.reduce the effect of heat from the sun on the earth

C.bring about high rainfall throughout the world

D.rarely cause the temperature to drop lower than 16℃

2.What does the word“this”underlined in the third paragraph refer to?

A.Humans have begun destroying rainforests.

B.People have a strong desire for resources.

C.We will lose much more than we can gain.

D.Much carbon dioxide comes from burning rainforests.

3.It can be inferred from the text that ______.

A.we can get enough resources without rainforests

B.we will grow fewer kinds of crops in the gained land

C.the level of annual rainfall affects wind patterns

D.there is great medicine potential in rainforests

4.What might be the best title for the text?

A.Rainforests and the Environment

B.How to Save Rainforests

C.How to Protect Nature

D.Rainforests and Medical Development

Even with the multimedia excitement of the web. Electronic Mail, e?mail, is the most frequently used application of the Internet. Many people who have a chance to use the Internet at school, home, and work. They use the Internet for no other purposes than to send or receive e?mails.

It's all very easy. You prepare the message, log onto(登录) the Internet, and send it. The message first goes to your Internet Service Provider's mail server, which in turn sends it to the recipient's(邮件接收者) mail server. On the way your message may go through several servers, each reading the name in order to send it to the right server. The message then remains in the recipient's mail e?mail server until he requests it by “checking his mail”.

The benefits of e?mails are obvious: mostly it's quick. Also, many people feel that the rules for regular mails don't apply to e?mail, making it less formal, which in turn make e?mail easier to write and send.

It's not just friends and co?workers that are receiving e?mails. Wherever you look, the Web is providing e?mail addresses. This has made communication between strangers easier than ever. You can read an interesting article online and immediately send the author an e?mail. Anyone who posts his e?mail address on a Web page is saying he wants to receive e?mail.

There are places you can go if you don't know someone's e?mail address. Check out Bigfoot, the Internet Address Finder, or Netscape's E?mail Directories for more information.

E?mail is one of the services offered by your Internet Service Provider—a service that you're applying for every month.

1.The passage is about .

A. the multimedia excitement B. different websites

C. e?mail D. mail server

2.We can infer from the passage that .

A. e?mail is the only application of the internet

B. if you want to send and receive e?mails, all you have to do is to log onto the Internet.

C. many people use the Internet only for the purpose of sending and receiving e?mail

D. you can send e?mails to friends and co?workers but you can't make communication between strangers

3.If you don't know someone's e?mail address, .

A. look up in a dictionary

B. check on Netscape's E?mail Directories

C. ask your computer teacher

D. refer to your textbook

4.What can you infer from the fourth paragraph?

A. Only friends and co?workers send e?mails.

B. It's convenient to communicate between strangers online.

C. It's difficult to contact the author on the Internet.

D. You can't log onto the Internet except at home.

Money Matters

Parents should help their children understand money. 1.______ So you may start talking about money when your child shows an interest in buying things, candy or toys, for example.

1. The basic function of money

Being explaining the basic function of money by showing how people trade money for goods or services. It is important to show your child how money is traded for the thing he wants to have. If he wants to have a toy, give him the money and let him hand the money to the cashier(收银员). 2.______ When your child grows a bit older and understands the basic function of money, you can start explaining more complex ways of using money.

2. Money lessons

Approach money lessons with openness and honesty. 3.______ If you must say no to your child’ request to spend money, explain, “ You have enough toy trucks for now.” Or, if the request is for many different things, say, “You have to make a choice between this toy and that toy.”

3. 4._____

Begin at the grocery store. Pick out similar brands of a product--a name brand butter and a generic (无商标产品), for example. You can show your child how to make choices between different brands of a product so that you can save money. 5._____ If he chooses the cheaper brand, allow him to make another purchase with the money saved. Later, you may explain how the more expensive choice leaves money for other purchases.

A. Wise decision

B. The value of money

C. Allow the child to choose between them.

D. Tell your child why he can or cannot have certain things.

E. Ask yourself what things that cost money are most important to you

F. Talk about how the money bought the thing after you leave toy store

G. The best time to teach a child anything about money is when he shows an interest

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