题目内容

7. The soldier        (dive) from the bridge and rescued the drowning girl.

  7. dived

练习册系列答案
相关题目

  The sea has always interested man. From it he can get food,minerals,and treasure. For thousands of years,he could sail on it. But he could not go far beneath its surface.

  Man wants to explore deep into the sea. However,he is not a fish. He must breathe air,so he can't stay under the water's surface for any length of time. To explore deep water,man faces even more dangers and problems.

  A diver who wants to stay under water for more than a few minutes must breathe air or a special mixture of gases. He can wear a diving suit and have air pumped to him from above. He can carry a tank of air on his back and breathe through a nose and a mouthpiece. Water weighs 800 times as much as air. Too much water pushes against a diver deep in the sea. His body is under great pressure.

  When a diver is under great pressure,his blood takes in some of the gases he breathes. As he rises to the surface,the water pressure becomes less. If the diver rises too quickly,the gases in his blood form bubbles. The diver is then suffering from the bends.The bends can cause a diver to double up in pain. They can even kill him.

1. On the whole,this passage is about       .

   A. special mixtures of gases in the deep sea

   B. the problems man faces in deepsea diving

   C. air pressure under the surface of sea water

   D. a kind of illness that man suffers from in the sea

2. A diver's body in deep water         .

   A. is under great pressure

   B. is just like that of a fish

   C. suffers from the bends

   D. weighs very little

3. The passage does not say so,but it makes you think that       .

   A. deepdivers should be in good health

   B. divers explore the deep sea only for treasure

   C. diving under the water too quickly causes a kind of illness

   D. there is a special mixture of gases under the sea

4. From the passage we can see that         .

   A. the sea began to interest man a few years ago

   B. man is not at home deep in the sea

   C. all divers will get the bends sooner or later

   D. the air in the sea water will kill a diver if he is not careful

3. 那个明星戴了一副大墨镜以免被狂热的支持者们认出来。

  [2015河南郑州三月模拟] The year of 2014 saw smart people al?ways busy inventing useful things,which have helped to make the world better,smar?ter and a little more fun. Now,let's take a look at some of the inventions. Super Banana Australian biogeneticist (生物遗传学家) James Dale visited Uganda,a poor African country,in the early 2000s,where he found that 15〜30 per cent of children under 5 were at risk of going blind because they did not get enough vitamin A. Dale also learned that people there love bananas. They eat 3  to 11 bananas a day. So he came up with the idea to plant bananas containing added nutri?tion in order to improve Ugandans' health. With the help of Bill Gates' foundation,Dale developed the "super ba?nana". He added a gene to the fruit,making it rich in vi?tamin A.

  Coaching Basketball Basketball is popular worldwide,partly because you only need a hoop (篮蟹) and a ball to play the game. But this simple game has experienced a technology makeover this year with the development of a smartsensor basket?ball.

The ball,called the 94Fifty Basketball,has nine sen?sors inside. They can tell you anything from how fast you are going to how accurate your shot angles are.

With a Bluetooth chip inside,the basketball can con?nect to your smartphone and tell you in the voice of a coach to "snap your wrist"? or "go faster", depending on the data.

  The Hovercraft (悬浮滑板) Thanks to the Californiabased company Hendo,fly?ing past your friends on a floating board could soon be?come a reality.

The hovercraft has four small engines. These create a special magnetic field which produces enough force to lift the board off the ground.

  At the moment,the hoverboard can only float an inch off the ground for 15 minutes and must fly over a metal material. It's expensive too,at $ 10,000 (61,810yuan) , but the company hopes that one day the technology could be used.

  Wireless Electricity Most of us could not bear to live without wireless In?ternet. We use it every day for everything from our phones to our cars. But one company wants to go a step further,by combining wireless technology with electrici?ty.

  That's right,no more tangled (缠绕的) wires and no more having to sit and hold your cellphone near a power socket (插座) in the corner of the room. WiTricity,a US company,has invented technology that can power objects up to 2. 4 metres away. It uses a special plugin coil (线圈) that creates a magnetic field！

15. Which of the following statements would James Dale agree with?

   A. Children in Uganda should eat fewer bananas.

   B. Vitamin A is largely found in fruits like bananas.

   C. Super bananas are definitely a safe biological prod?uct.

   D. People's eating habits can be used to develop new food.

16. What is the biggest advantage of the 94Fifty Basket?ball?

   A. The sensors hidden inside can help players run faster in a game.

   B. It can help players to improve their shooting and ball handling skills.

   C. It allows players to connect to their smartphones while playing basketball.

   D. The Bluetooth chip inside allows its users to listen to music while playing basketball.

17. What can we learn about the hovercraft from the text?

   A. It enables its users to float off the ground freely.

   B. It can work on many different kinds of surfaces.

   C. It still needs to improve its power and efficiency.

   D. It is an affordable means of transport for a family.

18. What do the hovercraft and wireless electricity have in common according to the text?

   A. They create magnetic fields to produce power.

   B. They apply technologies to many things in life.

   C. They apply technologies which can produce elec?tricity.

   D. They use wireless technology to improve their products.

3.      (离婚) Mary,he got married to his secretary soon.

2. When the bombing started,we were led by our father and f        to places of safety.

10. In China people often ask the police to        them        (帮忙) when in trouble.


2. After the earthquake,the first thing the local government did was to provide        (accommodate) for the homeless families.

1.        (tell) many times,he still couldn't understand what the professor said.

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网