题目
题型:不详难度:来源:
A.concerned | B.fascinated |
C.grateful | D.determined |
答案
解析
核心考点
试题【 Though you"ve got a tight schedule these days, I should be ________ if you coul】;主要考察你对数词等知识点的理解。[详细]
举一反三
To investigate when cockroaches(蟑螂) learn best, researchers at Vanderbill University tested the insects for which odor(peppermint 薄荷 or vanilla 香草) they preferred. Most cockroaches preferred the smell of vanilla to that of peppermint at all times. _小题2:_ Therefore, the scientists trained the cockroaches to prefer the peppermint smell by rewarding the insects with a taste of sugar water when they approached a peppermint smell. _小题3:__
When the cockroaches were trained at night, they remembered the new associations(peppermint=sugar water; vanilla=salt water) for up to 48 hours. However, if the cockroaches were trained in the morning, they quickly forgot which smell went with which water. __小题4:_
So, cockroaches learn better at night than they do in the morning. _小题5:_ Because of this, it is likely that information they gather at night will be more useful to them. These experiments provide some clues about the interactions between body rhythms, learning and memory.
A.When these insects moved toward a vanilla smell, on the other hand, they were punished with a taste of salt. |
B.This result thus shows that the time when they were trained decided the effect of their learning. |
C.They are often more active and tend to search for food during the night. |
D.They were also found to like sugar water, but not salt water. |
F.But they prefer warm conditions found within buildings.
G.Pest species adapt easily to their environment.
A.appetite | B.taste | C.factor | D.feature |
A.distinguishing | B.highlighting | C.examining | D.updating |
A recent study suggests that students who bring water into exams may improve their grades by 10 percent.
Scientists then小题1:____(比较) their exam results with their normal schoolwork grades.They found that all those 小题2:______had brought drinks with them got better grades.
Scientists also considered the students "schoolwork and小题3:_____(预计)their grades.This was to make sure that the reason was not simply that smarter students were more小题4:________(有可能)to bring drinks with them.
小题5:______is unclear why drinking water improves exam results.But scientists say having enough water in our小题6:b and not feeling thirsty could have a helpful effect 小题7:________our brains.Drinking water may also cut小题8:d_____ on anxiety ,which affects exam performances.
So next time,小题9:w you are going to have a big exam,try bringing a bottle of water with you.Who knows—it may help you小题10:p the exam!
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