題目列表(包括答案和解析)
Many scientists say that the world is getting hotter and hotter．If they are right , the ice at the North and South Pole will melt eventually．If this happens, the sea will 1 and may cover most 2 all of Singapore．This will force everybody to move to a 3 country．
We know that the sun 4 the earth．The heat from the sun hits the 5 , and some of 6 goes back into the sky．However, factories and cars 7 a lot of carbon dioxide（二氧化碳）．When the gas rises into the sky, the heat from the sun can come 8 them but the heat from the ground cannot．It 9 near us in the sky and makes the 10 hotter and hotter every year．
Scientists call this the “greenhouse effect” because a greenhouse is a small glass 11 which is hot inside．It is used for 12 plants in cool countries．Many countries are 13 about the greenhouse effect．They are trying to stop factories and cars from sending 14 gases into the sky．Scientists are not sure when the world will get much hotter．Some people say that the greenhouse effect has 15 already and has begun to affect the world’s weather．
1．A．rise B．fall C．change D．disappear
2．A．a(chǎn)nd B．or C．but D．till
3．A．better B．larger C．safer D．farther
4．A．shines B．circles C．covers D．heats
5．A．ground B．sky C．mountain D．forest
6．A．them B．it C．those D．such
7．A．make B．spread C．produce D．from
8．A．through B．over C．into D．toward
8．A．hides B．continues C．follows D．stays
10．A．cloud B．a(chǎn)ir C．season D．temperature
11．A．building B．flat C．tool D．machine
12．A．putting B．storing C．cutting D．growing
13．A．excited B．disappointed C．worried D．pleased
14．A．dangerous B．harmful C．heavy D．useful
15．A．meant B．improved C．started D．stopped
湖北省互聯(lián)網(wǎng)違法和不良信息舉報平臺 | 網(wǎng)上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權(quán)舉報專區(qū)
違法和不良信息舉報電話：027-86699610 舉報郵箱：58377363@163.com