According to the Cost-Benefit Principle, you should go see the latest

1.You are trying to decide whether to purchase the latest Harry Potter book online or borrow it from the library. There is no charge for borrowing a book from the library, but going to the library takes more time than ordering a book online. Regardless of how you get the book, its benefit to you is the same. If the cost of buying the book online is $13, then you should:选项： A:buy the book online because it takes less time.; B:borrow the book from the library because you can get it from the library for free.; C:borrow the book from the library if the cost of doing so (in terms of the extra time it takes) is greater than $13.; D:borrow the book from the library if the cost of doing so (in terms of the extra time it takes) is less than $13.

2.If a perfectly competitive firm can sell each unit of output for $9, and the marginal cost of the last unit produced is $8.50, then the: 选项：extra benefit of the last unit produced is greater than the extra cost.extra benefit of the last unit produced is less than the extra cost.firm is earning an average profit of $0.50.firm should lower its output level in order to increase profits.

3.﹣ Where were you when I called you yesterday afternoon？﹣ I _______ with my parents．（　　）选项： A:see a movie B:was seeing a movie C:will see a movie D:have seen a movie

4.Rational people compare the cost and benefit of behavior, only when_______ is effective.选项： A:the total benefit is greater than or equal to the total cost; B:average benefit greater than or equal to average cost; C:marginal benefit greater than or equal to marginal cost; D:maximum total benefit or minimum total cost

5.Have you heard that they’re a new Star Wars movie

6. In the long run, all of a firm's costs are variable. In this case the exit criterion for a profit-maximizing firm is to shut down if 选项： A、 price is less than average total cost. B、 price is greater than average total cost. C、 average revenue is greater than average fixed cost. D、 average revenue is greater than marginal cost.

7.In which of the following perfect competition situations will a firm shut down in the long run? 选项： A: The average revenue is greater than the average variable cost but less than the average total cost. B: The average revenue is less than the average variable cost but greater than the average total cost. C: The average revenue is greater than the average variable cost and the average total cost.

8.Passage ThreeOne of the important things in the world is friendship. In order to have friends, you have to be a friend. But how can you be a good friend at school?Listen—Listen when they are talking. Don’t say anything unless they ask you a question. Sometimes it’s not necessary for you to have anything to say; they just need someone to talk to about their feelings. Help them —if your friend is ever in need of something, be there to help them .You should try to consider them first, but you needn’t do everything they want you to do. Try to take an extra pencil or pen with you to classes in case they forget one. Have a little extra money in your pocket because they may forget something they need._______—Try to make plans with your friends. Go shopping, go for ice cream, have a party, go to a movie and so on. Take time to know each other even better by doing something you both enjoy. By planning things together, you both can have a good time. And you’ll remember these things when you are all old. 44题. According to the passage, if you want to make friends, you have to _______. 选项： A: be rich B: be powerful C: be healthy D: be a friend

9.For any given level of output: 选项： A:marginal cost must be greater than average cost. B:average variable cost must be greater than average fixed cost. C:average fixed cost must be greater than average variable cost. D:fixed cost must be greater than variable cost. E:None of the above is necessarily correct.

10. M: There is a movie tonight．Would you like to go and see it W: I’m sorry．I have to prepare for tomorrow’s test．What does the woman mean(). A. She has to see the movie. B. She is tired. C. She doesn’t want to see the movie.

11. As quantity increases, which of the following must be true if average total costs are rising? A: Marginal cost must be greater than average total cost B: Average fixed cost must be less than average variable cost C: Marginal cost must be less than average total cost D: Average fixed cost must be increasing

12.Leo: It will be Saturday tomorrow. What are you going to do?Sue: 1 I'm going to watch the latest movie June.Leo: 2 Sue: No, I like to watch them on the Internet.Leo: I like to watch movies in the cinema. 3 Sue: My favorite film star is Tom Hanks.Leo: 4 Sue: He won an Oscar for his role in Forrest Gump. And Saving Private Ryan is also famous. His performance really rocked.Leo: What types of movies do you prefer?Sue: 5 选项： A:

Which film star do you like best?

B:

What films did he act in?

C:

. Do you often watch movies in the cinema?

D:

I like many types, such as romance, action, and Sci-fi.

E:

I'm a movie lover.

13.—T was wondering if you would like to go to see a movie another time?—_____ 选项： A: Here you are. B: That sounds great. C: Yes, please. D: No, thanks.

14.Did you see the movie Dangal last weekend?-No , I hardly go to the cinema these days I am busy with working Overtime 选项： A: Did you see the movie Dangal last weekend?-No , I always go to the cinema these days. I am busy with working Overtime. B: Did you see the movie Dangal last weekend?-No , I often go to the cinema these days. I am busy with working overtime. C: Did you see the movie Dangal last weekend?-No , I seldom go to the cinema these days. I am busy with working overtime.

15.Passage ThreeOne of the important things in the world is friendship. In order to have friends, you have to be a friend. But how can you be a good friend at school?Listen—Listen when they are talking. Don’t say anything unless they ask you a question. Sometimes it’s not necessary for you to have anything to say; they just need someone to talk to about their feelings. Help them —if your friend is ever in need of something, be there to help them .You should try to consider them first, but you needn’t do everything they want you to do. Try to take an extra pencil or pen with you to classes in case they forget one. Have a little extra money in your pocket because they may forget something they need._______—Try to make plans with your friends. Go shopping, go for ice cream, have a party, go to a movie and so on. Take time to know each other even better by doing something you both enjoy. By planning things together, you both can have a good time. And you’ll remember these things when you are all old. 42题. When we provide help for our friends, we should _______. 选项： A: try to do everything for them B: consider them before ourselves C: change their bad habits first D: ignore their faults

16.A monopolistically competitive firm will increase its production if a. marginal revenue is greater than marginal cost. b. marginal revenue is greater than average total cost. c. price is greater than marginal cost. d. price is greater than average total cost.

17.New firms will enter a monopolistically competitive market if a. marginal revenue is greater than marginal cost. b. marginal revenue is greater than average total cost. c. price is greater than marginal cost. d. price is greater than average total cost.

18.Did you see the movie Dangal last weekend? -No, I hardly go to the cinema these days. I am busy with working overtime. 选项： A:A: Did you see the movie Dangal last weekend? -No, I always go to the cinema these days. I am busy with working overtime. B:B: Did you see the movie Dangal last weekend? -No, I often go to the cinema these days. I am busy with working overtime. C:C: Did you see the movie Dangal last weekend? -No, I seldom go to the cinema these days. I am busy with working overtime.

19. Wise buying is a positive way in which you can make your money go further. The 1 you go about purchasing an article or a service can actually 2 your money or can add to the cost.Take the simple example of a hairdryer. If you are buying a hairdryer, you might 3 that you are making the best buy if you choose one whose look you like and which is also the cheapest 4 price. But when you get it home you may find that it 5 twice as long as a more expensive model to dry your hair. The cost of the electricity plus the cost of your time could well make your hairdryer the most expensive one of all. So what principles should you adopt when you go out shopping? If you keep your home, your car or any valuable possession in excellent condition, you'll be saving money in the long run. 选项： A:form B:fashion C:way D:method