the sentence , so he asked the teacher to explain it again.
A.Not having understood B.As he didn’t understand
C.Having not understood D.He didn’t understand
D
【解析】
试题分析:句意:他不理解这个句子,所以他请求老师再解释一次。选项AC都是非谓语动词,因为整个句子已经有并列连词so,所以前后应该都是句子,故排除ABC,故选D。
考点:考查连词的用法。
点评:本题难度适中。连词主要考查它们的意义及句法功能,但是它们是在一定的语言环境下而出现的,所以考生必须能正确理解句子的句意。
即学即练:I can’t come back________six o’clock perhaps. Don’t wait for me for supper.
A. after B. if C. until D. when
解析:C。句意:until引导时间状语从句时常与not连用,意为“我大约直到6点才能回来”,故选C。
科目:高中英语 来源: 题型:阅读理解
Motherhood may make women smarter and may help prevent dementia (痴呆) in old age by bathing the brain in protective hormones (荷尔蒙) , U.S. researchers reported on Thursday.
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“Our research shows that the hormones of pregnancy are protecting the brain, including estrogen (雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.
“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”
Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.
“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.
“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations (改变) to the brain.”
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A. Some researchers have told them.
B. Many women say so.
C. They know it by experimenting on rats.
D. They know it through their own experience.
What does the phrase “litters of pups” mean in the second paragraph?
A. Baby rats. B. Animals. C. Old rats. D. Grown-up rats.
What can protect the brain of a woman according to the passage?
A. Estrogen. B. The hormones of pregnancy.
C. More exercise. D. Taking care of children.
“It’s rat data but humans are mammals just like these animals are mammals.” What does the sentence suggest?
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“If your computer is down, just write me out a ticket.”
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“That’s right, sir.”
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阅读下面短文并回答问题,然后将答案写到答题卡相应的位置上(请注意问题后的词数要求)。
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__________________________________________________________________________________
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3.Please fill in the blank with proper words or phrases to complete the sentence.(no more than 3 words)
________________________________________________________________________________
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完成句子(共6小题;每小题1分,满分6分)
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