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				7．A．At a  crossing．                   B．In a  street．C．At a  railway station．              D．At a  police station．			【查看更多】
			


		
           
          


		
          
		
          題目列表(包括答案和解析)
          

		
		
          

          


          
	
          				
          
									
          


          　　Nat lived in a small town in England. He always stayed in England for his holidays, but last year he thought, “I've never been to other countries. All my friends go to Spain （西班牙）, and they like it very much,so this year I'm going there, too.” First he went to the capital, Madrid （馬德里）, and stayed in a hotel for a few days. On the first morning he went out for a walk. In England people drive on the left （左） , but in Spain they drive on the right （右）. Nat forgot about this , and while he was crossing a busy street, a bicycle knocked （撞） him down.
          

          　　Nat lay （躺） on the ground for a few seconds and then he sat up and said, “Where am I ?”
          

          (1) Nat usually spent his holidays ____.
          

          [　　]
          
          

          

          

          A．at home
          		


          B．in England
          		

          

          

          C．in his small town
          		


          D．in Spain
          		

          

          

          (2) Nat wanted to visit ____ this year.
          

          [　　]
          
          

          

          

          A．England
          		


          B．Japan
          		


          C．America
          		


          D．Spain
          		

          

          

          (3) Nat's ____ enjoyed going to Spain for their holidays.
          

          [　　]
          
          

          

          

          A．father and mother
          		


          B．friends
          		

          

          

          C．brothers
          		


          D．classmates
          		

          

          

          (4) In Spain,Nat first spent some days in ____.
          

          [　　]
          
          

          

          

          A．the town
          		


          B．the village
          		


          C．the hotel
          		


          D．England
          		

          

          

          (5) The bicycle knocked Nat down because
          

          [　　]
          
          

          

          

          A．the bike was bad
          		


          B．the rider was on the wrong side
          		

          

          

          C．the rider was careless
          		


          D．Nat was on the wrong side
          		

          

          

          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          If we are driving a car or crossing a street, we will stop when the traffic lights turn red. Why do we use red rather than other colors?
          As we know, scattering (散射) happens when light goes through the air. For the same media, if the wavelength (波長(zhǎng)) is long, the scattering will be short. If the wavelength is short, then the scattering will be long.
          Of all light we can see red has the longest wavelength, so the scattering is the weakest. That means the red light travels far. In fact, it travels farther on rainy days. 
          Using the red light can help drivers in farther areas see the lights. It helps drivers slow down or stop in time. If drivers don’t see the red light until they are close, they may not be able to stop the car in time. An accident may happen. Red can also excite people. We can act more quickly when we see the color red. 
          In a word, red light helps drivers stop in time and help prevent accidents.
          【小題1】______ has the longest wavelength of all light we can see.
          A．RedB．GreenC．YellowD．Black
          【小題2】Red light travels farther on ______ days.
          A．windyB．sunnyC．rainyD．cloudy
          【小題3】Red can make people act more quickly because ____________.
          A．red can make people happierB．the scattering of red is very short
          C．the scattering of red is very longD．red can make people more excited
          【小題4】The underlined word “prevent” means ______ in Chinese.
          A．逃避B．防止C．處理D．檢查
          【小題5】The passage mainly tells us ____________.
          A．why accidents happenB．how the red light travels
          C．why we use red traffic lightsD．how to stop in time at traffic lights
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          If we are driving a car or crossing a street, we will stop when the traffic lights turn red. Why do we use red rather than other colors?
          As we know, scattering (散射) happens when light goes through the air. For the same media, if the wavelength (波長(zhǎng)) is long, the scattering will be short. If the wavelength is short, then the scattering will be long.
          Of all light we can see red has the longest wavelength, so the scattering is the weakest. That means the red light travels far. In fact, it travels farther on rainy days. 
          Using the red light can help drivers in farther areas see the lights. It helps drivers slow down or stop in time. If drivers don’t see the red light until they are close, they may not be able to stop the car in time. An accident may happen. Red can also excite people. We can act more quickly when we see the color red. 
          In a word, red light helps drivers stop in time and help prevent accidents.
          【小題1】______ has the longest wavelength of all light we can see.
          A．RedB．GreenC．YellowD．Black
          【小題2】Red light travels farther on ______ days.
          A．windyB．sunnyC．rainyD．cloudy
          【小題3】Red can make people act more quickly because ____________.
          A．red can make people happierB．the scattering of red is very short
          C．the scattering of red is very longD．red can make people more excited
          【小題4】The underlined word “prevent” means ______ in Chinese.
          A．逃避B．防止C．處理D．檢查
          【小題5】The passage mainly tells us ____________.
          A．why accidents happenB．how the red light travels
          C．why we use red traffic lightsD．how to stop in time at traffic lights
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          If we are driving a car or crossing a street, we will stop when the traffic lights turn red. Why do we use red rather than other colors?
          As we know, scattering (散射) happens when light goes through the air. For the same media, if the wavelength (波長(zhǎng)) is long, the scattering will be short. If the wavelength is short, then the scattering will be long.
          Of all light we can see red has the longest wavelength, so the scattering is the weakest. That means the red light travels far. In fact, it travels farther on rainy days. 
          Using the red light can help drivers in farther areas see the lights. It helps drivers slow down or stop in time. If drivers don’t see the red light until they are close, they may not be able to stop the car in time. An accident may happen. Red can also excite people. We can act more quickly when we see the color red. 
          In a word, red light helps drivers stop in time and help prevent accidents.
          小題1:______ has the longest wavelength of all light we can see.
          A．RedB．GreenC．YellowD．Black
          小題2:Red light travels farther on ______ days.
          A．windyB．sunnyC．rainyD．cloudy
          小題3:Red can make people act more quickly because ____________.
          A．red can make people happierB．the scattering of red is very short
          C．the scattering of red is very longD．red can make people more excited
          小題4:The underlined word “prevent” means ______ in Chinese.
          A．逃避B．防止C．處理D．檢查
          小題5:The passage mainly tells us ____________.
          A．why accidents happenB．how the red light travels
          C．why we use red traffic lightsD．how to stop in time at traffic lights
          

			
          
				查看答案和解析>>
			
          
		
          
				
          
									
          

          Go down this street, then ________ at the second crossing.　　　
          

          [　　]
          

          A．turn right 　　　    
B．turn in 
           

          C． turn on 　　　　　  
D． turn off
          

			
          
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