The bus hit against a tree in the fog and __________ to the deep valley, with then passengers killed and twenty wounded.
A．down did it roll B．down rolled it
C．it down rolled D．down it rolled
高三英语单项填空中等难度题
The bus hit against a tree in the fog and ______to the deep valley，with ten passengers killed and twenty wounded.
A. down did it roll B. down rolled it
C. it down rolled D. down it rolled
高三英语单项填空中等难度题查看答案及解析
The bus hit against a tree in the fog and __________ to the deep valley, with then passengers killed and twenty wounded.
A．down did it roll B．down rolled it
C．it down rolled D．down it rolled
高三英语单项填空中等难度题查看答案及解析
_____ in the dark, his head hit against a tree．
A．Walking B．He was walking C．Walked D．When he was walking
高三英语单项填空困难题查看答案及解析
The hunter ____ down and ____ to the farmer that he had___ his gun against the tree.
A. lay, lied, laid B. lay, laid, laid C. laid, lay, lied D. laid, lied, lay
高三英语单项填空困难题查看答案及解析
--- The news that the scientists in China are trying the ways to reduce the fog and haze was? ---- Top notch! Never have I seen _____ before。
A. a better one B. a worse one
C. the best one D. the worst one
高三英语单项填空中等难度题查看答案及解析
The news that the scientists in China are trying the ways to reduce the fog and haze was ______ on the radio yesterday.
A. turned out B. found out
C. given out D. carried out
高三英语单项填空中等难度题查看答案及解析
______ apple fell from the tree and hit him on ______ head.
A. An; the B. The; the C. An; 不填 D. The; 不填
高三英语单项填空简单题查看答案及解析
______ apple fell from the tree and hit him on ______ head.
A. An; the B. The; the C. An; 不填 D. The; 不填
高三英语单项填空中等难度题查看答案及解析
Yesterday I witnessed ____ car hit a tree and ___ driver was killed.
A. A; a B. The; the C. A; the D. The; a
高三英语单项填空中等难度题查看答案及解析
Researchers in the US say they might have discovered how to fight against and even reverse some processes of ageing, at least in mice. Injecting the blood of young mice into the older ones improved their brainpower, a study found. Scientists at Stanford University plan to carry out trials in people in the hope that new treatments for dementia(痴呆症) can be developed.
“There are factors present in blood from young mice that can recharge an old mouse’s brain so that it functions more like a younger one,”says Dr. Tony from Stanford University School of medicine. In the study published in Nature Medicine, mice aged 18 months were given injections of the blood taken from mice aged 3 months. The injected mice performed better on memory tests than mice of the same age that had not been given the blood. Dr. Tony said it was not known whether the same was true of humans, but a trial was planned.
A research center in UK said the treatment restored certain aspects of learning and memory in mice, but was of unknown importance to humans. The research, while very interesting, did not test the type of brain damage that was seen in dementia, which is not a necessary consequence of ageing.
Meanwhile, two similar studies by a separate team have thrown more light on how young blood may benefit the old, in mice at least. A substance in the blood of mice previously shown to have an anti-ageing effect on heart muscle also improved brain cells, according to a Harvard team. The research, published in Science, found the blood factors encouraged the growth of brain cells in old mice, and restored their sense of smell. The same chemical also improved muscle power of aged mice, the researchers found.
1. The underlined word in paragraph 1 probably means _________.
A. change B. destroy
C. speed D. increase
2. Scientists in the US will test the discovery in humans with the aim of __________.
A. proving the possibility to live longer.
B. showing the importance of scientific research.
C. publishing the study in Nature Medicine.
D. treating an age-related disease successfully.
3.According to the studies, the blood from young mice benefits the old in certain ways except in_________.
A. memory B. muscle power
C. fur color D. brain cells
4.What’s the author’s attitude to the anti-ageing studies?
A. supportive B. objective
C. negative D. doubtful
高三英语阅读理解中等难度题查看答案及解析