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    The author presents this passage by . A. telling an interesting story B. describing an activity in a lively way C. testing an idea by reasoning D. introducing a practical method E We already know the fastest, least expensive way to slow climate change: Use less energy. With a little effort, and not much money, most of us could reduce our energy diets by 25 percent or more-doing the Earth a favor while also helping our wallets. Not long ago, my wife, PJ, and I tried a new diet-not to lose a little weight but to answer an annoying question about climate change. Scientists have reported recently that the world is heating up even faster than predicted only a few years ago, and that the consequences could be severe if we don’t keep reducing emissions of carbon dioxide(CO2)and other greenhouse gases that are trapping heat in our atmosphere. We decided to try an experiment. For one month we recorded our personal emissions of CO2. We wanted to see how much we could cut back, so we went on a strict diet. The average US household produces about 150 pounds of CO2 a day by doing common place things like turning on air-conditioning or driving cars. That’s more than twice the European average and almost five times the global average, mostly because Americans drive more and have bigger houses. But how much should we try to reduce? For an answer, I checked with Tim Flannery, author of The Weather Makers: How Man Is Changing the Climate and What It Means for Life on Earth. In his book, he had challenged readers to make deep cuts in personal emissions to keep the world from reaching extremely important tipping points, such as the melting of the ice sheets in Greenland or West Antarctica. “To stay below that point, we need to reduce CO2 emissions by 80 percent, he said. Good advice, I thought. I’d opened our bedroom windows to let in the wind. We’d gotten so used to keeping our air-conditioning going around the clock. I’d almost forgotten the windows even opened. We should not let this happen again. It’s time for us to change our habits if necessary. 【查看更多】

     

    题目列表(包括答案和解析)

    Find Which Direction Is South

    Do you have a good sense of direction? If not, please take with you a compass. But if you forget to take a compass, you can still find your way. 

    It’s never a good idea to imagine that the family member who was entrusted（委托）with the job of map-reading actually knows where the family is. You can tell by the slightly confused load on their faces that nothing on the ground seems to match the map. Never mind. The shu is shining and it’s still morning. If you don’t know the exact time, you can still find out where south is, but you’ll need to be patient. 

    ①Find a straight sick and put it in the ground in a place where you can mark its shadow. 

    ②Try to position the stick as vertically（垂直）as you can. You can check this by making a simple plumb line （铅锤线）with a piece of string and weight. You haven’t got any string? OK, use a thread from your clothes with a button tied at the end to act as a weight. 

    ③Mark the end of the shadow cast by the stick. 

    ④Wait approximately half an hour and mark the end of the shadow again. 

    ⑤Keep doing this until you have made several marks. 

    ⑥The mark nearest the stick will represent the shortest shadow, which is cast at midday, when the sun is highest in the sky and pointing to the exact south. 

    ⑦Pick a point in the distance along the line between the shortest shadow and the stick. 

    ⑧That point is south of where you are. 

    ⑨Now you can turn the map, like you did before, and find which way you should be travelling.

    6To find the direction, we ought to be patient probably because

    A. it is not easy to find a proper stick     

    B. it is not easy to position the stick

    C. it takes hours to make the marks       

    D. it takes about half an hour to make the marks

    The passage would probably be most helpful to      . 

    A. those who draw maps            B. those who get lost

    C. those who make compasses       D. those who do experiments

    Which of the following pictures best shows the way of finding the direction of south?

    The author presents this passage by      . 

    A. telling an interesting story         B. describing an activity in a lively way

    C. testing an idea by reasoning        D. introducing a practical method

    查看答案和解析>>

    阅读理解

    　　Find Which Direction Is South

    　　Do you have a good sense of direction?If not, please take with you a compass．But if you forget to take a compass, you can still find your way．

    　　It’s never a good idea to imagine that the family member who was entrusted(委托)with the job of map-reading actually knows where the family is．You can tell by the slightly confused load on their faces that nothing on the ground seems to match the map．Never mind．The shu is shining and it’s still morning．If you don’t know the exact time, you can still find out where south is, but you’ll need to be patient．

    　　①Find a straight sick and put it in the ground in a place where you can mark its shadow．

    　　②Try to position the stick as vertically(垂直)as you can．You can check this by making a simple plumb line(铅锤线)with a piece of string and weight．You haven’t got any string?OK, use a thread from your clothes with a button tied at the end to act as a weight．

    　　③Mark the end of the shadow cast by the stick．

    　　④Wait approximately half an hour and mark the end of the shadow again．

    　　⑤Keep doing this until you have made several marks．

    　　⑥The mark nearest the stick will represent the shortest shadow, which is cast at midday, when the sun is highest in the sky and pointing to the exact south．

    　　⑦Pick a point in the distance along the line between the shortest shadow and the stick．

    　　⑧That point is south of where you are．

    　　⑨Now you can turn the map, like you did before, and find which way you should be travelling．

    (1)

    To find the direction, we ought to be patient probably because

    [　　]

    A．

    it is not easy to find a proper stick

    B．

    it is not easy to position the stick

    C．

    it takes hours to make the marks

    D．

    it takes about half an hour to make the marks

    (2)

    The passage would probably be most helpful to ________．

    [　　]

    A．

    those who draw maps

    B．

    those who get lost

    C．

    those who make compasses

    D．

    those who do experiments

    (3)

    Which of the following pictures best shows the way of finding the direction of south?

    [　　]

    A．

    B．

    C．

    D．

    (4)

    The author presents this passage by ________．

    [　　]

    A．

    telling an interesting story

    B．

    describing an activity in a lively way

    C．

    testing an idea by reasoning

    D．

    introducing a practical method

    查看答案和解析>>

    Find Which Direction Is South  

    Do you have a good sense of direction? If not, please take with you a compass. But if you forget to take a compass, you can still find your way.   

