阅读理解。
Shopping in the United States changes a lot. About ninety years ago most people shopped in small stores
that were owned by one person or a family. Women went from the bakery to the butcher's to the grocer and
on to the fruit and vegetable seller in order to get their food for the week.
Then about sixty years ago, supermarkets were born. In a supermarket, people could get all the different
kinds of food they needed without going to different stores.
The next big change in shopping in the United States was the shopping mall. A shopping mall is a group of
stores under one roof. Because malls allowed people to shop without worrying about the weather, they soon
became very popular. The mall became a place for people to socialize in addition to shopping. If you walk
through a mall, you will see older people sitting, chatting and drinking coffee. Malls are places for teenagers to
hang out. Many teens will often just "go to the mall" and spend time with their friends.
The recent change in American shopping was the superstore. Large chain stores such as Wal-Mart, Office
Depot and Toys "R" Us have been built all across the United States. Because they are so large, they can buy
goods at a great discount and sell them much cheaper than smaller stores.
Sometimes, when they are built near small towns, many of the small town stores have to close. They just
cannot compete with their giant neighbors.
And now, online shopping is becoming more and more popular all over the States. People are too busy to
go to the physical stores, so they go shopping over the Internet. Online shopping has lots of advantages. For
instance, online stores are usually available 24 hours a day. Searching or browsing online shops can bde faster
than browsing the physical stores. While, online shopping also has its disadvantages. People are at higher risk
of being cheated on the part of the merchant than in a physical store. And privacy of personal information may
be let out.
1. Which of the following shows the right order of shopping development in the United States?
①small stores ②superstores ③shopping malls ④shopping online ⑤supermarkets
A. ①②③④⑤
B. ①⑤②③④
C. ①⑤③②④
D. ②③④①⑤
2. Which is the place for people to spend time with others according to the passage?
A. Shopping malls.
B. Small stores.
C. Supermarkets.
D. Superstores.
3. Why can the superstores sell products at much lower prices?
A. Because they are built near small towns.
B. Because they are across the United States.
C. Because they sell all kinds of products people need.
D. Because they can buy goods at a reduction in the prices.
4. What's the disadvantage of online shopping according to the passage?
A. Wasting time.
B. Leaking personal information.
C. Fixed prices.
D. No chance to do physical activities.
，且
。下面说法中正确的是
，再调节
，使电流表指针指到要求位置附近，再调节
对电流的影响小，起精细调节作用 
对电流的影响大，起粗略调节作用