题目内容

  The coal is sold ____ the ton and buyers can’t pay using credit card, so we have to pay ___ cash.

A. by; by                 B. by; in             C. in ; by           D. in; in

B

练习册系列答案
相关题目

Electric ears are dirty.In fact, not only are they dirty, they might even be more dirty than their gasoline-powered cousins.
People in California love to talk about "zero-emissions vehicles", but people in California seem to be clueless about where electricity comes from. Power plants mostly use fire to make it. Aside from the new folks who have their roofs covered with solar cells, we get our electricity from generators. Generators are fueled by something---usually coal, oil,but also by heat generated in nuclear power plants. There are a few wind farms and geothermal plants as well, but by far we get electricity mainly by burning something.
In other words, those "zero-emissions" cars are likely coal-burning cars. It's just because the coal is burned somewhere else that it looks clean. It is not. It's as if the California Greens are. covering their eyes---"If I can't see it, it's not happening." Gasoline is an incredibly efficient way to power a vehicle; a gallon of gas has a lot of energy in it.But when you take that gas (or another fuel) and first use it to make electricity, you waste a nice part of that energy, mostly in the form of wasted heat---at the generator, through the transmission lines, etc.
A gallon of gas may propel your car 25 miles. But the electricity you get from that gallon of gas won't get you nearly as far---so electric cars bum more fuel than gas-powered ones. If our electricity came mostly from nukes; or geothermal,or hydro, or solar, or wind,then an electric car truly would be clean. But for political, technical,and economic reasons,we don't use much of those energy sources.
In addition,electric cars' batteries which are poisonous for a long time will eventually end up in a landfill.And finally, When cars are the polluters, the pollution is spread across all the roads. When it's a power plant, though, all the junk is in one place. Nature is very good at cleaning up when things are too concentrated, but it takes a lot longer when all the garbage is in one spot.
【小题1】 What does "clueless" mean in paragraph 2?

A．People are seeing the California Greens everywhere.
B．People in California love to talk about zero-emissions vehicles.
C．People in California love to have their roofs covered with solar cells.
D．People there have no idea that so far electricity mainly comes from burning
coal, oil,etc.
【小题2】 What is the main idea of the passage?
A．Electric cars are not clean at all
B．Electric cars are better than gasoline-powered ones.
C．People cast doubts on electric cars' batteries.
D．Gasoline is an efficient way to powera vehicle.
【小题3】 The electricity we get from a gallon of gas may make our ear run         
A．not less than 25 milesB．more than 25 miles
C．no more than 25 milesD．not more than 25 miles
【小题4】 According to the passage, electric cars                 .
A．do not burn fuel and more environmentally-friendly
B．are toxic because it is difficult for nature to clean it up when their
batteries are buried in one spot.
C．are very good at cleaning up when things are not too concentrated
D．are poisonous for a long time and will eventually end up in a landfill
【小题5】 It can be inferred from the passage that                 
A．being green is good and should be encouraged in communication
B．electric cars are not clean in that we get electricity mainly by burning
something
C．zero-emissions vehicles should be chosen to protect our environment
D．electric cars are now the dominant vehicle compared with gasoline-powered
cousins

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Dear Boris,
1   
After I had spent a week with my English family, I slowly began to understand their English a little better.    2   Students in my group are from different cities of Britain and their dialects are different too!  Some of their accents are quite strong and they also have their own words and expressions.
3    Before I came to England I had thought that fish and chips were eaten every day.  That’s quite wrong!  I get rather annoyed now when I hear all the foolish words about typical English food.
I had expected to see “London fog”.  Do you remember our texts about it? We had no idea that most of this “thick fog” disappeared many years ago when people stopped using coal in their homes.  But the idea to speak about weather was very helpful.   4  On the other hand, habits are different.  People tell me what is typical British here in London is not always typical in Wales or Scotland.   5  
But what is ordinary for all British is that they follow traditions(传统).  Probably Britain has more living signs of its past than many other countries.  And people have always been proud of having ancient (古老的) buildings in capitals, big cities and the countryside.
I will tell you more about Britain in my other letters.
Love from Britain.

