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A.at
B.for
C.over
D.after
4)
A./
B.some
C.any
D.the
5)
A.if
B.until
C.before
D.so that
6)
A.us
B.ourselves
C.all
D.someone
7)
A.ordinary
B.common
C.everyday
D.extraordinary
8)
A.few
B.a few
C.little
D.a little
9)
A.in
B.from
C.at
D.on
10)
A.although
B.when
C.in case
D.so that
7.將下面的短語(yǔ)譯成漢語(yǔ)
Nuclear power is obtained from the energy which can be released from the uncleus of an atom.Until the twentieth century man used water,wood and the fossil fuels (coal,oil and gas)as sources of power,During the first quarter of the twentieth century physicists investigated the structure of the atom.
In 1919 Rutherford split the atom artificially.Thirteen years later the neutron was discovered.In 1939 Hahn and Strass-man investigated the action of neutrons on uranium 235.They found that it was split into two equal pieces.This process is known as fission.It released in fossion produce fissions in other atoms.This is known as a chain reaction.On 2nd December 1942 EnricoFermi and his colleagues produced the first controlled nuclear chain reaciton.
Since then atomic energy has been used in war and peace.In 1951 electricity was first produced by using the heat reom a nuclear reactor.More and more countries are building nuclear power stations to produce electricity.
8.將下面的句子譯成英語(yǔ)
1)研究結(jié)果表明,少數(shù)實(shí)驗(yàn)可以放棄使用動(dòng)物。
2)她鼓不起勇氣來(lái)談此事。
3)我更喜歡鄉(xiāng)村,因?yàn)樗邮茏匀弧?/P>
4)對(duì)于她對(duì)法律的無(wú)知,他持批評(píng)態(tài)度。
5)不同的人對(duì)同樣的問(wèn)題有不同的看法,所以解決的辦法也不同。