A 15﹣year﹣old student from Sichuan named Wei Fang was preparing a talk on Western festivals． She searched online for information and made a PowerPoint slide（幻灯片）． Zhu Hui her classmate． was doing his chemistry homework． But he couldn't work out the last problem even though he had tried his best．So he took out his smart phone opened a special app and searched for the problem． Solutions appeared on his screen after several seconds．

Like Wei and Zhu，nowadays ， many students do their homework with the help of the internet． They search for information online， or discuss with their classmates through QQ and WeChat．

"It's convenient． You don't have to wait for your teacher to explain it to you face to face． " According to Zhu． You can also learn by seeing how others work the problems out． What's more． it improves students' problem solving abilities． This is especially true for homework that requires some research work．"I am now quite skilled at finding information online， " Zhu added．

However． this trend （趋势） also causes problems． Some lazy students just copy the answers from the internet without thinking on their own． Some even let their classmates do their homework for them． And their teachers may not know this．

But knowing how to use the internet is important． The key is to have good self﹣control． When you meet a difficult problem，think about it by yourself first． Be sure to understand the reasons behind the answers after you have turned to the internet，or you won't make any progress． If you are not sure about your self﹣control，ask your parents for help．

（1）Both Wei Fang and Zhu Hui used the internet to 　　．

A．	play games
B．	search for information
C．	take exams
D．	chat with their classmates．

（2）Which of the following problems is NOT mentioned in the fourth paragraph？ 　　

A．	Some students only copy the answers from the internet．
B．	Some students let their classmates do homework for them．
C．	Nobody is able to finish their homework without the internet now．
D．	Some students have stopped thinking on their own．

（3）According to the passage， 　　is the key to using the internet to study．

A．	self﹣respect
B．	self﹣control
C．	self﹣confidence
D．	self﹣thinking

（4）By writing this passage． the writer wants to tell us that 　　．

A．	the internet can be a good helper if we use it properly
B．	the internet has made all students lazy
C．	it's not necessary to learn how to use the internet
D．	It's important to learn how to use the internet