The Mystery of the Flashing Fireflies

During summer nights fireflies flash in the darkness. They look like bright spots of light dancing on the breeze. Catching them in a jar for a few minutes can be fun. Fireflies are not really flies, though. They are winged beetles. Scientists are using these special beetles to learn more about our world.

The reason a firefly flashed its light is to find a mate. There are around two thousand species, or kinds, of fireflies. Fireflies mate only with their own species. Each kind of firefly has its own flash pattern. It is important that fireflies recognize this pattern. That way they can find bugs of their own kind. The male firefly flies around in the sky while the female firefly stays close to the ground.

For many years, how a firefly flashes its light was a mystery. Scientists now know that a firefly’s light is a cold light. It gives off all of its power as light. It does not produce heat. A normal light bulb gives off only ten percent of its power as light. The rest of the power is wasted as heat. That is why a light bulb that has been on for a while is very hot. The firefly’s light does not feel hot like a light bulb.

Scientists have also learned that fireflies have a small built-in lantern. This special lantern is located inside a firefly’s body. To create light, a gas flows through tiny tubes. This causes the firefly to light up. A firefly can also turn its light on and off quickly. This puzzled scientists. They learned that short bursts of this gas make the firefly glow. When the gas fades, the light goes out. This process happens very quickly.

Scientists know that what they learn from fireflies will be important. Medical studies using fireflies are helping scientists fight illnesses in human beings. They have made new medicines from the chemicals used by fireflies to make light. Fireflies have also helped with new discoveries. New flashlights and flares have been made based on fireflies. These new flashlights and flares produce a cold light like a firefly. This way all the power makes the light shine. This little bug may be a pleasure to watch, but it is also an important part of our lives.

Why did the author most likely include Paragraph 4?

A. To explain how fireflies make light.        B. To describe different kinds of fireflies.

C. To show how much power fireflies use.     D. To describe why fireflies make light.

Which of these is the best choice for a heading for Paragraph 5?

A. The Cool Light of Fireflies               B. Watching Fireflies Flash

C. Understanding the Patterns               D. Learning from Fireflies

According to the passage, a firefly’s light is different from a light bulb’s light because the firefly’s light _______.

A. shines brighter  B. does not fade   C. lasts longer  D. is not hot

A reader asks this question about the passage: “ How many different kinds of fireflies are there?” Which paragraph from the passage answers the question?

A. Paragraph 2   B. Paragraph 3     C. Paragraph 4   D. Paragraph 5

The author most likely wrote this passage in order to __.

A. tell why fireflies light up                B. give facts about fireflies

C. show how fireflies help doctors           D. compare a firefly to a light bulb

【小題1】A【小題1】D【小題1】D【小題1】A【小題1】B


解析:

略

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：閱讀理解

A week ago, I had the great pleasure of reading an e-book, When Money Talks, Listen! By Rich Ezzo．It took only about an hour to read.

   When I first received a copy, I thought it was a Get Rich Quick type of publication．Nothing is wrong with Get Rich Quick, but my mind just doesn’t chase after dreams of wealth．I think that if God ever wants me to be rich, he knows where to find my purse.

   When I began reading When Money Talks, Listen!, I was overjoyed to find that Rich Ezzo isn’t money hungry either．He, too, is hungry far more important than money．

Since I love this e-book so much, why wait a week to write the review? Simple．I wanted to see if the effect it had on me was a keeper．After reading the last word of the e-book, I totally agreed with the subtitle which promised to forever change the way we thought about money．I had so many thoughts running around my mind that I had to install(安裝) a stoplight to stop some while others made their way into the picture, then I yielded(讓路) them as a few ones arrived in town．I had a mental traffic jam, which only goes to show how slow the traffic usually is．

   It has been a week and the effect is the same．I truly do look at money differently and have even done a few things differently this week．This is an e-book you’ll want to read, I promise．I often recommend books to my daughter, and this is one that I didn’t just “suggest”---I left it open at the bottom of the computer and told each one, “Read it, you’ll love it.”

   I would never point someone in a direction I wouldn’t go myself．I urge you to visit the author’s website, Myster Money, and to download the e-book．You won’t regret it.

The author wrote this passage to _________　

       A．strongly recommend an e-book.

　    B．show the author's attitude to money.

　    C．introduce the general idea of an e-book.

　    D．point out Rich Ezzo isn't money hungry.

According to the passage, a Get Rich Quick type of publication ______.

       A．is what the author really cares for

       B．deals with how to make money

       C．is also an e-book written by Rich Ezzo

       D．is more popular than e-books

The author didn't write the review as soon as he finished reading the book because________．

　    A．he was too excited to write anything

　    B．he was not sure whether he did well

　    C．he had to wait for Rich Ezzo's permission

　    D．he wondered if the book would have long influence on him

By saying the underlined sentence in Paragraph 4, the author probably __________.

　    A．shows that the book brought him many new thoughts

　    B．shows how bad the traffic is in town

　    C．describes the difficulty in understanding the book

　    D．explains it's hard to change one's attitude to money

Which of the following is supported by the passage?