A．The weather in London is really changeable.
B．I have difficulty in understanding my classmates.
C．Thanks for your nice letter.
D．The family I live with are friendly.
E. It’s very different from what I learned at school.
F. Local habits and traditions are not the same as what we knew.
G. But it’s not the language that’s different and surprising.

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Dear Boris,
1   
After I had spent a week with my English family, I slowly began to understand their English a little better.    2   Students in my group are from different cities of Britain and their dialects are different too!  Some of their accents are quite strong and they also have their own words and expressions.
3    Before I came to England I had thought that fish and chips were eaten every day.  That’s quite wrong!  I get rather annoyed now when I hear all the foolish words about typical English food.
I had expected to see “London fog”.  Do you remember our texts about it? We had no idea that most of this “thick fog” disappeared many years ago when people stopped using coal in their homes.  But the idea to speak about weather was very helpful.   4  On the other hand, habits are different.  People tell me what is typical British here in London is not always typical in Wales or Scotland.   5  
But what is ordinary for all British is that they follow traditions(传统).  Probably Britain has more living signs of its past than many other countries.  And people have always been proud of having ancient (古老的) buildings in capitals, big cities and the countryside.
I will tell you more about Britain in my other letters.
Love from Britain.

A．The weather in London is really changeable.
B．I have difficulty in understanding my classmates.
C．Thanks for your nice letter.
D．The family I live with are friendly.
E. It’s very different from what I learned at school.
F. Local habits and traditions are not the same as what we knew.
G. But it’s not the language that’s different and surprising.

根据内容提示完成句子（共5小题；每小题1分，满分5分。不少于3个词，不超过5个词。）

1.To the north of the city, most of the 10,000 miners __________(被营救)the coal mines there.

2.__________(埋头工作) for so many years，the scientist succeeded at last.

3.I knew it would help us _____________(实现我们的梦想)making black and white people equal. 

4.She started singing to the baby and was__________(报以微笑). 

5.When he heard about the bad news he _________(大哭起来).

 

I bent down in the shade under a sixty-foot-tall cactus（仙人掌）, waiting for them to appear. The time was eight thirty in the morning. For seven mornings I had come to the same distant spot in the Sonoran Desert, in southern Arizona. I was here to watch the roadrunner, a small fast-running bird.

I spotted two birds under a bush with red flowers. The roadrunners rushed out from under it. The birds moved rapidly on long skinny legs. Their feathers were brown and black. Their tails were seven inches long. Roadrunners use the tail for balance when running.

That day, the roadrunners performed a courtship（求婚）dance. They ran in wild circles. Suddenly, one stopped and stood still, its round eyes full of light. The second bird took hold of a small stick off the ground and presented it to the first, a gift serving as a symbol of their partnership.

    I returned to the spot each day, leaving bits of boiled chicken hoping they would return. Roadrunners eat snakes, lizards, mice, beetles, and spiders. Food is in short supply in the desert, so my offerings were welcome. The pair grew used to me.

    Soon after the pair finished building their nest six white eggs appeared in the nest bowl. In about three weeks, six roadrunner chicks, skin as black as coal, cried for food. Their parents brought food such as fence lizards and stink bugs. They fed their young until they were a month and a half old.

    Early one morning, a coyote（丛林狼）came around, nose to the ground, for fresh bird meat. The roadrunners fearlessly drove the coyote away, but it was soon back. After three attacks the coyote went away for good, tail between its legs.

    I stopped watching the nest when the little roadrunners, at two months of age, were ready to live on their own. It was hard to break away from “my roadrunner family.” Whenever I see a roadrunner now, rushing over the ground, I say hello to it as an old friend.

1.The author went to the Sonoran Desert to       .

   A. go on a tour of the desert

   B. carry out research into some animals in the desert

C. make an observation about a kind of bird

   D. enjoy an adventure in southern Arizona

2.What can we learn about roadrunners from the text?

A. They have short tails and legs.        

B. They move at a fast pace.

C. Their feathers are red and brown.      

D. They don’t like boiled chicken.

3.We can learn from the last but one paragraph that the roadrunners were        .

   A. brave         B. clever         C. easily-frightened         D. lazy

4.Which of the following would be the best title for the text?

   A. How do roadrunners seek a partner?

B. My close friendship with roadrunners.

   C. Roadrunner family in the Sonoran Desert.        

D. How did I find roadrunners in Arizona?

 

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