Online shopping started not so long ago. Tim Berners-Lee invented the World Wide Web in 1990. The first online bank opened in 1994. In 1995, Amazon started operating and is now one of the largest online shopping malls. Then in 1996, eBay started its online shopping site.
By sitting at home you can now buy anything from knives to cars. The worry you may have about traveling and parking can be avoided while you shop online. With online shopping, you need not worry about the weather. Online shops have no holidays, closing times or any other problems. You can shop 24 hours a day, 7 days a week and 365 days a year. Some online shops also keep customers’ opinions about each product, so you can easily find out what other customers think about the product before buying it.
When you go for real-world shopping, you can actually touch and feel it, but in online shopping you can only see the pictures. Also if you are shopping online, you have to be careful with your credit cards.
The first step in online shopping is to search for what you want to buy. Once you find the required product, put it in a “shopping cart” and continue shopping. After you have got enough in your “shopping cart”, check out the product. You can add or take out the products in your shopping cart. The next step is to login(登录) using a username and a password. Enter the address where you want the product to be sent. Some sites even ask for your email, phone numbers, etc. Then wait for the confirmation(确认)of your order. You can also cancel the order if needed. Online shopping is a different experience and you can make shopping online easy when you get used to it.
51. When shopping online, you can _______.
A. buy anything wherever you go      B. park your cars where you want to   
C. touch anything you want to buy     D. know what others think of the product
52. The second paragraph mainly tells us ______.
A. the things people can buy in online shops
B. people can know different opinions of customers
C. people can do online shopping at their own homes
D. the advantages people can have through online shopping
53. From the text we can know that ______.
A. customers needn’t have a username to buy something online
B. customers must give their emails as well as their phone numbers
C. customers should be careful with their credit cards when shopping online
D. once customers put the products in their “shopping carts”, they can’t change them
54. If you want to buy a cup online, what is the right order of the following things you can do?
a. Enter the address
b. Search for a right cup
c. Wait for the confirmation of the order
d. Put the cup into your “shopping cart”
A. b-c-d-a    B. b-d-a-c    C. a-b-c-d    D. c-d-a-b