首页
登录
职称英语
[img]2021m3x/ct_ve01004003m_eyyjsccloze_0048_202103[/img] When we see a b
[img]2021m3x/ct_ve01004003m_eyyjsccloze_0048_202103[/img] When we see a b
游客
2024-08-13
40
管理
问题
When we see a bright light moving quickly across the night sky, we often talk about seeing a "shooting star" or a "falling star".These moving lights are not in【C1】_________stars at all.They are small pieces of matter from outer space that burn up as they enter the Earth’s atmosphere.The correct name for these 【C2】ob_________is meteoroids.Any pieces that make it to the Earth’s surface without 【C3】_________(complete) burning up are known as meteorites.Meteor is actually the name given to the light we see when a meteoroid is burning up.
If a large enough meteorite hit the Earth, it could knock the planet out of its orbit, which would have catastrophic results.The path we follow around the sun would change and the Earth would become【C4】_________much hotter or much colder as a result.This change in【C5】tern_________would affect sea levels and the amount of water in rivers.There would either be huge floods or the oceans would dry up causing a【C6】_________(dry).All life on the Earth would probably become extinct.Although it is unlikely that the Earth will be struck by a meteorite large enough to do this kind of damage, there is【C7】evi_________of quite a large meteorite hitting the Earth in the past.In 1908, a large area of forest in Tunguska, Siberia, was destroyed by a meteorite that came apart just before it hit the ground.The moon, however, has about three billion craters, caused by meteorites crashing【C8】 _________its surface.It has so many craters because it does not have enough atmosphere in which the meteoroids can burn up.
Some of the meteorites that have reached the Earth’s surface have done considerable damage.Some scientists believe that it was a change of climate, caused by meteorites hitting the Earth, that resulted in the【C9】_________(extinct) of the dinosaurs and other large prehistoric animals.Scientists are especially interested in meteorites because they contain information about the solar system.It is【C10】 wi _________believed that most meteorites were produced billions of years ago by collisions between asteroids (small planets).This means that the physical and chemical structure of a meteorite can give scientists information about the early universe. [br] 【C7】
选项
答案
evidence
解析
转载请注明原文地址:http://tihaiku.com/zcyy/3718177.html
相关试题推荐
Whichcubecanbemadefromthegivennet?[img]2021m3x/ct_ve01004003m_eyyjsciq_
[img]2021m3x/ct_ve01004003m_eyyjsctrana_0077_202103[/img]Howdidmusicbegin?D
[img]2021m3x/ct_ve01004003m_eyyjsccloze_0048_202103[/img]Whenweseeab
[img]2021m3x/ct_ve01004003m_eyyjsccloze_0048_202103[/img]Whenweseeab
[img]2021m3x/ct_ve01004003m_eyyjsccloze_0048_202103[/img]Whenweseeab
[img]2021m3x/ct_ve01004003m_eyyjsccloze_0048_202103[/img]Whenweseeab
[img]2021m3x/ct_ve01004003m_eyyjsccloze_0048_202103[/img]Whenweseeab
[img]2021m3x/ct_ve01004002z2020j_eyyjsbcloze_0117_202012[/img]DavidHume
[img]2021m3x/ct_ve01004002z2020j_eyyjsbcloze_0117_202012[/img]DavidHume
[img]2021m3x/ct_ve01004002z2020j_eyyjsbcloze_0117_202012[/img]DavidHume
随机试题
From2007to2010,Americanhouseholdslost$11trillioninrealestate,sav
RiftswerealreadyopeningupintheG20asChinahitoutatBritainandthe
Positivemoodisnotuniversallydesirable:______(处于负面情绪中的人不容易有判断上的失误).peoplein
Ausefuldefinitionofanairpollutantisacompoundaddeddirectlyorindi
旋覆花入汤剂的用法是A.后下 B.包煎 C.烊化 D.先煎 E.冲服
根据相机抉择的财政政策,当经济处于萧条时,采取的财政政策不包括:A、举借公债扩大
施工中的材料根据()划分,可分为实体材料和非实体材料两类。A.材料消耗的性质
男性,65岁,肠梗阻术后1周,大便后突然出现胸痛,呼吸困难。体检:心率130次
以下填入“□”处的名称与图中标志对应正确的是: A.①绿色食品②保
铲运机按照卸土方式分为( )三类。A.强制式 B.半强制式 C.自行式
最新回复
(
0
)