【名词&注释】
电离层(ionosphere)、垃圾邮件(spam)、平流层(stratosphere)、中间层(interlayer)、自然现象(natural phenomena)、自然界(nature)、对流层(troposphere)、组成部分(part)、传递信息(transfer information)、维管形成层(vascular cambium)
[填空题](六)大气圈是自然界最活跃的组成部分(part)。在不同的大气分层中，演绎着各种自然现象。
12.在下列各组大气垂直分层中，总体而言，温度随着高度的增加而上升的一组是
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举一反三：
[单选题]34 with Father’s Day around the corner, I have taken some money out of the bank—— presents for my dadA buy
A. to buy
B. C buying
C. D to have bought
[单选题]For these reasons,I believe that lawmakers need to legislate (立法) against spam.Spammers should be fined,and perhaps sent to prison if they continue to disturb people.E-mail is a tool which helps people all over the world to communicate conveniently,but spam is destroying this conwenience.57.What does the underlined word “correspondence” in the Paragraph 1 probably mean?
A. messages
B. ideas
C. connections
D. programs
[单选题]51
A. lost
B. came
C. appeared.
D. dropped
[单选题]-I’ll do the washing-up. Jack, would you please do the floor?-
A. Yes please B． no I don’t
B. Yes sure D． no not at all
[单选题]BHaving a husband means an extra seven hours of housework each week for women, according to a new study. For men, getting married saves an hour of housework a week. “It’s a well-known pattern,” said lead researcher Frank Stafford at University of Michigan’s Institute for Social Research. “Men usually work more outside the home, while women take on more of the housework.”
A. He points out that differences among households（家庭）exist. But in general, marriage means more housework for women and less for men. “And the situation gets worse for women when they have children,” Stafford said.
B. Overall, times are changing in the American home. In 1976, women busied themselves with 26 weekly hours of sweeping-and-dusting work, compared with 17 hours in 2005. Men are taking on more housework, more than doubling their housework hours from six in 1976 to 13 in 2005.
C. Single women in their 20s and 30s did the least housework, about 12 weekly hours, while married women in their 60s and 70s did the most-about 21 hours a week.
D. Men showed a somewhat different pattern, with older men picking up the broom more often than younger men. Single men worked the hardest around the house, more than that of all other age groups of married men.
E. Having children increases housework even further. With more than three children, for example, wives took on more of the extra work, clocking about 28 hours a week compared with husbands’10 hours.
F. 45. According to the “well-known pattern” in Paragraph 1, a married man___________.
G. takes on heavier work B． does more housework
H. is the main breadwinner D． is the master of the house
[单选题]
B． Therefore
C． Besides
D． Finally
A. HoweverB． Therefore
B. Besides
C. Finally
[单选题]侧根是维管形成层(vascular cambium)产生的。( )
A. 正确
B. 错误
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