-英語相同項(xiàng)單選集考試卷模擬考試題_3

1、姓名：_ 班級：_ 學(xué)號(hào)：_-密-封 -線- *英語相同項(xiàng)單選集考試卷模擬考試題考試時(shí)間：120分鐘 考試總分：100分題號(hào)一二三四五總分分?jǐn)?shù)遵守考場紀(jì)律，維護(hù)知識(shí)尊嚴(yán)，杜絕違紀(jì)行為，確?？荚嚱Y(jié)果公正。1、how many things can you see in the night sky a lot! on a clear night you might see the moon, some planets, and thousands of sparkling stars. you can see even more with a telescope.but scientists be

2、lieve there are some things in the sky that we will never see. we wont see them with the biggest telescope in the world, on the clearest night of the year. thats because theyre invisible. theyre themysteriousdead stars called black holes.as a stars gases burn, they give off light and heat. but when

3、the gas runs out, the star stops burning and begins to die.as the star cools, the outer layers of the star pull in toward the center. the star squashes (擠壓) into a smaller and smaller ball. if the star was very small, the star ends up as a cold, dark ball called a black dwarf. if the star was very b

4、ig, it keeps squashing inward until its packed together tighter than anything in the universe.imagine if the earth were crushed until it was the size of a tiny marble. thats how tightly this dead star, a black hole, is packed. what pulls the star in toward its center with such power its the same for

5、ce that pulls you down when you jumpthe force called gravity. a black hole is so tightly packed that its gravity sucks in everythingeven light. the light from a black hole can never come back to your eyes. thats why you see nothing but blackness.so remember: scattered in the silent darkness are blac

6、k holesthe great mystery of space.according to the article, what causes a star to die（ ）a.as its gases run out, it cools down.b.it collides with other stars.c.it can only live for about a million years.d.as it gets hotter and hotter, it explodes.2、how many things can you see in the night sky a lot!

7、on a clear night you might see the moon, some planets, and thousands of sparkling stars. you can see even more with a telescope.but scientists believe there are some things in the sky that we will never see. we wont see them with the biggest telescope in the world, on the clearest night of the year.

8、 thats because theyre invisible. theyre themysteriousdead stars called black holes.as a stars gases burn, they give off light and heat. but when the gas runs out, the star stops burning and begins to die.as the star cools, the outer layers of the star pull in toward the center. the star squashes (擠壓

9、) into a smaller and smaller ball. if the star was very small, the star ends up as a cold, dark ball called a black dwarf. if the star was very big, it keeps squashing inward until its packed together tighter than anything in the universe.imagine if the earth were crushed until it was the size of a

10、tiny marble. thats how tightly this dead star, a black hole, is packed. what pulls the star in toward its center with such power its the same force that pulls you down when you jumpthe force called gravity. a black hole is so tightly packed that its gravity sucks in everythingeven light. the light f

11、rom a black hole can never come back to your eyes. thats why you see nothing but blackness.so remember: scattered in the silent darkness are black holesthe great mystery of space.which word has the same meaning with the word “mysterious”（ ）a.ordinaryb.brightc.stranged.common3、how many things can you

12、 see in the night sky a lot! on a clear night you might see the moon, some planets, and thousands of sparkling stars. you can see even more with a telescope.but scientists believe there are some things in the sky that we will never see. we wont see them with the biggest telescope in the world, on th

13、e clearest night of the year. thats because theyre invisible. theyre themysteriousdead stars called black holes.as a stars gases burn, they give off light and heat. but when the gas runs out, the star stops burning and begins to die.as the star cools, the outer layers of the star pull in toward the

14、center. the star squashes (擠壓) into a smaller and smaller ball. if the star was very small, the star ends up as a cold, dark ball called a black dwarf. if the star was very big, it keeps squashing inward until its packed together tighter than anything in the universe.imagine if the earth were crushe

15、d until it was the size of a tiny marble. thats how tightly this dead star, a black hole, is packed. what pulls the star in toward its center with such power its the same force that pulls you down when you jumpthe force called gravity. a black hole is so tightly packed that its gravity sucks in ever

16、ythingeven light. the light from a black hole can never come back to your eyes. thats why you see nothing but blackness.so remember: scattered in the silent darkness are black holesthe great mystery of space.what happens after a star dies（ ）a.it becomes invisible.b.it falls to earth.c.it burns up al

17、l of its gases.d.it becomes brighter and easier to see.4、how many things can you see in the night sky a lot! on a clear night you might see the moon, some planets, and thousands of sparkling stars. you can see even more with a telescope.but scientists believe there are some things in the sky that we

18、 will never see. we wont see them with the biggest telescope in the world, on the clearest night of the year. thats because theyre invisible. theyre themysteriousdead stars called black holes.as a stars gases burn, they give off light and heat. but when the gas runs out, the star stops burning and b

19、egins to die.as the star cools, the outer layers of the star pull in toward the center. the star squashes (擠壓) into a smaller and smaller ball. if the star was very small, the star ends up as a cold, dark ball called a black dwarf. if the star was very big, it keeps squashing inward until its packed together tighter than anything in the universe.imagine if the earth were crushed until it was the size of a tiny marble. thats how tightly this dead star, a black hole, is packed. what pulls the star in toward its center with such power its the same force tha