题目内容
【题目】第一节:根据首字母,填写一个语法和意义均正确的词(每空一词,每词1分)
【1】It is the end of January, and the Spring Festival is a________.
【2】“I will seek another term as Russia’s president,” he a________ on December 7th, 2017.
【3】There has been a lot of progress towards providing access to medical t___________ but we still have a lot to do in the fight against the cancer.
【4】Marx, Engels, Lenin, and Mao Zedong are all important historical f__________.
【5】Cooperation(合作) between the two countries has w_________ great progress in renewable energy.
【答案】
【1】approaching
【2】announced
【3】treatment
【4】figures
【5】witnessed
【解析】本题考查根据首字母拼写单词,要注意理解句意,考虑所填词的词意和词性,最后根据所给信息及语法内容填写正确形式。
【1】approaching
考查动词。句意:现在是1月底,春节就要到了。表示“接近”,用进行时表将来,故填approaching。
【2】announced
考查动词。句意:他在2017年12月7日宣布:“我将谋求连任俄罗斯总统。”表示宣布,根据时间用过去时,故填announced。
【3】treatment
考查名词。句意:在提供医疗服务方面已经取得了很多进展,但在对抗癌症方面我们还有很多工作要做。“医疗”是medical treatment,故填treatment。
【4】figures
考查名词。句意:马克思、恩格斯、列宁、毛泽东都是重要的历史人物。表示“人物”,此处用名词复数,故填figures。
【5】witnessed
考查动词。句意:两国之间的合作目睹了可再生能源的巨大进步。表示“目睹”,此处是现在完成时,故填过去分词witnessed。
【题目】根据短文内容,从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Every animal sleeps,but the reason for this has remained foggy. When lab rats are not allowed to sleep, they die within a month.
One idea is that sleep helps us strengthen new memories. We know that, while awake,fresh memories are recorded by reinforcing (加强)connections between brain cells, but the memory processes that take place while we sleep have been unclear.
Support is growing for a theory that sleep evolved so that connections between neurons(神经元)in the brain can be weakened overnight, making room for fresh memories to form the next day.
Now we have the most direct evidence yet that he is right. The synapses in the mice taken at the end of a period of sleep were 18 per cent smaller than those taken before sleep,showing that the connections between neurons weaken while sleeping.
If Tononi`s theory is right, it would explain why, when we miss a night`s, we find it harder the next day to concentrate and learn new information —our brains may have smaller room for new experiences.
Their research also suggests how we may build lasting memories over time even though the synapscs become thinner. The team discovered that some synapses seem to be protected and stayed the same size. “You keep what matters,” Tononi says.
A. We should also try to sleep well the night before. |