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7.There was________time________Iraq was one of the strongest countries in the world.

A.a;when          B.a;that

C.the;that          D.the;when

解析:选A。本题考查定语从句。a time指“一段时期”,是先行词,关系副词用when。

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6.-My sister is very upset today.

-It’s your fault.You________the bad news to her yesterday.

A.should tell         B.should have told

C.shouldn’t have told     D.must tell

解析:选C。你昨天本来不应该把坏消息告诉她。

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5.The doctor told Jack’s mother that it would not take him long to ________from his illness.

A.suffer          B.separate

C.escape          D.recover

解析:选D。考查动词辨析。recover“痊愈,恢复”,常和from连用。句意:医生告诉Jack的妈妈不用多久他就会痊愈的。suffer from“遭受(痛苦、疾病、损失等)”;separate from“分离,分开”;escape from“从……中逃脱”。

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4.-You look unhappy.Why?

-I’m always________when I don’t get any mail.

A.confused         B.fearful

C.upset          D.doubtful

解析:选C。考查形容词辨析。upset此处用作形容词,意为“心烦意乱的”。答语意为:我接不到任何邮件时总是心烦意乱。confused“困惑的”;fearful“害怕的,可怕的”;doubtful“怀疑的,不肯定的”。

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3.She’s amazingly cheerful considering all she’s had to________.

A.get through        B.cut through

C.go through        D.see through

解析:选C。考查短语辨析。go through经历;经受。句意:经历了种种磨难,她还那么乐观,令人惊叹。get through“完成,通过,(给……)接通电话”;cut through“穿过,穿透”;see through“看穿,把……进行到底”。

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2.-So you didn’t say hello to her last night?

-Well,I stopped and smiled when I saw her,but she ________me andwalked on.

A.ignored         B.refused

C.denied          D.missed

解析:选A。考查动词辨析。ignore不理睬;忽视。句意:“昨晚你没有向她打招呼?”“唉,我看到她时便停下来朝她笑了笑,但她没有理我,一直往前走了。”refuse“拒绝”;deny“拒绝给予,否认”;miss“错过”。

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1.After________series of unsuccessful attempts,he has finally passed________driving test.

A.不填;the        B.a;the

C.the;a          D.不填;a

解析:选B。考查冠词。a series of是固定短语,意为“一系列;一连串”,所以第一空用不定冠词a;第二空用定冠词the,特指驾驶考试。句意:经过连续几次的失败,他最终通过了驾驶考试。

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22.已知函数时都取得极值。

 (1)求的值及的增区间;  (12分)

 (2)若对,不等式恒成立,求c的取值范围。

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21.已知曲线

 (1)求曲线在点处的切线方程;

 (2)求函数的单调区间。(12分)

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20.已知函数

 (1)求函数的极大值和极小值;

  (2)求函数在区间上的最大值和最小值。(12分)

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