have a telescope是什么意思

You can’t see things clearly through a telescope unless it is _____ correctly to your sight.

A．adjusted

B．examined

C．checked

D．tested

If you are ever planning to buy a telescope and want to get yourself involved in astronomy it is always a good idea to know a bit of the sky.Get acquainted with a few constellations(星座) so that it will be easier for you to spot the constellations when you are using your telescope.
It’s a good idea to buy a few magazines on astronomy to help you to get familiar with the constellations in the sky and also read a few reviews on the different types of telescopes in the market.This will help you gather all the information that is out there regarding telescopes and what people have to say about them.
It’s advisable to go in for a pair of binoculars(双筒望远镜) before you buy your first telescope so that you can get used to spotting constellations before your view of the sky is narrowed down.This will also help you know if you really want to get involved in astronomy.Many people buy a costly telescope and then discover that they’re not actually interested in astronomy.
Experience has no substitute，and there certainly is nothing better than using different telescopes before you buy one.This will help you to get the feel of all the types of telescopes and you will know which one is easier for you to use.A large aperture(光圈) refractor(折射) may give you an excellent image but you may not be able to keep a steady hand while using it resulting in a blurry image.
There are three types of telescopes that are available in the market.If you want a more elegant looking telescope you can always choose to buy a fine brass telescope.It’s good to become acquainted with each type before going for the plunge of a first telescope.The first type of telescope is the refractor telescope，which uses lenses to gather light to a focus at the eye piece.The use of lenses helps the telescope have a superior image.A refracting telescope is not as portable as the other two types of telescopes and so you will have to buy one with a small aperture.
The second type of telescope is the Reflector.Made by Sir Isaac Newton，this telescope functions by focusing the light back at the front of the tube，which is where the eyepiece sits，by using parabolic(抛物线的) mirrors and another smaller mirror to deflect the light.There is no added color in the image caused by refraction of light since this telescope does not use lenses.These are the cheapest of all telescopes and are more portable than refractors.
小题1:According to the text，a telescope is intended to be bought for ________.

A．getting experience

B．watching stars

C．studying the climate

D．learning about a bit of the sky

小题2:What can we learn from Paragraph 2?

A．One must know something about astronomy and telescopes.

B．One can’t buy a telescope without buying several astronomy magazines.

C．One should check the telescopes in the market and try to find a better one.

D．One must be familiar with new information of astronomy and space instruments.

小题3:Why does the author advise buying a pair of binoculars first?

A．The telescope is too expensive.

B．The binoculars are easier to use.

C．You may gain plenty of experience in astronomy.

D．Your view will be narrow by using a pair of binoculars.

小题4:What do we know about the refracting telescope?

A．It looks very elegant.

B．It refracts light by an eye piece.

C．It has clear images without any lenses.

D．It is not convenient to take along for its size.

When we look at the moon through a telescope(望远镜), we can see lines and circles(圆形物). People used to(过去常常) think that this was the moon’s face and that there was a man in the moon! This is not true. There is no man in the moon.
　　What do we know about the moon? First of all, the moon is much smaller than the earth. Days and nights on the moon are very long. One day on the moon is as long as two weeks on the earth. One night is also as long as two weeks on the earth. In the daytime the moon is very hot and at night is very cold.
小题1:On the moon ____________.

A．there is a man	B．there is a woman
C．there are a lot of people	D．there is no man

小题2:Now we know _____________________.
　　

A．some facts about the moon

B．nothing about the moon

C．little about the moon

D．few facts about the moon

小题3:Which of the following is true?

A．The moon is bigger than the earth.

B．The earth is much bigger than the moon.

C．The moon is as big as the earth.

D．The earth isn’t as big as the moon.

小题4: One day on the moon is as long as ______________.
　　

A．seven days on the earth

B．fourteen days on the earth.

C．240 hours on the earth

D．two years on the earth

小题5:The moon is very hot _____________.

A．all the time	B．during the night
C．in the daytime	D．at night and in the daytime

. You can’t see things clearly through a telescope unless it is ________ correctly to your sight.

