“掘进工作面贯通前，综掘面50m，炮掘面20m，不及时向施工单位下达贯通通知书。施工

The Internet has become part of teenagers’ life.

A news report on 3,375 students aged from 10 to 18 in seven Chinese cities found that 38 per cent of them believe they use the Internet often.

While most of them get useful information and use the Internet to help in their studies, some are not using it in a good way. Many are playing online games too much. A few even visit Web sites they should not look at. A middle school teacher from Beijing warns that bad things can happen if young people spend too much time on the Internet. She had a student who used to be good at school. But then he started visiting sex Web sites. He went mad, cheated a girl and was taken away by the police.

In order to help young people use the Internet in a good way, a textbook on good Internet behavior has started to be used in some Shanghai middle schools this term. The book uses real examples to teach students all about good ways of using the Internet. The book gives useful advice such as it's good to read news or find helpful information to study.

Some students also make online friends. But if you are meeting a friend offline, make sure your parents know. Teachers and parents all think the book is a very good idea. This teacher said the book will be a guide for teens using the Internet. She believes it will keep students away from bad sites. “Many students are using the Internet without guidance from their parents,” she said. “The book will teach students how to be a good person in the online world.”

小题1:The third paragraph mainly tells us that ________.

A．some students are not using the Internet correctly

B．all students in Beijing use the Internet to help their school work

C．a teacher in Beijing is worried about her students

D．some students visit sex Web sites小题2:The textbook mainly tells us ________.

A．why we should use the Internet

B．not to visit sex Web sites

C．how to use the Internet correctly

D．how to get help from others小题3:The writer advises the readers to ________.

A．let their parents know before visiting their online friends

B．not to make friends online

C．read the textbook carefully

D．only read news on the Internet小题4:From this passage we know that ________.

A．more and more students have given up visiting bad Web sites

B．schools and teachers begin to pay attention to students’ use of the Internet

C．no more homework will be given in Shanghai

D．less and less information can be found on line

读下图，完成下列要求。

（1）从图中所处纬度位置来判断，台湾岛南部属于_____带，中、北部属于______带。

（2）台湾岛的地形东部为_____，西部为______。其_____面积约占总面积的2/3。

（3）台湾岛的河流多向_______流，水流_______，______丰富。_______是岛内最大的湖泊。

（4）图中A是_______市，B是______（山峰），C、D两地的地形均为______。

第2代电子计算机所采用的电子元件是( )。

A．继电器

B．晶体管

C．电子管

D．集成电路

( )是我国对证券投资基金的一种本土化创新。

A．收入型基金

B．上市开放式基金

C．公募基金

D．私募基金

胆汁质人的行为：直率，热情，精力充沛，情绪易冲动，心境变化激烈，外倾。