题目内容

---Does any one of you know where Jack is?

---_________. Maybe he is in the reading room.


  1. A.
    I am not sure
  2. B.
    I know where he is
  3. C.
    He isn't here
  4. D.
    He leaves here
A
句意:--你们中有人知道杰克在哪吗?--我不太肯定,或许他在阅览室吧。根据“Maybe he is in the reading room”可判断A项为正确答案。
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When you travel in South America, you’d better pay attention to the following three kinds of dangerous South American animals.

Piranhas(水虎鱼)

Although only a small number of piranhas are considered to be dangerous to humans, the red-bellied piranha is definitely one of those. Evidence has shown that a large group of piranhas can absolutely eat a herd of large animals crossing the river, leaving only bones. This fish lives in the freshwater streams of South America, and they can smell the blood from far away and launch attacks swiftly. It is said that they are only dangerous to humans if the water volumes are less and lower.

Anacondas(水蟒)

This South American monster of a creature often appears in the films or your nightmares!They have weighed over 230 kilograms. It is often considered to be the biggest snake in the world. You certainly don’t want to get caught alone with this snake due to its method of attacking and killing its victim. It is indeed a remarkably different brand of snake type as it regularly coils(缠绕)around all over its target, increasing the pressure until eventually its victim dies. Its jaws are powered by large muscles that produce enough power for its over 100 sharp teeth to pass through the thick skin of an crocodile. They don’t have poison. Sometimes they prefer to camouflage themselves so they look like their surroundings and swiftly draw back when humans are near.

Golden Poisonous Frogs

The golden poison frog might be the most-deadly of the South American animal, which is protected by means of poison. This very small frog, less than 55 mm in length, packs enough punch(效力)to take down a pair of African bull elephants. This apparently harmless frog has always been known to have killed people who have touched it directly. It’s also been noted that chicken and dogs have died by contacting things on which a golden poison frog had wandered! In intense colors, they normally look attractive to their targets.

1.What can we learn about piranhas from the passage?

A. Piranhas are the most dangerous animals.    

B. Piranhas like to live in the deep seabed.

C. Piranhas may attack human beings when the water level is low.

D. Piranhas only attack human beings when they cross the river in groups.

2.How does an anaconda kill its victim according to the passage?

A. It often uses its poison to kill its victim.

B. It often uses its strength to kill its victim.

C. It kills its victim mainly using its powerful teeth.

D. It kills its victim with the help of other snakes.

3.The underlined word “camouflage” in Paragraph 3 means “________”.

A. hide itself by appearing like the surroundings

B. terrify and capture the enemy by making much noise

C. move around to search for delicious food

D. give off harmful gas to kill the targets

4.Chicken and dogs are mentioned in Paragraph 4 to show that ________.

A. no animals can survive the poison of the golden poison frog

B. they like to wander along the path of the golden poison frog

C. the golden poison frog likes eating them most      

D. the poison of the golden poison frog is deadly

 

In the near future, people in some parts of the world will watch a new kind of television. It is called the high definition television or the HD-TV. The main difference between an HD-TV and a normal television is the picture. It is more clear and detailed. This is because the HD-TV has many more points and lines that make a television image. Every color television picture contains thousands of red, green and blue points. They all come together as an image in the eye of the person watching. The points are organized in lines that go across the television screen. There are more than five hundred lines in a normal television. The HD-TV has two times as many. To get this clear picture, you must have a big screen. Experts say people using a small screen will see little difference.

The HD-TV also has clear sound. It is like the sound on a CD. All these improvements make an HD-TV very costly. One kind in Japan now sells for more than twenty thousand dollars .A major problem with the HD-TV is its broadcast signal(传播信号.The signal is bigger than normal because it carries more electronic information.

1. What is the main difference between an HD-TV and a normal television?  It is        .

A.the picture        B.the shape         C.the voice          D.the weight

2. What is a color TV image?

A.It is made up of thousands of red, green, and blue points.

B.Points are organized in lines that go across the TV screen.

C.It is a black and white picture

D.Both A and B

3. How many lines does an HD-TV have?

A.Over 250                             B.More than 500

C.More than 1,000                        D.About 250

4. What should you do if you want to get a clear and detailed picture from an HD-TV?

A. You must have the bigger signal for the HD-TV. 

B. You have to get a big screen.

C. You should have a compact disc player.     

D. Both A and B.

 

We use an average of 158 liters of water a day in Britain, for which we pay a bargain price of 28p a liter, but much of this is just cash down the drain, according to water companies.

Most are campaigning to cut the amount we use. And the frontline weapon in their campaign is the water meter (计量器). They want us all to have one and one company is seeking powers to make this compulsory.

The Government is anxious for us to use less water, too. Elliot Morley, the Environment Minister, says he is impressed by the savings when a meter is installed. In most homes, consumption drops by 20 percent.

He also thinks consumers get a good deal from meters. He said, “Most people would find that they would either be exactly the same or better off with water meters and it is a fairer way of paying for water.”

At present, only 25% of households have meters and most of those are in East Anglia. They are installed by water companies, and households then have about £43 added to each bill to cover the cost of installing and reading the meter.

Barrie Clarke, a spokesman for Water UK, said, “We want everyone to be more water wise—to think about the amount of water they use. But with our climate change and different weather patterns, over time it will make economic and environmental sense to think how we use water. This may mean meters.”

Mr. Clarke believes the easiest way to save water is to use less in the garden. In one hour, a sprinkler uses the same amount of water as the average family of four uses in a day—about 632 liters. He said that gardeners should water in the evening so that it dose not evaporate in the heat of the day and that every household should have a water butt to collect rainwater for use in the garden.

1.Which of the following is NOT the advantage of installing water meters?

A.Water consumption drops.

B.It’s fairer to pay for water.

C.They’re installed for free.

D.People are more water wise.

2.The passage implies that ________.

A.water meters are welcome by British people

B.people will be better off with water meters

C.everyone has become wiser to use water now

D.saving water is both good to economy and environment

3.How many liters of water does an average family of four use in a day after installing a meter in Britain?

A.about 126 liters                        B.about 158 liters

C.about 506 liters                         D.about 632 liters

4.The underlined word “evaporate” in the last paragraph means _________.

A.change into steam and disappears

B.absorb the heat of the day

C.sink into the soil

D.turn into ice

5.According to Mr. Clarke, some good ways to save water are as follows EXCEPT ________.

A.using less on the garden

B.using a sprinkler

C.watering in the evening

D.gathering rainfall for garden use

 

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