题目内容
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Here are some easy steps for you to stay safe and secure on the Internet.
1 Never give out your full name , address and phone number, unless it is a safe site or it is a well- known site.
Protect your money.Do not give out your card information unless it is a secure site.You can tell if the site is safe by looking at the lower part of your screen. 2 If it is locked, the site is secure.“Unlocked” means that you should not give a card number.
Don't believe “Get Rich Quick!” If it sounds too good to be true-it is! If you get an e-mail that says you can make thousands of dollars in a few days, it isn't true.Most likely it will cost you in the end. 3 .
A good virus scan(杀毒软件).Update your virus scan. 4 When you buy a virus scan, it may have been on the shelves for months, so you need to update it frequently.
5 Do not open e-mail attachments(附件)that are programs.Receiving these programs in e-mail is harmless, but opening and running them can be dangerous.
A.There is a small lock.
B.Stay away from these offers!
C.New viruses come out daily.
D.There are always some unsafe sites.
E.Keep your main e-mail address private.
F.Don't give out personal information.
G.Protect yourself from dangerous e-mail viruses.
第二节(共5小题;每小题2分,满分10分)
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
In 1990 a report was published about what the earth might be like 20 years from then on. 71 According to the report,the picture of the earth in the year 2010 is not a pleasant one. 72 The population could be as large as 6300 million,almost 2150 million more than in 1985.More people would move into cities ,especially cities in developing countries.Cities like Cairo and Jakarta probably would each have 15 million by then.
73 Farmers will grow 90% more food than they did in 1985,but most of the increase would be in countries that already produce enough food for their people. 74 Poor farming ways are destroying large areas of crop land,changing farms into deserts.More farmland is lost as cities become larger and more houses are built.Air pollution will get worse as industrial countries burn more coal and oil.Many of the world's forests could disappear as more and more trees are cut down.Energy will continue to be a serious problem. 75 They only workde out the situation that exists today.By changing the situation,by settling the problems,the picture can be changed.There is still time for the nations of the world to work out a plan of action.But they warned that waiting too long to make de cisions would greatly reduce the chances of success.
A.Food production will increase,but not enough to feed all the people. |
B.The report was a result of a three - year study. |
C.Later on,more reports came out one by one. |
D.The world will be more crowded because the population will continue to grow. |
E.Experts believe enough food will be produced in developing countries very soon.
F.The experts say their picture of the earth for the year 2010 may be wrong.
G.Little increase is expected in South Asia,Africa and the Middle East.