It’s Tuesday afternoon, and I’m in Rheinburg, Germany, visiting the Extra Future Store. The “store of the future” is attracting a lot of attention these days– but not for it’s prices. Instead, people are coming from all over to experience a new way to shop.

   The experience is less like shopping in a supermarket and more like playing some kind of high–tech game. It starts as I enter the store and choose a shopping cart(购物车). First, I swipe my store ID card through a computer on the cart. The computer’s screen comes on, a map of the store shows, and the journey begins.

   As I shop, antennas(天线) around the store send information about different specials to the computer on my cart. Attracted by one of the ads, I choose a box of cheese. I hold up the box to the computer. It displays the price and also suggests that a certain type of bread would be good with it. The map on my chart shows me where to find the bread. It’s like the store is helping me to shop.

   How does the store make this kind of shopping experience possible? The answer is radio frequency identification chip (or RFID射频识别). Each chip has a special number. Using an RFID reader on the computer, we can get information from a chip about the product(产品). RFID will help shoppers find the things in a store more quickly– products that are just right for them. In addition, people won’t have to wait in long lines to pay. The things in your cart will be read by the computer and the money will be paid by your store ID card automatically(自动地). So you can simply walk out of the store with your shopping bags.

  Sounds good, right? Maybe you will experience the new shopping soon in your city.

1.Why are so many people coming to the Extra Future Store?

A. They hope to buy a new kind of computers.

B. They want to play some new high– tech games.

C. They expect to experience a new way of shopping.

D. They plan to learn how to use the FRID readers.

2.What is the right order to shop in this store?

①Look for the things you want to buy and find them.

②Swipe your store ID card through the computer.

③Walk out of the store without waiting in lines.

④The computer shows you a map and some ads.

⑤Hold up the things to the computer to be charged.

A.②①④③⑤   B.①②⑤③④   C.②①⑤③④   D.②④①⑤③ 

3.What are Not so necessary for this kind of new stores?

A. Carts with computers.  B. RFID readers.  

C. Many shop assistants.  D. Good products.

4. Which of the following is the advantage of this new store?

A. The things in the shop are much cheaper.

B. It costs more time to find the things you need.

C. You will buy more things than you really need.

D. It’s more convenient to find the products and to pay.

从方框中选择合适的选项补全对话，其中有两项多余

A. Because it has the best clothing.

B. It has the worst music.

C. What's the best clothing store?

D. Because it has the most interesting music.

E. But easy Listening 979 is the most popular.

F. Just listen to their commercials.

G. What's the best radio station?

Hi, I'm doing a survey for the Bedford Daily News. 1.______

Boy: I guess Jammin' 107 FM is the best.

Reporter: Why?

Boy: 2._____ It's much better than the other stations in town.

Reporter: What about the other radio stations?

Boy: Well, I think Oldies 102.1 FM is very bad. 3.______

Reporter: I heard that. 4.______

Boy: Not for me.

Reporter: Why not?

Boy: 5.______ They're worse than the commercials of All Talk 970 AM!

Wind is the great maker of waves. There are exceptions (例外), such as the tidal (潮汐的) waves sometimes caused by earthquakes under the sea. But the waves most of us know are caused by winds blowing over the sea .

Now let’s learn some physical (自然地理学的) things about it. A wave has height, from low point to high point . It has length (长度)--the distance from this high point to that of the following wave. The period of the wave means the time it takes for succeeding high points to pass a fixed point. None of these things stays the same--for all depend upon (依靠)the wind, upon the depth (深度) of the water and many other matters.

The water that makes up a wave does not advance with it across the sea. Each drop of water turns around in a little circle with the passing of the wave, but returns very nearly to its original position (原先的位置). And it is lucky that this is so. For if the huge groups of water that make up a wave really moved across the sea, sailing would be impossible. If we want to find the speed of a wave, we may use the following way : Speed =" wavelength" × frequency (频率).

Here, wavelength is the distance between two high points , frequency means the number of cycles per second

1.What causes waves?

2.Which of the following is TRUE according to the passage?

3.The speed of Wave 1 is 100 cm/s, frequency 10. The frequency of Wave 2 is 300, while its speed is twice that of Wave 1. Which of the following is right?

4.Where can we find this passage?

The price of the iphone4 is too_____. Fm afraid I can't afford it.

A. high         B. expensive   C. cheap    D. low

The following chart(表) shows some information about the student’s after-school activities in a middle school. 100% means all the students, 51%—99% means most students, 1%—50% means some students and 0% means no students.

1.This chart is about the ______ of the students in a middle school.

          A. numbers           

B. lessons

          C. hobbies          

D. after-school activities

2. _________ of the students can take enough（足够的） exercise during the week.

          A. 65%     B. 25%        C. 10%      D. 75%

3. If there’re fifty students doing housework every day, there will be ________students surf the Internet every day.

A. 100          B. 50         C. 150       D. 250