And shop only at secure sites: Send your credit-card information only if the Web site offers advanced secure system.

If the security is in place, a letter will appear in the bottom right-hand corner of your screen. the Web site address may also start with https://----the extra "s" stands for secure. If in doubt, give your credit-card information over the telephone.

Keep your password safe: Most online sites require a user name and password before placing an order. Treat your passwords with care.

5.What do most people worry about the Internet according to this passage?

A.A lot of stolen credit-cards were sold on the Internet.

B.Fraud on the Internet.

C.Many Web sites are destroyed.

D.Many illegal Web sites are on the Internet.

6.What is the meaning of "fraud"?

A.cheating 　　　B.sale　　　C.payment 　　　D.safety

7.How can the thieves get the information of the credit-card?

A.The customers give them the information.

B.The thieves steal the information from Web sites.

C.The customers sell the information to them.

D.Both A and B.

8.How many pieces of advice does the passage give to you?

A.Four. 　　　　B.Three. 　　　　C.Five. 　　　　D.Six.

9.You are shopping on the site: http: //www.shopping.com,and you want to buy a TV set, what does this article suggest doing?

A.Order the TV set at once.

B.Do not buy the TV set on this site.

C.E-mail the site your credit-card information.

D.Tell the site your password and buy the TV set for you.

(C)

One day an ordinary dog appeared in the ticket office at Campiglia, a busy railroad station on Italy's main line. A ticket agent named Elvio greeted the strange dog in a friendly way, so the dog decided to stay. From that day on, the dog became Elvio's shadow and was named Lampo.

Lampo kept Elvio company(陪伴) inside the ticket office. When the weather was warm, he would enjoy himself in the sun on the train platform.

When it was time for Elvio to return home on the train at night, Lampo ran after the train for a long way and then sadly gave up and went back to the station.

One night as Elvio was riding home on the train, he noticed that Lampo was lying at his feet. Afraid that the conductor would see the dog on the train and shout at him, Elvio pushed Lampo under a seat. Luckily, the conductor did not notice the dog. Lampo came home with Elvio and met his family. then, after a short visit, Lampo boarded the last train and went back to the station. Lampo quickly learned all of the train schedules(时刻表).He would ride home from work with Elvio every night and then ride back to the station alone. Every morning, Lampo arrived at Elvio's house in time to walk his young daughter, Mivna, to school. The faithful dog would then takeanother train to Campiglia to spend time with his master, then travel againto accompany Mivna home from school at 11∶30.

Soon, Lampo began to take the trains all over Italy. Lampo became famous among the men who worked on the railroad, as his journeys became more frequent, complicated and mysterious. No one could explain why he traveled or how he always found the right train back to Campiglia. People decided that Lampo was a unique dog.

Some of the railroad officials were against Lampo's illegal travels. They were afraid he would bite a passenger or cause some other problems. Finally, the stationmaster threastened(威胁) to call the dogcatcher if Elvio didn't get rid of the dog.

Elvio decided to put Lampo on a train going as far away as possible. Months went by and Lampo did not come back. Mivna missed him very much and prayed for his return. Finally one day, a sad, very thin, tired Lampo returned to Elvio's office.Everyone, even the stationmaster, was sorry about what had happened. From then on, Lampo was allowed to ride the trains whenever he wanted. After seven years, Lampo grew old, and he began to need Elvio's help to board the train.

One day Lampo was seen lying dead on the tracks. A year later, a life-sized statue(雕像) of Lampo was set up at Campiglia station.

10.The first time Lampo took the train, Elvio was ______.

A.delighted that he was lucky

B.afraid the dog would bite someone

C.afraid the conductor would see him and be angry

D.excited that Lampo would soon meet his family

11.Lampo's traveling all over Italy caused people to believe that ______.

A.he could read the train schedules

B.he was famous in the country

C.Elvio secretly helped him

D.he was a very special dog

12.The stationmaster threastened that if Elvio didn't get rid of the dog, ______.

A.Elvio would be fired

B.Lampo would be put on the train tracks

C.the stationmaster would send him away

D.a dogcatcher would be called

13.Which of the following is NOT mentioned in the story?

A.The dog was once sent away by Elvio.

B.The dog finally won the stationmaster's heart.

C.The dog was faithful to his master.

D.The dog died when he was seven years old.