A．treated

B．adopted

C．adjusted

D．reminded

"I’ve changed my mind. I wanted to have a telescope, but now I want my dad back." Lucien Lawence’s letter to Father Christmas written after his father had been knifed to death outside his school gate, must have touched every heart. Lucien went on to say that without his father he couldn’t see the stars in the sky. When those whom we love depart from us, we cannot see the stars for a while.
But Lucien, the stars are still there, and one day, when you are older and your tears have gone, you will see them again. And, in a strange way, I expect that you will find your father is there too, in your mind and in your heart. I find that my parents, long dead now, still figure in many of my dreams and that I think of them perhaps more than I ever did when they were alive. I still live to please them and I’m still surprised by their reactions. I remember that when I became a professor, I was so proud, or rather so pleased with myself, that I couldn’t wait to cable my parents. The reply was a long time in coming, but when it did, all mother said was, "I hope this means that now you will have more time for the children.” I haven’t forgotten. The values of my parents still live on.
It makes me pause and think about how I will live on in the hearts and minds of my children and of those for whom I care. Would I have been as ready as Philip Lawrence have been to face the aggressors (挑衅者),and to lay down my life for those in my care? How many people would want me back for Christmas? It’s a serious thought, one to give me pause.
I pray silently, sometimes, in the dead of night, that ancient cry of a poet "Deliver my soul from the sword, and my darling from the power of the dog." Yet I know the death comes to us all, and sometimes comes suddenly. We must therefore plan to live forever, but live as if we will die tomor­row. We live on, in the lives of those we loved, and therefore we ought to have a care for what they will remember and what they will treasure. If more parents knew this in their hearts to be true, there might be fewer knives on our streets today.
小题1:according to the whole text we can see that the first paragraph ________.

A．puts forward the subject of the text

B．shows the author’s pity on the kid

C．acts as an introduction to the discussion

D．makes a clear statement of the author’s views

小题2:In the second paragraph the author mainly wants to explain to us ________.

A．how much he misses his parents now

B．why his parents often appear in his dreams

C．when Lucien will get over all his sadness

D．how proud he was when he succeeded in life

小题3: What feeling did the author’s mother express in her reply?

A．Proud.

B．Happy.

C．Disappointed.

D．Worried.

小题4: In the author’s opinion, the value of a person’s life is ________.

A．to leave behind a precious memory to the people related

B．to have a high sense of duty to the whole society

C．to care what others will remember and treasure

D．to share happiness and sadness with his family

小题5: What does the writer mean by the sentence taken from an old poem?

A．Call on criminals and murderers to lay down their guns.

B．Advise parents stay with their children safely at home.

C．Spend every day meaningfully in memory of the death.

D．Try to keep violence and murder far away from society.

When Geoff Marcy was 14, his parents bought him a telescope. Every night, he would go onto the roof outside his window to see the wonders of the sky.
“What excited me most was whether there were planets in other solar systems where life might exist,” he says. “I decided to try to find planets orbiting other stars like our Sun.”
And he did. “My fellow researcher, Paul Butler, and I found our first planet in 1995,” Dr. Marcy says. “We worked for ten years without finding anything! But we stuck with it and our patience paid off.”
Since then, the two scientists have discovered 65 of the more than 100 planets found orbiting other stars. Dr. Marcy and Dr. Butler also spotted the first “family” of three planets. In June 2002 they announced another discovery: a Jupiter-like planet orbiting star 55Cancri.
At first, the two researchers found only planets that orbit close to stars. Recently, the scientists found planets farther out. The planet orbiting 55Cancri is a major breakthrough: it is the first sighting of a large gas planet about same distance from the star as Jupiter is from the Sun.
Why is this important ? Scientists think that life on Earth may exist because of two special features in our solar system. The first is Jupiter.
“Because it’s so big, Jupiter pulls comets and asteroids(小行星), or they all come and hit the Earth.” Dr. Marcy explains. “Without Jupiter , life on Earth would likely have been destroyed.”
A second feature is that Earth is a rocky planet where liquid water, which is necessary for life , can exist. Unlike gas planets, rocky planets like Earth have surfaces where water can gather in pools and seas, which may support life. A huge space exists between the Jupiter-like planet and two other planets that lie close to 55Cancri. Is there an Earth-like planet in the space, too small for us to notice? If so, says Dr. Marcy, “We would have two striking similarities to our solar system: a Jupiter-like planet and an Earth-like planet. And there may be life!”
小题1:What can we learn about Dr. Marcy from the passage?

A．He is fond of watching Jupiter.

B．He is from a scientist family.

C．He dislikes working with Paul Butler.

D．He is interested in finding life in outer space.

小题2:Which of the following is true of the recent discovery?

A．The planet is not as protective as Jupiter.

B．The planet is close to star 55Cancri.

C．The planet proves to be a gas planet.

D．The planet is as large as Jupiter.

小题3:Dr. Marcy and Dr. Butler began to find new planets in ____.

A．1995

B．1985

C．2002

D．1981

小题4:Dr. Marcy thinks that life may exist in the 55Cancri system because ____.

A．he has found the system similar to the solar system.

B．he has discovered an Earth-like planet there.

C．he has discovered a rocky planet there.

D．he has found signs of life in the system

小题5:“But we stuck with it”( in Paragraph 3) means ____.

A．they felt discouraged	B．they carried on with it
C．they failed in their attempt	D．they made some progress