      A．The author had known Rich Ezzo before.

　    B．The author hasn't dreamed of getting rich immediately.

　    C．The author always prefers e-books to paper books.

　    D．The author likes Get Rich Quick-type of publications.

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

   A week ago, I had the great pleasure of reading an e-book, When Money Talks, Listen! By Rich Ezzo. It took only about an hour to read.

   When I first received a copy, I thought it was a Get Rich Quick type of publication. Nothing is wrong with Get Rich Quick, but my mind just doesn’t chase after dreams of wealth. I think that if God ever wants me to be rich, he knows where to find my purse.

   When I began reading When Money Talks, Listen!, I was overjoyed to find that Rich Ezzo isn’t money hungry either. He, too, is hungry far more important than money.

Since I love this e-book so much, why wait a week to write the review? Simple. I wanted to see if the effect it had on me was a keeper. After reading the last word of the e-book, I totally agreed with the subtitle which promised to forever change the way we thought about money. I had so many thoughts running around my mind that I had to install(安裝) a stoplight to stop some while others made their way into the picture, then I yielded(讓路) them as a few ones arrived in town. I had a mental traffic jam, which only goes to show how slow the traffic usually is. 

   It has been a week and the effect is the same. I truly do look at money differently and have even done a few things differently this week. This is an e-book you’ll want to read, I promise. I often recommend books to my daughter, and this is one that I didn’t just “suggest”---I left it open at the bottom of the computer and told each one, “Read it, you’ll love it.”

   I would never point someone in a direction I wouldn’t go myself. I urge you to visit the author’s website, Myster Money, and to download the e-book. You won’t regret it.

The author wrote this passage to _________　

A. strongly recommend an e-book.

　B. show the author's attitude to money.

　C. introduce the general idea of an e-book.

　D. point out Rich Ezzo isn't money hungry.

According to the passage, a Get Rich Quick type of publication ______.

A. is what the author really cares for

B. deals with how to make money

C. is also an e-book written by Rich Ezzo

D. is more popular than e-books

The author didn't write the review as soon as he finished reading the book because________.

　A. he was too excited to write anything

　B. he was not sure whether he did well

　C. he had to wait for Rich Ezzo's permission

　D. he wondered if the book would have long influence on him

By saying the underlined sentence in Paragraph 4, the author probably __________.

　A. shows that the book brought him many new thoughts

　B. shows how bad the traffic is in town

　C. describes the difficulty in understanding the book

　D. explains it's hard to change one's attitude to money

Which of the following is supported by the passage?

  A. The author had known Rich Ezzo before.

　B. The author hasn't dreamed of getting rich immediately.

　C. The author always prefers e-books to paper books.

　D. The author likes Get Rich Quick-type of publications.

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

A week ago, I had the great pleasure of reading an e-book, When Money Talks, Listen! By Rich Ezzo. It took only about an hour to read.

   When I first received a copy, I thought it was a Get Rich Quick type of publication. Nothing is wrong with Get Rich Quick, but my mind just doesn’t chase after dreams of wealth. I think that if God ever wants me to be rich, he knows where to find my purse.

   When I began reading When Money Talks, Listen!, I was overjoyed to find that Rich Ezzo isn’t money hungry either. He, too, is hungry far more important than money.

Since I love this e-book so much, why wait a week to write the review? Simple. I wanted to see if the effect it had on me was a keeper. After reading the last word of the e-book, I totally agreed with the subtitle which promised to forever change the way we thought about money. I had so many thoughts running around my mind that I had to install(安裝) a stoplight to stop some while others made their way into the picture, then I yielded(讓路) them as a few ones arrived in town. I had a mental traffic jam, which only goes to show how slow the traffic usually is. 

   It has been a week and the effect is the same. I truly do look at money differently and have even done a few things differently this week. This is an e-book you’ll want to read, I promise. I often recommend books to my daughter, and this is one that I didn’t just “suggest”---I left it open at the bottom of the computer and told each one, “Read it, you’ll love it.”

   I would never point someone in a direction I wouldn’t go myself. I urge you to visit the author’s website, Myster Money, and to download the e-book. You won’t regret it.

According to the passage, a Get Rich Quick type of publication ______

A. is what the author really cares for

B. deals with how to make money

C. is also an e-book written by Rich Ezzo

D. is more popular than e-books

The author didn't write the review as soon as he finished reading the book   

because________.

　A. he was too excited to write anything

　B. he was not sure whether he did well

　C. he had to wait for Rich Ezzo's permission

　D. he wondered if the book would have long influence on him

By saying the underlined sentence in Paragraph 4, the author probably _________.

　A. shows that the book brought him many new thoughts

　B. shows how bad the traffic is in town

　C. describes the difficulty in understanding the book

　D. explains it's hard to change one's attitude to money

Which of the following is supported by the passage?

