Questions 1 to 5 are based on the following passage.
Time spent in a bookshop can be most enjoyable, whether you are a book-lover or merely there to buy a book as a present. You may even have entered the shop just to find shelter from a sudden shower. Whatever the reason, you can soon become to-tally unaware of your surroundings. The desire to pick up a book with an attractive dust-jacket is irresistible, although this method of selection ought not to be followed, as you might end up with a rather dull book. You soon become engrossed in some book or other, and usually it is only much later that you realize you have spent far too much time there and must dash off to keep some forgotten appointment-without buying a book, of course.
This opportunity to escape the realities of everyday life is, I think, the main attraction of a bookshop. There are not many places where it is possible to do this. A music shop is very much like a bookshop. You can wander round such places to your heart’s content. If it is a good shop, no assistant will approach you with inevitable greeting: "Can I help you, sir?" You needn’t buy anything you don’t want. In a bookshop an assistant should remain in the background until you have finished browsing, then, and only then, are his services necessary. 0 course you may want to find out where a particular section is, but when he has led you there, the assistant should retire carefully and look as if he is not interested in selling a single book.
You have to be careful not to be attracted by the variety of books in a bookshop. It is very easy to enter the shop looking for a book on ancient coins and to come out carrying a copy of the latest best-selling novel and perhaps a book about brass-rubbing-something that had only vaguely interested you up until then. This volume on the subject, however, happened to be so well illustrated and the part of the text you read proved so interesting that you just had to buy it. This sort of thing can be very dangerous. Apart from running up a huge account, you can waste a great deal of time wandering from section to section.
1. "Dust-jacket" in the first paragraph probably means ______.
A a kind of clothes
B protecting paper cover of a book
C book cover full of dust
D the title of a book
答案:B
通过文章意思可知应该是指书的护封。
2. You may spend too much time in a bookshop because ______.
A the dust-jackets of some books are very attractive
B you start reading one of the books
C it is raining outside
D you have to make sure you don’t buy a dull book as a present
答案:B
文中第一段You soon become engrossed in some book or other，提到是由于沉浸在书中，因此只有B项合适。
3. In a good bookshop ______.
A nobody notices you
B the assistant greets you in a friendly way
C you feel as if you were in a music shop
D you find yourself satisfied with browsing
答案:D
文中第二段If it is a good shop，no assistant will approach you with in-evitable greeting：“Can I help you，sir?”You needn’t buy anything you don’t want．提到好的书店是不会有店员过来和你打招呼的，而会让你自己充分地浏览，因此只有D项符合。
4. An assistant’s help is needed ______.
A the moment you have entered the shop
B before you start browsing
C only when you have finished browsing
D when you have made your choice
答案:C
文章第二段In a bookshop an assistant should remain in the background until you have finished browsing，then，and only then，are his services necessary明确提到了C选项的内容。
5. Picking up books that vaguely interest you can be dangerous because ______.
A you may forget about the book you plan to buy
B you have to give up the best-selling book
C it makes you break your appointment
D it costs you too much money and time
答案:D
文章最后一段Apart from running up a huge account，you can waste a great deal of time wandering from section to section提到不仅要花费大量的金钱还要花费大量的时间，因此选D。