英語四級(jí)考試完形填空模擬練習(xí)題（45）
2012年02月01日16:19 來源：新東方在線 【發(fā)表評(píng)論】
摘要：
英語四級(jí)考試完形填空模擬練習(xí)題
2011年12月四六級(jí)考試免費(fèi)測(cè)試平臺(tái)-為學(xué)員提供全真考場(chǎng)模擬演練機(jī)會(huì)！
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[2011年12月真題答案及點(diǎn)評(píng)：四級(jí) 六級(jí)]
答案│2011年12月四級(jí)作文真題及范文
答案│2011年12月英四級(jí)聽力原文完整版
答案│2011年12月四級(jí)快速閱讀解析
答案│2011年12月英語四級(jí)考試翻譯解析
Dalton wondered why the heavier and lighter gases in the atmosphere did not separate as oil and water do.He finally concluded that the constituent 1 must exist in the form of 2 particles or atoms and that these 3 be completely mixed together in the 4 .This threw a new light in 5 laws of definite proportions.It was 6 necessary to suppose that the atoms 7 combinesintossmall groups of uniform 8 and so form more complex substance; 9 the mystery of this law was 10 .Dalton suggested, for example, that carbon monoxide 11 formed bythe one with one 12 of atoms of carbon and oxygen, 13 carbon dioxide results from a single 14 of carbon uniting with two atoms 15 oxygen.Assuming this to be true, 16 the definite proportions of Prout's law (17 all chemical compounds the different constituents 18 enter in unvarying proportions) would naturally 19 the relative weights of the many 20 kinds of atoms.
1.A.gases B.pieces C.things D.gas
2.A.timely B.trimmed C.tiny D.topical
3.A.ought B.could C.will D.must
4.A.sky B.atmosphere C.oxygen D.environment
5.A.various B.many C.the D.those
6.A.only B.too C.that D.extremely
7.A.should B.were C.get D.could
8.A.construct B.structure C.piece D.feature
9.A.but B.also C.thus D.nevertheless
10.A.solved B.discovered C.broked D.told
11.A.must B.been C.were D.is
12.A.putting B.pairing C.placing D.preparing
13.A.while B.when C.therefore D.also
14.A.piece B.type C.atom D.measure
15.A.from B.in C.of D.for
16.A.then B.so C.by D.that
17.A.from B.in C.to D.for
18.A.are B.wouldn’t C.always D.never
19.A.describe B.unit C.mix D.reveal
20.A.different B.usual C.important D.chemical
2012年02月01日16:19 來源：新東方在線 【發(fā)表評(píng)論】
摘要：
英語四級(jí)考試完形填空模擬練習(xí)題
2011年12月四六級(jí)考試免費(fèi)測(cè)試平臺(tái)-為學(xué)員提供全真考場(chǎng)模擬演練機(jī)會(huì)！
重磅閱讀 2011年12月英語四級(jí)成績(jī)查詢2月21日公布
10元體驗(yàn)四六級(jí)VIP精品服務(wù)
[2011年12月真題答案及點(diǎn)評(píng)：四級(jí) 六級(jí)]
答案│2011年12月四級(jí)作文真題及范文
答案│2011年12月英四級(jí)聽力原文完整版
答案│2011年12月四級(jí)快速閱讀解析
答案│2011年12月英語四級(jí)考試翻譯解析
Dalton wondered why the heavier and lighter gases in the atmosphere did not separate as oil and water do.He finally concluded that the constituent 1 must exist in the form of 2 particles or atoms and that these 3 be completely mixed together in the 4 .This threw a new light in 5 laws of definite proportions.It was 6 necessary to suppose that the atoms 7 combinesintossmall groups of uniform 8 and so form more complex substance; 9 the mystery of this law was 10 .Dalton suggested, for example, that carbon monoxide 11 formed bythe one with one 12 of atoms of carbon and oxygen, 13 carbon dioxide results from a single 14 of carbon uniting with two atoms 15 oxygen.Assuming this to be true, 16 the definite proportions of Prout's law (17 all chemical compounds the different constituents 18 enter in unvarying proportions) would naturally 19 the relative weights of the many 20 kinds of atoms.
1.A.gases B.pieces C.things D.gas
2.A.timely B.trimmed C.tiny D.topical
3.A.ought B.could C.will D.must
4.A.sky B.atmosphere C.oxygen D.environment
5.A.various B.many C.the D.those
6.A.only B.too C.that D.extremely
7.A.should B.were C.get D.could
8.A.construct B.structure C.piece D.feature
9.A.but B.also C.thus D.nevertheless
10.A.solved B.discovered C.broked D.told
11.A.must B.been C.were D.is
12.A.putting B.pairing C.placing D.preparing
13.A.while B.when C.therefore D.also
14.A.piece B.type C.atom D.measure
15.A.from B.in C.of D.for
16.A.then B.so C.by D.that
17.A.from B.in C.to D.for
18.A.are B.wouldn’t C.always D.never
19.A.describe B.unit C.mix D.reveal
20.A.different B.usual C.important D.chemical