(   ) 1.——Do you believe there are aliens?

      ——I'm afraid not. Maybe they      in outer space in the future.

A. will find    B. will be found

C. will invent    D. will be invented

未来，人类可能会移居到火星上。请查阅资料并根据你对火星的了解，用五句话描述一下人类未来在火星上的生活场景。

佳作展示：

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2.       

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4.       

5.     

 Today the technologies are developing rapidly，but there are many unknown things waiting for us to explore in the world and we still have many strange questions. Among all of these puzzles, maybe we are most interested in UFOs.

  It's known that UFO is short for the Unknown Flying Object. For a period of time， when we mentioned UFO,we always thought of aliens, the aliens' high-technology, outer space culture and so on. There are many witnesses in the world. They say for certain that they have seen some uncommon things in the sky with their eyes. Some of them can even prove(证明) their experiences with videos or pictures. But in the end people find most of the events are considered as natural phenomena(现象)or man-made objects. They just mistake a plane, a rocket, a balloon or even a plastic bag for UFO.

  So far we haven't found real proofs (证据) to prove there are aliens and UFOs in space. But I believe，with the development of science， we will get more and more knowledge about our real world and we will have the ability to realize the essence(本质)of the world.

根据短文内容，选择最佳答案。

(   ) 1. When people talk about the unknown things, which interests them most?

A. UFOs. B. Aliens.

C. Aliens' technology. D. Outer space. 

(  ) 2. How do some people prove they have seen UFOs?

A.    By words or photos.

B.    By articles or videos.

C.    By videos or photos.

D.    By words or articles.

(   ) 3.What's the meaning of the underlined word "witnesses"in Chinese?
A.爱好者        B.目击者

C.观赏者        D.预言家

(   ) 4.Which of the following is TRUE according to the passage?

A.    UFO is different from the Unknown Flying Object.

B.    Many people aren't interested in UFOs.

C.    Some people have proved that there are aliens and UFOs in space.

D.    Some people consider some man-made objects as UFOs by mistake.

(  ) 5. The passage is about      

A.   the aliens

B.   the UFOs

C.   the natural phenomena

D.   the man-made objects

 Someday you may go to the moon. A rocket will 1 you into space. The rocket flies a long way to a space station. You will stay there 2 a short time. Then a big spaceship will take you to the moon.

About three days  3，the ship slowly goes down and gets to the moon. You are now on the moon,4 you can't get off your moon-ship. You must put on a spacesuit， because the moon is very 5 in the day and very cold at night. If you don't wear a spacesuit，you 6jump out of the moon-ship and begin to "walk". The moon is much  7 than the earth. The things on the moon are lighter than8 on the earth and you can jump much higher on the moon.

 The moon moves slowly,so one day on the moon is as9as two weeks on the earth. There's no rain on the moon，so everything on the moon is10 The earth is a better place to live on,but scientists are trying to make the best of the moon.

(   ) 1. A. take    B. have

      C. meet    D. give

(   ) 2. A. with     B.for

      C. in    D. of

(  ) 3. A. ago    B. in

         C. later    D. before

(   ) 4. A. although    B. so

         C. because    D. but

(   ) 5. A. round    B. hot

       C. good    D. bad

(   ) 6. A. can    B. can't

         C. will    D. must

(   ) 7. A. smaller    B. bigger

       C. taller    D. shorter

(  ) 8. A. that    B. this

      C. those    D. some

(   ) 9. A. large    B. bright

        C. long    D. old

(   ) 10. A. wet    B. hard

       C.sunny    D. dry

(   ) 5.—Do you believe there are aliens?

     —No，because no life in space       any information      us so far.

A.   send;to

B.   has sent;to

C.   launch;to

D.   has launched;to

(   ) 4. There      an old bridge in our hometown for 500 years. People all

care for it carefully.

A. is    B. has been

C. was    D. had been

(   ) 3. Study hard,              you'll fall behind

others.

A. before    B. after

C. or    D. and

(   ) 2.—Your success was far      what we thought. Congratulations！ 

      ——Thanks！

A. beyond    B. from

C. besides    D, in

(   ) 1.________ the development of science，the living things may be found on

other planets one day.
A. In    B. On

C. By    D. with

 Our sun is a star. Like all stars,it is a mass of(~"大团)very hot gases. The sun，s energy doesn't come from burning fuels(燃料).

The sun's energy comes from its nuclear fusion(核聚变）.How big is the sun? Its diameter，the distance across its center, is quiet huge. That's more than one hundred times the diameter of

Earth. The sun's volume is more than a million times the volume of Earth. Another way to say this is that the sun could hold one million Earths inside(在.. 内)it.

   The sun has different layers(层)of gases. Each layer mixes into the next，like the layers of Earth's atmosphere(大气).Most of the sun's mass is in its center. It is also very hot. Almost all fusion takes place in the center.

   The sun creates energy in the form of heat and light. Even though the sun is a ball of gases, it is made up of several layers. The main layers are the center. There are also other layers. The sun produces huge energy. Its energy mainly comes from its center. The sun is the source of most of the energy on Earth. Without the sun,there will be no living things on earth,including human beings.

根据短文内容，选择最佳答案。

(   ) 1. What are the gases of the sun like?

A. Burning. B. Very hot.

C. Very bright. D. All of the above.
(   ) 2. The sun's energy comes from      

A. nuclear fusion    B. burning fuels

C. X-rays D. layers of gases

(   ) 3. The diameter of the earth is about 6300

kilometers. How about that of the sun?

A.   About 6300 kilometers.

B.   About 63000 kilometers.

C.   About 630000 kilometers.

D.   About 6300000 kilometers.

(   ) 4. What's the meaning of the underlined word " volume " according to the passage?

A.形状         B.广度

C.面积         D.体积

(   ) 5. What's the last two paragraphs about?

A.   The sun has many layers.

B.   Where the sun energy is from.

C.   How the sun energy is made.

D.   The sun is the source of the energy on Earth.