题目内容
______from above, with a big wooden sword in his hand.
A. Jumped down the boy B. Down the boy jumped
C. Down jumped the boy D. The boy down jumped
C
down置于句首，句子用全倒装。
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 hose(软管) and a mouthpiece. Water weighs 800 times as much as air. Tons of 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 surface, the water pressure becomes less. If the diver rises too quickly, the gases in his blood form bubbles(气泡). The diver is then suffering from the bends(潜函病). The bends can cause a diver to double up in pain. They can even kill him.
【小题1】 On the whole, this text is about _________.
| A．special mixtures of gases in deep sea. |
| B．the problems a diver faces in deep sea. |
| C．air pressure under the surface of sea water. |
| D．a kind of illness that man suffers in the sea. |
| A．deep-sea divers should be in good health. |
| B．divers explore the deep sea only for treasure. |
C．there is  a special mixture of gases under the sea. |
| D．diving under the water too quickly causes a kind of illness. |
| A．The air in his blood is used up. | B．His diving suit weighs too much. |
| C．He comes to the surface too quickly. | D．He tries to do exercise under the sea. |
COOL INVENTIONS
From school to band Practice, the Venturi Eclectic is an Earth-friendly way to get Where you want to go．This battery-powered, zero-emission (meaning it doesn't pollute the air) vehicle runs mainly on renewable energy．Solar panels on the Eclectic's roof absorb sun rays when you're driving．On windy days, you can connect a machine to the car's roof that collects energy from the wind while you're parked．The Eclectic's top speed is 28 miles an hour; the battery lasts for 31 miles before it needs to be recharged．Zipping (迅速行进) around the neighborhood has never been better.
Here's an eco-friendly way to tell time: Simply fill the Bedol Water-powered Clock's tank (箱) with water, add some lemon juice, and the clock will display the time without the need for environmentally harmful batteries．There are two sets of metal electrodes (电极) inside the water tank．Water contains ions (离子) that carry negative and positive charges．These ions complete a charge between the electrodes, creating enough energy to power the clock．Just refill the tank every few weeks, and this clock will keep on 
ticking.
Bloodhound SuperSonic Car (SSC) will be the first car to attempt to break the l,000-mile-an-hour barrier．(The current record is 763 miles an hour.) A concept for now, the rocket-shaped car gets its initial push to 350 miles an hour from a jet engine．Then a rocket fires up, pushing the SSC past 1,000 miles an hour．In order to keep the car streamlined (流线型的), the driver lies back at a 45-degree angle.
You're having a blast at your friend's birthday party．But when it's time to bring out the cake, everyone crowds around, blocking your view．No worries．Throw the Triops into the air, and this clever camera captures the view from above．The Triops can take three pictures at once, each from different angles．You can also record sounds and command the Triops to start shooting whenever it hears that noise．That's one smart camera.
【小题1】According to the passage, the Venturi Eclectic .
| A．is popular with businessmen | B．is suitable for a long trip |
| C．can turn wind into energy | D．has only a little gas emission |
| A．They don't need batteries. | B．They are difficult to operate. |
| C．They can be powered by water. | D．They are environmentally friendly. |
| A．looking at a picture | B．enjoying yourself |
| C．blowing out a candle | D．recording sounds |
| A．The Triops is sensitive to sounds. |
| B．The driver of the SSC must be of great size. |
| C．The color of the Bedol Water-powered Clock is like that of lemon. |
| D．The SSC doesn’t have anything to do with a rocket actually. |
From
school to band Practice, the Venturi Eclectic is an Earth-friendly way to get
where you want to go. This battery-powered, zero-emission (meaning it doesn't
pollute the air) vehicle runs mainly on renewable energy. Solar panels on the
Eclectic's roof absorb sun rays when you're driving. On windy days, you can
connect a machine to the car's roof that collects energy from the wind while
you're parked. The Eclectic's top speed is 28 miles an hour; the battery lasts
for 31 miles before it needs to be recharged. Zipping (迅速行进) around the neighborhood has never been better.
Here's
an eco-friendly way to tell time: Simply fill the Bedol Water-powered Clock's
tank (箱) with water, add some lemon juice, and the clock will
display the time without the need for environmentally harmful batteries. There
are two sets of metal electrodes (电极) inside the water
tank. Water contains ions (离子) that carry
negative and positive charges. These ions complete a charge between the
electrodes, creating enough energy to power the clock. Just refill the tank
every few weeks, and this clock will keep on ticking.
Bloodhound
SuperSonic Car (SSC) will be the first car to attempt to break the
l,000-mile-an-hour barrier. (The current record is 763 miles an hour.) A
concept for now, the rocket-shaped car gets its original push to 350 miles an
hour from a jet engine. Then a rocket fires up, pushing the SSC past 1,000
miles an hour. In order to keep the car streamlined (流线型的), the driver lies back at a 45-degree angle (角度).D
Seeing a volcano erupt (喷发) is a wonderful experience, and you can really feel the beat by climbing to the summit(山顶) of Pacaya for a close-up view. There are guided tours every day up this highly active volcano from Antigua. Giving travelers a chance to see Mother Nature at her most powerful.
Pacaya is an easy drive from Antigua, a beautiful city with many colorful houses along its old streets that are turned into art-works during its Holy Week festival. No matter when you come to Antigua, you won’t miss the Pacaya-tour companies.
But climbing Pacaya is no easy job: it is 2560 metres high, and reaching the summit takes two to three hours of seemingly one-step-forward and two-step-back movements. As you climb, you hear the dull sounds of eruptions high above. Steaming. Hot remains from recent eruptions begin to line the path as you near the active summit; the McKenney Cone(火山锥). Just as though you were going to walk over to the edge of the cone, the road turns to the left and up to the relative safety of the old, inactive summit.
Many tours are timed so that you arrive at the cone of the volcano is plenty of time for sunset and the full contrast between the erupting red lava(熔岩) and the darkening sky. On a good day the view from the summit is extremely exciting. The active mouth boils, sending red lava over its sides, and once in a while shoots hot streams up to 100 metres into the air. There is a strong bad smell in the air even if you take care to be upwind of the cone. As evening turns deeper into the night. the burning lava quietly falls down tae side of the volcano. For you, too, it is time to get down .
1. What is the main purpose of this passage?
|
A．To attract tourists to Pacaya. |
B．To describe the beauty of Pacaya. |
|
C．To introduce guided tours to Pacaya. |
D．To explain the power of nature at Pacaya. |
2.Antigua is a city .
|
A．where people can enjoy cultural festivals |
B．where the daring Pacaya tour starts |
|
C．that gives a close-up view of Paraya |
D．that is famous for its tour companies |
3.Climbing to the McKenney Cone, people will .
|
A．walk directly to the active summit |
B．hear the continuous loud noise from above |
|
C．make greater efforts than to other summits |
|
|
D．see a path lined with remains of earlier eruptions |
4. Many tours are timed for people to .
|
A．get down the mountain in time when night falls |
|
B．avoid the smell from the upwind direction of the cone |
|
C．enjoy the fantastic eruption against the darkening sky |
|
D．appreciate the scenery of the 2560-metre-high mountain |