Cause and effect is one way to explain things that happen around us. Many things happen because something caused or influenced them to happen. Sometimes it is hard to look at a cause and find out what caused or influenced them to happen. Sometimes it is hard to look at a cause and find out what causes the effect. It may help you to start with the effect and use your reasoning(推理的) skills. Think about all the things you know that could be reasons for the effect you can see.

For example, you may see someone putting on a heavy jacket. This is the effect. To look for a cause, think to yourself, “What would take someone put on a heavy jacket?” Maybe the person is going outside into very cold weather. Maybe the person works in the penguin pen(企鹅圈养地) at Sea World. Maybe the person is going to visit an ice skating rink where the air is kept very cold. All of these things could be a cause for putting on a heavy jacket.

Now, think about a second example. The effect is a boy named Abi has to go to the head teacher’s office. What are the possible causes? Maybe he bullied(欺负) another student. Maybe he is just being picked up early. Maybe he is being given a prize!

Here is another example for you to think about its cause and effect. Cait, 13, was trying to fall asleep when her 8-year-old brother, Doug, came into her room. He looked around a bit, but seemed really out of it. Then Doug went back into the hallway and stood there looking straight up at the hall light for quite a while. Little brothers can be very strange, but this was really much too strange. Cait’s father appeared and explained that Doug was sleepwalking. What’s the cause end effect, could you tell?

根据材料内容选择最佳答案，并将其标号填入题前括号内。

1.According to the second paragraph, which of the following is an effect?

A．Someone puts on a heavy jacket.

B．Someone works in the penguin pen.

C．Someone will go outside into cold weather.

D．Someone will go to visit an ice skating rink.

2.Abi has to go to the head teacher’s office. Which of the following isn’t the possible cause?

A．He bullied another student.               B．He is going shopping.

C．His is being picking up early.               D．He is being given a prize.

3.What was Doug doing when his sister Cait tried to fall asleep?

A．He was going outside.                    B．He was reading a story.

C．He was sleepwalking.                     D．He was looking for his dad.

4.Which of the following is cause and effect?

A．Tony got up and had a glass of water.

B．We came home and found him sleeping.

C．The ball was lost and a window was broken.

D．Tim was late again and his teacher got angry.

5.What is the best title for the next?

A．Truth and lies                          B．Work and sleep

C．Cause and effect                        D．Life and dreams

Beijing is facing severe (严重的)  traffic problems."Roads are wider now, but traffic jams (堵塞) often happen every day. " Yuan, a Beijing taxi drivers said.

Beijing government is trying to do something to make traffic jams less.  Before 2007, there were a few subway lines in Beijing. There was only line 1, line 2, line 13 and Batong Line. But now there is line 5, line 10, line 4, the airport fast -track and the Olympic branch line. And there will be 13 subway lines under construction in Beijing at the same time at the end of this year.

The opening of the new subway line is convenient to tourists. Before, arriving in Beijing, many visitors would usually take a taxi to interesting places of Beijing. Today, as soon as people get off the plane, they can take the Airport Express Line, going to different interesting places through the subway lines. The government also strives to open a new line each year from now until 2015. The subway of Beijing reached 300 kilometers in 2010 and it will reach 561 kilometers in 2015.

Miss Xiao, who lives in South Water Bridge and works at Hepingli, said that traveling by her car still took her at least one hour from home to work because of traffic jams. Now, because of the railway line 5, Miss Xiao can arrive at her office in less than haft an hour.

1.What are the trafc problems in Beijing now?

A．Drivers drive too fast.                    B．Roads are not wide enough.

C．Traffic jams often happen.                 D．Traffic lights are always broken.

2.What does the underlined phrase "under construction" mean in Chinese?

A．在学习           B．在建造中          C．在应用中         D．在控制中

3.Why is the opening of the new subway line convenient to tourists?

A．Because the new subway line is very interesting.

B．Because the new subway line's ticket is very cheap.

C．Because people in Beijing can cost less money than that before.

D．Because visitors can take the subway to many different interesting places.

4.Which of the following is TRUE according to the passage?

A．Visitors like to take a taxi in Beijing better.

B．The subway of Beijing will reach 300 kilometers in 2015.

C．There will be 15 subway lines in Beijing at the end of the year.

D．It takes Miss Xiao less time to get to her workplace by railway line 5.

5.What is the main idea of the passage?

A．People in Beijing invented high -speed trains.

B．Railway lines in Beijing only covers some areas.

C．Beijing welcomes visitors from different places.

D．Beijing government has done something to make traffic jams less.

Beijing is facing severe (严重的)  traffic problems."Roads are wider now, but traffic jams (堵塞) often happen every day. " Yuan, a Beijing taxi drivers said.
Beijing government is trying to do something to make traffic jams less.  Before 2007, there were a few subway lines in Beijing. There was only line 1, line 2, line 13 and Batong Line. But now there is line 5, line 10, line 4, the airport fast -track and the Olympic branch line. And there will be 13 subway lines under construction in Beijing at the same time at the end of this year.
The opening of the new subway line is convenient to tourists. Before, arriving in Beijing, many visitors would usually take a taxi to interesting places of Beijing. Today, as soon as people get off the plane, they can take the Airport Express Line, going to different interesting places through the subway lines. The government also strives to open a new line each year from now until 2015. The subway of Beijing reached 300 kilometers in 2010 and it will reach 561 kilometers in 2015.
Miss Xiao, who lives in South Water Bridge and works at Hepingli, said that traveling by her car still took her at least one hour from home to work because of traffic jams. Now, because of the railway line 5, Miss Xiao can arrive at her office in less than haft an hour.
【小题1】What are the trafc problems in Beijing now?