  A. The author had known Rich Ezzo before.

　B. The author hasn't dreamed of getting rich immediately.

　C. The author always prefers e-books to paper books.

D. The author likes Get Rich Quick-type of publications.

查看答案和解析>>

科目：高中英語 來源：2010━2011學(xué)年度四川省高三4月月考英語試卷 題型：閱讀理解

A week ago, I had the great pleasure of reading an e-book, When Money Talks, Listen! By Rich Ezzo. It took only about an hour to read.

   When I first received a copy, I thought it was a Get Rich Quick type of publication. Nothing is wrong with Get Rich Quick, but my mind just doesn’t chase after dreams of wealth. I think that if God ever wants me to be rich, he knows where to find my purse.

   When I began reading When Money Talks, Listen!, I was overjoyed to find that Rich Ezzo isn’t money hungry either. He, too, is hungry far more important than money.

Since I love this e-book so much, why wait a week to write the review? Simple. I wanted to see if the effect it had on me was a keeper. After reading the last word of the e-book, I totally agreed with the subtitle which promised to forever change the way we thought about money. I had so many thoughts running around my mind that I had to install(安裝) a stoplight to stop some while others made their way into the picture, then I yielded(讓路) them as a few ones arrived in town. I had a mental traffic jam, which only goes to show how slow the traffic usually is. 

   It has been a week and the effect is the same. I truly do look at money differently and have even done a few things differently this week. This is an e-book you’ll want to read, I promise. I often recommend books to my daughter, and this is one that I didn’t just “suggest”---I left it open at the bottom of the computer and told each one, “Read it, you’ll love it.”

   I would never point someone in a direction I wouldn’t go myself. I urge you to visit the author’s website, Myster Money, and to download the e-book. You won’t regret it.

1. According to the passage, a Get Rich Quick type of publication ______

A. is what the author really cares for

B. deals with how to make money

C. is also an e-book written by Rich Ezzo

D. is more popular than e-books

2.The author didn't write the review as soon as he finished reading the book   

because________.

　A. he was too excited to write anything

　B. he was not sure whether he did well

　C. he had to wait for Rich Ezzo's permission

　D. he wondered if the book would have long influence on him

3. By saying the underlined sentence in Paragraph 4, the author probably _________.

　A. shows that the book brought him many new thoughts

　B. shows how bad the traffic is in town

　C. describes the difficulty in understanding the book

　D. explains it's hard to change one's attitude to money

4. Which of the following is supported by the passage?

  A. The author had known Rich Ezzo before.

　B. The author hasn't dreamed of getting rich immediately.

　C. The author always prefers e-books to paper books.

D. The author likes Get Rich Quick-type of publications.

 

查看答案和解析>>

科目：高中英語 來源： 題型：閱讀理解

【2011·四川成都4月月考】

A

A week ago, I had the great pleasure of reading an e-book, When Money Talks, Listen! By Rich Ezzo. It took only about an hour to read.

   When I first received a copy, I thought it was a Get Rich Quick type of publication. Nothing is wrong with Get Rich Quick, but my mind just doesn’t chase after dreams of wealth. I think that if God ever wants me to be rich, he knows where to find my purse.

   When I began reading When Money Talks, Listen!, I was overjoyed to find that Rich Ezzo isn’t money hungry either. He, too, is hungry far more important than money.

Since I love this e-book so much, why wait a week to write the review? Simple. I wanted to see if the effect it had on me was a keeper. After reading the last word of the e-book, I totally agreed with the subtitle which promised to forever change the way we thought about money. I had so many thoughts running around my mind that I had to install(安裝) a stoplight to stop some while others made their way into the picture, then I yielded(讓路) them as a few ones arrived in town. I had a mental traffic jam, which only goes to show how slow the traffic usually is. 

   It has been a week and the effect is the same. I truly do look at money differently and have even done a few things differently this week. This is an e-book you’ll want to read, I promise. I often recommend books to my daughter, and this is one that I didn’t just “suggest”---I left it open at the bottom of the computer and told each one, “Read it, you’ll love it.”

   I would never point someone in a direction I wouldn’t go myself. I urge you to visit the author’s website, Myster Money, and to download the e-book. You won’t regret it.

41. According to the passage, a Get Rich Quick type of publication ______.

A. is what the author really cares for

B. deals with how to make money

C. is also an e-book written by Rich Ezzo

D. is more popular than e-books
42.The author didn't write the review as soon as he finished reading the book   

because________.
　A. he was too excited to write anything
　B. he was not sure whether he did well
　C. he had to wait for Rich Ezzo's permission
　D. he wondered if the book would have long influence on him

43. By saying the underlined sentence in Paragraph 4, the author probably _________.
　A. shows that the book brought him many new thoughts
　B. shows how bad the traffic is in town
　C. describes the difficulty in understanding the book
　D. explains it's hard to change one's attitude to money
44. Which of the following is supported by the passage?
  A. The author had known Rich Ezzo before.
　B. The author hasn't dreamed of getting rich immediately.
　C. The author always prefers e-books to paper books.
　D. The author likes Get Rich Quick-type of publications.

查看答案和解析>>

同步練習(xí)冊答案