练习册

  • 练习册
  • 试题
    A. if B. that C. as D. while 【查看更多】

     

    题目列表(包括答案和解析)

    A fish that lives in America can live out. of water for months at a time, similar to how animals got used to land millions of years ago, a new study shows.
    The Mangrove Rivulus, a kind of little fish, lives in small pools of water. When their living place dries up, they live. on the land, said Scott Taylor, a researcher in Florida.                        
    The fish can grow as large as three inches. They group together and breathe air through their skin before they can find water again.
    The new scientific discovery came during a trip.
    "We were travelling for fun. and one day I kicked over a log (圆木) and the fish came out," Taylor told reporters by telephone. He said he would make his study on the fish known to the public in an American magazine early next year.
    In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.
    Some other fish can live out of water for a short period of time. The walking catfish found in Southeast Asia can stay on land for hours at a time, while lungfish(肺鱼) found in Australia, Africa and South America can live out of water, but only in a not active(活波的)way. But no other known fish can be out of water as long as the Mangrove Rivulus and keep active, according to Patricia Wright, a biologist at a Canadian University.
    More studies of the fish may tell how animals changed over time.
    "These animals live in conditions similar to those millions of years ago, when animals began to move from water onto land," Wright said.
    【小题1】The Mangrove Rivulus is a type of fish that_________.
    A．lives on land in Africa
    B．can stay alive for months out of water
    C．prefers living in dry places
    D．is the longest living fish on earth
    【小题2】Who will write a report on Mangrove Rivulus?
    A, Scott Taylor.                     B. Some reporters.
    C. Patricia Wright.                   D. Scientists from Europe.
    【小题3】According to the passage, lungfish can___________.
    A．breathe through its skinB．be found in Asia
    C．keep alive out of waterD．keep alive and walk on land
    【小题4】Which one of the sentences below is not true?
    A．The Mangrove Rivulus fish can live out of water as long as other animals if it has something to eat.
    B．Millions of years ago, animals began to live onto land from water.
    C．Lungfish found in Australia, Africa and South America can live out of water in a not active way.
    D．The walking catfish found in Southeast Asia can stay on land for hours at a time.
    【小题5】What can we say about the discovery of Mangrove Rivulus?
    A．ft was made by Scott Taylor, a researcher in New york.
    B．It was helped by an American magazine.
    C．It was helped by Patricia Wright.
    D．It was made by a researcher while travelling.

    查看答案和解析>>

    If you want to become a better reader, what should you know about speed of reading?
    Some people read very rapidly(很快地), while others read very slowly. But which one is
    better?
    The rapid reader may be a good reader when he reads a storybook for fun. But he may not be
    able to slow down enough to read directions(说明) carefully. He may read so rapidly that he does
    not take time to understand fully the ideas and information which are important to remember.
    The slow reader may be a good reader when he reads directions for making something. But he
    may spend too much time in reading a simple story which is meant to be enjoyed but is not
    important enough to be remembered.
    So, you see, either a rapid reader or a slow reader is not really a good one. If you wish to
    become a better reader, here are four important things to remember about speed of reading.
    1. Knowing why you are reading will often help you to know whether to read rapidly or
    slowly.
    2. Some things should be read slowly throughout. Examples are directions for making or doing
    something, science and history books, and Maths problems. You must read such things slowly or
    remember each important step and understand each important idea.
    3. Some things should be read rapidly throughout. Examples are simple stories for enjoyment,
    letters from friends and bits of news from hometown papers.
    4. In some of your reading, you must change your speed from fast to slow and slow to fast, as
    you go along. You will need to read certain(某些) pages rapidly and then slow down and do more
    careful reading when you come to important ideas.
    【小题1】 What should be read rapidly?
    A．Directions for making something.
    B．Maths problems.
    C．Science and history books.
    D．Storybooks, newspapers, personal letters, etc.
    【小题2】What is the important thing you should keep in mind about speed of reading?
    A．To read as fast as you can.B．To fit your reading speed to your needs.
    C．To read as slowly as possible.D．To keep your reading at a certain speed.
    【小题3】Which title best gives the main idea of the passage?
    A．Something about Careful ReadingB．Be a Rapid Reader.
    C．How to Read?D．How to Be a Slow Reader?

