45. Which work needs a lot of time to do?

　　A. To get rid of certain types of plants.

　　B. To carry the building materials.

　　C. To replace the stones.

　　D. To clean the stones.

　　B

　　The Internet is not perfect. There are many problems with it.

　　The Internet is not organized. There is no one in charge of the Internet. It is sometimes difficult to find what you are looking for. It is also easy to get the wrong information on the “Net”.

　　Some businessmen cheat people on the Internet. Internet thieves can steal credit card numbers. Some advertisers send spam to e-mail boxes. E-mail boxes are often filled with these unwanted advertisements.

　　Illegal(非法的) businesses can operate on the Internet. These businesses sell X-rated materials, cigarettes and alcohol to teenagers.

　　The Internet has websites with information about making bombs, breaking the law and terrorism.

　　Criminals can fool people, especially children, in chat rooms. They can spread poisonous information and attack new members.

　　The Internet is the greatest advance in communication since human emerged. But it can also like a dark alley in a dangerous part of town. Parents need to set parental controls on their children when they use the Internet. This will keep some of the bad material away from their children.

【广东省揭阳一中2017-2017学年高一上学期期中考试英语试题（Word版含答案）】相关文章：

★ 安徽省池州一中2017-2017学年高一上学期期中考试英语试题（无答案）

★ 江苏省泰州市第二中学2017-2017学年高一上学期期中考试英语试题 Word版无答案

★ 福建省四地六校2017-2017学年高一上学期第二次月考英语试题 Word版含答案

★ 江苏省邗江中学（集团）2017-2017学年高一上学期期中考试英语试题（新疆班）

★ 广东省东莞市第七高级中学2017-2017学年高一上学期期中考试英语试题

★ 浙江省杭州二中2017-2017学年高一上学期期中英语试题 Word版含答案

★ 云南省蒙自县文澜高级中学2017-2017学年高一上学期期末考试英语试题 Word版无答案

★ 安徽省怀远县包集中学2017-2017学年高一上学期期中考试 英语试题 Word版含答案

★ 四川省成都市六校协作体2017-2017学年高一上学期期中考试英语试题 Word版含答案

★ 浙江省诸暨中学2017-2017学年高一上学期期中英语试卷 Word版含答案