【名词&注释】
甲状腺(thyroid)、自然灾害(natural disaster)、矿产资源(mineral resources)、催化作用(catalysis)、发挥作用、调节作用(regulation)、风暴潮(storm surge)、深水港(deepwater port)、河流入海口、关键性特征
[单选题]关于人体激素的叙述，错误的是
A. 激素在人体内作为信息物而发挥作用
B. 激素在人体内含量较低，但有高效的生物催化作用
C. 甲状腺激素除了促进人体产热，还有其他生理效应
D. 正常人体内，激素的分泌受反馈调节
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举一反三：
[单选题]成膜体在细胞板的形成过程中起着重要的作用。( )
A. 正确
B. 错误
[单选题]
A. mustn’t
B. can’t
C. shouldn’t
D. needn’t
[单选题]Michael’s new house is like a huge palace, with his old one.
A. comparing
B. compares
C. to compare
D. compared
[单选题]有无乳汁是判断是否为桑科植物的一个关键性特征。( )
A. 正确
B. 错误
[单选题]When are the visitors expected to ask questions ?
A. During the lunch hour
B. After the welcome speech
C. Before the tour of the labs
[单选题]46______
A. punctually
B. frequently
C. formally
D. shortly
[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]在海岛开发的过程中，该岛
A. 人口容量最主要受耕地资源、矿产资源限制
B. 适宜大面积种植水稻、甜菜、香蕉和橡胶
C. 河流入海口处地势开阔，适宜建设深水港(deepwater port)
D. 需要防范强风、暴雨、风暴潮(storm surge)等自然灾害
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