學士學位英語完形填空基礎(chǔ)檢測題一

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學士學位英語完形填空基礎(chǔ)檢測題一

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 by the 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

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1.【答案】A

【解析】根據(jù)上文中的heavier and lighter gases可以確定，本空中應填入“組成的氣體”，即constituent gases.

2.【答案】C

【解析】根據(jù)句子意思判斷，句中的詞意為微粒的意思，選項C.tiny合乎題意。

3.【答案】D

【解析】情態(tài)動詞must在這里是“必定、必須”的意思。

4.【答案】B

【解析】sky意為“天空”，atmosphere意為“大氣”，oxygen意為“氧氣”，environment意為“環(huán)境”，只有B項正確。

5.【答案】C

【解析】這幫助解釋了大氣組成氣體的比例確定原理。因為是特指這一原理，用定冠詞the.

6.【答案】A

【解析】only necessary的意思是“僅僅是必要”。故A正確。

7.【答案】D

【解析】根據(jù)句子意思判斷，could是“能夠”的意思。

8.【答案】B

【解析】根據(jù)句子意思判斷，這里需要“結(jié)構(gòu)”這個詞，而B合乎題意。

9.【答案】C

【解析】but，nevertheless表示轉(zhuǎn)折意為“但是”，“然而”;thus意為“因此”，如There has been no rain.Thus, the crops are likely to suffer.一直沒有下雨，因此莊稼可能會受害。這里與上文有因果關(guān)系，故應選C.

10.【答案】A

【解析】solve相當于find a solution or an answer to，意為“解決”、“解開”，如：solve a problem (a puzzle, a mystery);discover相當于find something existing but not known before，意為“發(fā)現(xiàn)”，如： discover a place (a fact, the truth)。因此應選A.

11.【答案】D

【解析】因為是表一般規(guī)律，又是單數(shù)，所以用is這個詞。

12.【答案】B

【解析】Pair這里是“匹配，配成雙”的意思。

13.【答案】A

【解析】while表示對比。如：Some substances are soluble, while others are not.一些物質(zhì)是可溶的，而另一些物質(zhì)是不可溶的。

14.【答案】C

【解析】根據(jù)句子意思判斷，atom正確。

15.【答案】C

【解析】of表示“含量，分量”。

16.【答案】A

【解析】then的意思是next，after that.

17.【答案】D

【解析】for的意思是“對于，就……而言”。

18.【答案】C

【解析】根據(jù)句子意思判斷。

19.【答案】B

【解析】describe意為“描述”;unite意為“結(jié)合，合并”;mix意為“(不同的東西)混合在一起”，如：mix flour and water;reveal意為“揭露，揭示”。

20.【答案】A

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