高中英语阅读理解
Although April did not bring us the rains we all hoped for, and although the Central Valley doesn’t generally experience the sound and lightning that can go with these rains, it’s still important for parents to be able to answer the youthful questions about thunder and lightening.
The reason these two wonders of nature are so difficult for many adults(成年人) to explain to children is that they are not very well understood by adults themselves. For example, did you know that the lightening we see flashing down to the earth from a cloud is actually flashing up to a cloud from the earth? Our eyes trick us into thinking we see a downward motion when it’s actually the other way around. But then, if we believed only what we think and see, we’d still insist that the sun rises in the morning and sets at night.
Most lightening flashes take place inside the cloud, and only a relative few can be seen jumping between two clouds or between earth and a cloud. But, with about 2,000 thunderstorms taking place above the earth every minute of the day and night, there’s enough activity to produce about 100 lightning strikes on earth every second.
Parents can use thunder and lightening to help their children learn more about the world around them. When understand that the light of the lightning flashing reaches ther eyes almost at the same moment, but the sound of the thunder takes about 5 seconds to travel just one mile, they can begin to time the interal(间隔) between the flash and the crash to learn how close they were to the actual spark(闪光).
1. According to the author, in the area of the Central Valley, -_______________.
A. rains usually come without thunder and lightning
B. it is usually dry in April
C. children pay no attention to the two natural wonders
D. parents are not interested in thunder and lightening
新人教版英语高一下Module 3《Unit 2 Healthy eating》word同步测试
新人教版英语高一下Module 4《Unit 1 Women of achievement》(第二讲)word同步测试
新人教版英语高一下单元测试-Module 3 Unit1
2013北师大版高一上Unit4《Cyberspace》word同步测试1
2013北师大版高一上unit3《Celebration》word课后练习题Ⅳ
新人教版英语高一下Module 3《Unit 2 Healthy eating》word同步测试(二)
新人教版英语高一下Module 3《Unit 4 Astronomy the science of the stars》word同步测试(一)
新人教版英语高一下Module 4《Unit 1 Women of achievement》(第四讲)word同步测试
新人教版英语高一下Module 4《Unit 1 Women of achievement》word同步测试
新人教版英语高一下Module 4《Unit 3 A taste of English humour》word同步测试(二)
新人教版英语高一下Module 4《Unit 1 Women of achievement》(第三讲)word同步测试
2013北师大版高一上Unit4《Cyberspace》word同步测试2
2013北师大版高一上unit3《Celebration》word课后练习题Ⅲ
2013北师大版高一上Unit6《Design》(Lesson 4)word测试
2013北师大版高一上Unit5《Rhythm》(Lesson 3)word同步辅导与测试
新人教版英语高一下Module 4《Unit 5 Theme parks》word同步测试(一)
新人教版英语高一下单元测试-9月月考
新人教版英语高一下Module 3《Unit 1 Festivals around the world》word同步测试
2013北师大版高一上Unit4《Cyberspace》word测试题
高一 Unit 13 Abraham Lincoln同步题
新人教版英语高一下Module 4《Unit 1 Women of achievement》(第一讲)word同步测试
新人教版英语高一下Module 3《Unit 5 Canada–“The True North”》word同步测试
新人教版英语高一下Module 4《Unit 5 Theme parks》word同步测试
新人教版英语高一下Module 3《Unit 2 Healthy eating》word同步测试(一)
新人教版英语高一下Module 4《Unit 3 A taste of English humour》word同步测试
高一英语下册语法专项练习(新人教)
2013北师大版高一下Unit10《Money》word单元测试
新人教版英语高一下Module 4《Unit 4 Body language》word同步测试
高一Unit 15 同步过关试题及答案
新人教版英语高一下Module 3《Unit 1 Festivals around the world》word同步测试(二)