单项选择题
1、 George couldn’t remember when he first met Mr. Anderson, but he was sure it was Sunday because everybody was at church.
A．/; the
B．the; /
C．a; /
D．/; a

2、---Good morning. I've got an appointment with Miss Smith in the Personnel Department.
--Ah, good morning. You  　　 be Mrs. Peters.
A．might
B．must
C．would
D．can


3、 已知a=(3，x)，b=(7，12)，并且a⊥b，则x=    (    )
A．-7/4
B．7/4
C．-7/3
D．7/3

4、 当地球运行到远日点时，我国出现的地理现象是（　　）
A．东部地区盛行偏北风
B．雨带推移到华北、东北地区
C．长江中下游地区刚进入梅雨期
D．黄河流域进入枯水期


5、 一艘船只将从新加坡港起程，选择捷径至地中海沿岸，它将经过的海上咽喉要道有：
①马六甲海峡②霍尔木兹海峡③苏伊士运河④直布罗陀海峡
A．①②
B．①④
C．②④
D．①③


6、 等差数列{an}的公差d<0，且n2•n4=12，a2+a4=8，则数列{an}的通项公式是(  )
A．an=2n-2(n∈N*)
B．an=2n+4(n∈N*)
C．an=-2n+12(n∈N*)
D．an=-2n+10(n∈N*)


7、 阅读下列短文，回答题。
Two farmers were on their way home one evening after a hard day's work. Both were tired. They happened to look up at the sky and saw a black cloud overhead.
"Ah!" said one farmer,"tomorrow we shall have rain and the rice will grow well. " The second answered," nonsense (胡说),the rain will only damage the crops (撞稼). "
So they began to quarrel (争吵). Just then a third farmer came along and asked them why they were quarreling. Both farmers explained about the black cloud.
"What cloud?" asked the third farmer. They all looked at the sky. The cloud was no longer there.
The two farmers __________ that day.
A．had a holiday
B．didn't work
C．had worked hard
D．wanted to quarrel with each other


填空题
8、


9、


10、 元素X、Y、Z的原子序数都小于18．X元素原子的外电子层上有5个电子，其价含氧酸是一种强酸．Z原子外电子层比次外电子层少2个电子；Z与Y位于同一周期，它们相互作用可形成化合物Y₂Z．X的元素符号为____，Y的原子结构示意图为____，化合物Y2Z的电子式为____．

责编：cll  评论 纠错