阅读理解 What does an astronaut (宇航员) eat in space? This is a question thatwi
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will puzzle many, as people rarely think of that. In the early space-travel
years, astronauts ate dehydrated (脱水的) foods that were eaten through
straws(吸管). In today"s space-age, the food that they eat is totally different.
They eat food in the same way as people do on Earth.
Astronauts are able to prepare and eat a variety (多样化)of foods in
space. Some can be eaten in their natural form, like fruits; while some need to add water, like noodles. However, there are no refrigerators, so the food has
to be prepared and eaten without being Stored for a long time. When the
astronauts are hungry, they simply eat the food by opening the food ackages and with a fork, knife, and spoon.
Just like people on Earth, astronauts also eat three meals a day which
include breakfast, lunch and dinner. Sometimes they also eat snacks. The US
space agency NASA has found out that an astronaut"s diet reduces(减少) by
about 70% on a space mission, though he has a wide range of foods to
choose from like nuts, chicken, beef, seafood, and candies. Drinks in the
spaceship include coffee, tea, juices, and lemonade.
Astronauts can also request a particular food that they would like to have in space. Scientists are always experimenting and trying out different space
foods that can be offered to astronauts when on space missions.
B．drank milk through Straws
C．ate dehydrated food
D．ate with a fork; knife; and spoon
B．can"t eat anything in a natural way
C．can use the refrigerators to store the food
D．can eat many kinds of food like on Earth.
B．an astronaut eat less than on Earth
C．an astronaut eat as much as on Earth
D．an astronaut doesn"t have to eat food at all.
B．drink some beer
C．smoke
D．eat snacks
that can be offered to astronauts ________.
B．when they are sick
C．when on space missions
D．when they relax themselves
答案
举一反三
Now some people are using a kind of telephone called the picture phone or
vision phone.With it，two people who are talking can see each other.Picture phones can be used when you have something to show to the person you are calling.They may have other uses(用途)in the future.One day you may be able to ring up a library and ask to see a book.Then you"ll be able to read the book right over your picture phone.Or you may be able to go shopping through your picture phone，If you see something in the newspaper that you want to buy，you"ll go to your phone and call the shop.People at the shop will show you the thing you arc interested in right over the phone.You"ll be able to shop all over city and never even leave your room!
B.in some places in the world
C.only in big cities
D.almost anywhere on earth
B.any phone
C.the use
D.the change
B.do shopping
C.play games
D.have glasses
B.impossible
C.bad
D.badly
B.With the picture phone，two people can"t see each other.
C.phones are very useful.
D.Today people can use phones to talk with each other almost everywhere on each.
Tell the truth.Have you ever copied someone else"s work in an exam? Don"t do it again!That"s not something an honest(诚实的)student should do.If you have played computer games for two hours in your room don"t tell your parents you have done homework.
Do more at school.Good students love animals and care for other people.April is Bird Loving Month in China.Is your school doing anything to celebrate(庆祝)? You should join! Be friendly to the people you are with,too.Try to think of others,not only yourself.
Be open to new ideas.Have you ever thought that people could live on the moon? Maybe you"ll discover(发现)Earth Ⅱsomeday.Everyone"s ideas are important.
Use the Internet carefully.The Internet can be very useful for your studies.But s
omething on the Internet aren"t for kids,so try to look at web pages(网页)that are good for you.You can use the web for fun or homework.B.In March.
C.In June.
D.In May.
B.Everyone"s ideas are important.
C.Try to think of others,not only yourself.
D.Maybe discover Earth Ⅱ someday.
B.use the Internet
C.dye your hair
D.love animals
B.Try to look at web pages that are good for kids.
C.Talk with people we don"t know on computer.
D.Watch unhealthy(不健康的)movies on computer.
B.do more at school
C.tell the truth
D.use the Internet
interested in sports? No, they often say they have other more important things to do.
What are these important things? Exams! They have to spend much time on all kinds of exams at
school. So many of them almost become bookworms (书呆子). Books stop them from going out for
sports. Because of the pressure from their parents and teachers, the students have to work harder and
spend most of their time on books. As for the students, they want to get good results in order to improve
their studies. So it is necessary for them to give all of their free time to their studies and stop their school
sports.
In fact, education (教育) can"t go without (没有) physical (身体的) exercises, because a quick
mind hardly goes along with a weak body. If you don"t have a strong body, you can never get anything or
any great success (成功) in your life.
B. exercise
C. education
D. exams
B. good idea
C. nervous feeling
D. deep love
B. a strong body
C. a weak body
D. enough time
B. not have sports
C. have sports after studying
D. spend all their free time studying
B. Physical exercises are very important for education.
C. A person can"t become successful with a weak body
D. The students stop their school sports because of studies and exams.
The solar system is a small part of our galaxy．
The stars w
e see at night are the suns in other solar systems．There are |more than 200 billion stars in our galaxy,called the Milky Way,and our Sun is only one of them．
But scientists have discovered many other galaxies in the universe．They are a long way away and their light has travelled for many years to reach us．It is hard to understand how large the universe is．
Scientists have sent lots of spacecraft to look at other planets in our solar system,and some spacecraft have gong beyond the solar system．However,no one has discovered any life in space yet．
But why has no one from other planets sent us a message?Have they tried
to send information to us?With so many stars in the universe,are we alone,or is there life out there in space?We don"t know．．．yet．
( )1．The Sun is one of the Earth planets．
( )2．There is more than one galaxy in our solar system．
( )3．There are more than 200 billion stars in the Milky Way．
( )4．Scientists have found life on other planets．
( )5．They"ve received no messages from space．
something to eat before getting to work. Always do your homework before you get too tired. Don"t wait until very late
in tile evening, or your work will seem much harder than it really is.
If you have more than an hour"s work, give yourself a break after an hour. On the other hand, don"t break it up so
much that you can"t get anything done. You should be able to work at least a half at a time without stopping.
Don"t put it off until the last minute.If you put off doing your homework, you will have it on your mind, and you
won"t enjoy your free time so much. If you put it off until the en
d of the week or until right before a test, you willhave too much catching-up to do. A little bit each night, enough to
keep up with what is happening each day atschool, will take the fear out of the test and keep you on top of it. Do your homework at the same time every evening.
This will help you make it a habit. It will make it easier to do, and it will make your free time more enjoyable, as well.