    查看答案和解析>>


    If you want to become a better reader, what should you know about speed of reading?
    Some people read very rapidly(很快地), while others read very slowly. But which one is better?
    The rapid reader may be a good reader when he reads a storybook for fun. But he may not be able to slow down enough to read directions(说明) carefully. He may read so rapidly that he does not take time to understand fully the ideas and information which are important to remember.
    The slow reader may be a good reader when he reads directions for making something. But he may spend too much time in reading a simple story which is meant to be enjoyed but is not important enough to be remembered.
    So, you see, either a rapid reader or a slow reader is not really a good one. If you wish to become a better reader, here are four important things to remember about speed of reading.
    1. Knowing why you are reading will often help you to know whether to read rapidly or slowly.
    2. Some things should be read slowly throughout. Examples are directions for making or doing something, science and history books, and Maths problems. You must read such things slowly or remember each important step and understand each important idea.
    3. Some things should be read rapidly throughout. Examples are simple stories for enjoyment, letters from friends and bits of news from hometown papers.
    4. In some of your reading, you must change your speed from fast to slow and slow to fast, as you go along. You will need to read certain(某些) pages rapidly and then slow down and do more careful reading when you come to important ideas.
    【小题1】What should be read rapidly?
    A．Directions for making something.
    B．Maths problems.
    C．Science and history books.
    D．Storybooks, newspapers, personal letters, etc.
    【小题2】What is the important thing you should keep in mind about speed of reading?
    A．To read as fast as you can.
    B．To fit your reading speed to your needs.
    C．To read as slowly as possible.
    D．To keep your reading at a certain speed.
    【小题3】Which title best gives the main idea of the passage?
    A．Something about Careful Reading
    B．Be a Rapid Reader.
    C．How to Read?
    D．How to Be a Slow Reader?

    查看答案和解析>>



    As a kid, everyone wants to learn how to ride a bike. Here is some advice to_1_ you be on your way.
    The bike. Start with a bicycle and it’s small enough for your feet to touch the _2_. If you lose your balance, you can put your feet to the ground _3_.
    Training grounds. You need a big place for the first part of your practice. Be sure to wear something to keep _4_.
    Keeping your balance. It’s very important to learn how to keep your balance. You may practice this easily. _5_ your bike to the higher place. Sit on the bike seat  _6_both feet on the ground. Lift both feet a few inches to let the bike roll down. If you start to fall, just put your feet on the ground. Try practicing this several times _7_ you get your balance.
    Pedaling(踩动). After you get your balance, it’s time to _8_ learning how to pedal. Start by sitting on the bike seat. With your left foot on the ground and your right foot on the pedal, then push _9_ on the pedal. Push off with your left foot. Keep on practicing until you learn it well.
    Braking(刹车). Catch them lightly at first, slowly increasing the pressure to get to a full _10_. Remember that braking hard while going fast can cause you fall over.

    【小题1】
    A．holdB．help C．feelD．wish
    【小题2】
    A．treeB．floorC．groundD．bike
    【小题3】
    A．at firstB．at lastC．on time D．at once
    【小题4】
    A．dangerous B．safeC．warm D．cool
    【小题5】
    A．TakeB．Bring C．Give D．Ask
    【小题6】
    A．under B．over C．with D．after
    【小题7】
    A．becauseB．thoughC．until D．after
    【小题8】
    A．startB．keep C．enjoyD．finish
    【小题9】
    A．upB．down C．in D．on
    【小题10】
    A．look B．stopC．beginning D．turn

    查看答案和解析>>

    A fish that lives in America can live out. of water for months at a time, similar to how animals got used to land millions of years ago, a new study shows.
    The Mangrove Rivulus, a kind of little fish, lives in small pools of water. When their living place dries up, they live. on the land, said Scott Taylor, a researcher in Florida.                        
    The fish can grow as large as three inches. They group together and breathe air through their skin before they can find water again.
    The new scientific discovery came during a trip.
    "We were travelling for fun. and one day I kicked over a log (圆木) and the fish came out," Taylor told reporters by telephone. He said he would make his study on the fish known to the public in an American magazine early next year.
    In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.
    Some other fish can live out of water for a short period of time. The walking catfish found in Southeast Asia can stay on land for hours at a time, while lungfish(肺鱼) found in Australia, Africa and South America can live out of water, but only in a not active(活波的)way. But no other known fish can be out of water as long as the Mangrove Rivulus and keep active, according to Patricia Wright, a biologist at a Canadian University.
    More studies of the fish may tell how animals changed over time.
    "These animals live in conditions similar to those millions of years ago, when animals began to move from water onto land," Wright said.
    【小题1】The Mangrove Rivulus is a type of fish that_________.

    A．lives on land in Africa
    B．can stay alive for months out of water
    C．prefers living in dry places
    D．is the longest living fish on earth
    【小题2】Who will write a report on Mangrove Rivulus?
    A, Scott Taylor.                     B. Some reporters.
    C. Patricia Wright.                   D. Scientists from Europe.
    【小题3】According to the passage, lungfish can___________.
    A．breathe through its skinB．be found in Asia
    C．keep alive out of waterD．keep alive and walk on land
    【小题4】Which one of the sentences below is not true?
    A．The Mangrove Rivulus fish can live out of water as long as other animals if it has something to eat.
    B．Millions of years ago, animals began to live onto land from water.
    C．Lungfish found in Australia, Africa and South America can live out of water in a not active way.
    D．The walking catfish found in Southeast Asia can stay on land for hours at a time.
    【小题5】What can we say about the discovery of Mangrove Rivulus?
    A．ft was made by Scott Taylor, a researcher in New york.
    B．It was helped by an American magazine.
    C．It was helped by Patricia Wright.
    D．It was made by a researcher while travelling.

    查看答案和解析>>


    同步练习册答案