    It’s never a good idea to imagine that the family member who was entrusted（委托）with the job of map-reading actually knows where the family is. You can tell by the slightly confused load on their faces that nothing on the ground seems to match the map. Never mind. The shu is shining and it’s still morning. If you don’t know the exact time, you can still find out where south is, but you’ll need to be patient.   

    ①Find a straight sick and put it in the ground in a place where you can mark its shadow.  

    ②Try to position the stick as vertically（垂直）as you can. You can check this by making a simple plumb line （铅锤线）with a piece of string and weight. You haven’t got any string? OK, use a thread from your clothes with a button tied at the end to act as a weight.   

    ③Mark the end of the shadow cast by the stick.   

    ④Wait approximately half an hour and mark the end of the shadow again.   

    ⑤Keep doing this until you have made several marks.   

    ⑥The mark nearest the stick will represent the shortest shadow, which is cast at midday, when the sun is highest in the sky and pointing to the exact south.   

    ⑦Pick a point in the distance along the line between the shortest shadow and the stick.   

    ⑧That point is south of where you are.   

    ⑨Now you can turn the map, like you did before, and find which way you should be travelling.  

    68. To find the direction, we ought to be patient probably because  

    A. it is not easy to find a proper stick      B. it is not easy to position the stick  

    C. it takes hours to make the marks        D. it takes about half an hour to make the marks

    69. The passage would probably be most helpful to       .   

    A. those who draw maps           B. those who get lost  

    C. those who make compasses       D. those who do experiments  

    70. Which of the following pictures best shows the way of finding the direction of south?  

     
     

      

    71. The author presents this passage by       .   

    A. telling an interesting story        B. describing an activity in a lively way  

    C. testing an idea by reasoning       D. introducing a practical method  

    查看答案和解析>>

     

    Find Which Direction Is South

    Do you have a good sense of direction? If not, please take with you a compass. But if you forget to take a compass, you can still find your way.  

    It’s never a good idea to imagine that the family member who was entrusted（委托）with the job of map-reading actually knows where the family is. You can tell by the slightly confused load on their faces that nothing on the ground seems to match the map. Never mind. The shu is shining and it’s still morning. If you don’t know the exact time, you can still find out where south is, but you’ll need to be patient.  

    ①Find a straight sick and put it in the ground in a place where you can mark its shadow.  

    ②Try to position the stick as vertically（垂直）as you can. You can check this by making a simple plumb line （铅锤线）with a piece of string and weight. You haven’t got any string? OK, use a thread from your clothes with a button tied at the end to act as a weight.  

    ③Mark the end of the shadow cast by the stick.  

    ④Wait approximately half an hour and mark the end of the shadow again.  

    ⑤Keep doing this until you have made several marks.  

    ⑥The mark nearest the stick will represent the shortest shadow, which is cast at midday, when the sun is highest in the sky and pointing to the exact south.  

    ⑦Pick a point in the distance along the line between the shortest shadow and the stick.  

    ⑧That point is south of where you are.  

    ⑨Now you can turn the map, like you did before, and find which way you should be travelling.  

    1.To find the direction, we ought to be patient probably because

    A. it is not easy to find a proper stick      B. it is not easy to position the stick

    C. it takes hours to make the marks        D. it takes about half an hour to make the marks

    2.The passage would probably be most helpful to       .  

    A. those who draw maps           B. those who get lost

    C. those who make compasses       D. those who do experiments

    3.Which of the following pictures best shows the way of finding the direction of south?

     

    4.The author presents this passage by       .  

    A. telling an interesting story        B. describing an activity in a lively way

    C. testing an idea by reasoning       D. introducing a practical method

     

    查看答案和解析>>

    Find Which Direction Is South

    Do you have a good sense of direction? If not, please take with you a compass. But if you forget to take a compass, you can still find your way.

    It’s never a good idea to imagine that the family member who was entrusted（委

    托）with the job of map-reading actually knows where the family is.

    You can tell by the slightly confused load on their faces that nothing on the

    ground seems to match the map. Never mind. The hun is shining and it’s still morning. If you don’t know the exact time, you can still find out where south is, but you’ll need to be patient.  

    Find a straight stick and put it in the ground in a place where you can mark its

    shadow.

    Try to position the stick as vertically（垂直）as you can. You can check this by

    making a simple plumb line （铅锤线）with a piece of string and weight. You haven’t got any string? OK, use a thread from your clothes with a button tied at the end to act as a weight.   

    Mark the end of the shadow cast by the stick. 

    Wait about half an hour and mark the end of the shadow again. 

    Keep doing this until you have made several marks. 

    The mark nearest the stick will represent the shortest shadow, which is cast at midday, when the sun is highest in the sky and pointing to the exact south. 

    Pick a point in the distance along the line between the shortest shadow and the stick. That point is south of where you are.  

    Now you can turn the map, like you did before, and find which way you should be travelling.  

    68. To find the direction, we ought to be patient probably because

        A. it is not easy to find a proper stick   B. it is not easy to position the stick

    C. it takes hours to make the marks    D. it takes about half an hour to make the marks

    69.The passage would probably be most helpful to       .   

    A. those who draw maps           B. those who get lost

    C. those who make compasses       D. those who do experiments  

    70. The author presents this passage by       .   

    A. telling an interesting story       

    B. describing an activity in a lively way

    C. testing an idea by reasoning      

    D. introducing a practical method

    71. Which of the following pictures best shows the way of finding the direction of south?

    查看答案和解析>>


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