Do you have trouble getting started in the morning? Do you have problems learning early in the day? If you do, you are not alone, __小题1:_ They learn better at night than they do in the morning.
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.

E．Cockroaches have the same problem!
F．But they prefer warm conditions found within buildings.
G．Pest species adapt easily to their environment.

When we had our class, our psychology teacher would take any liquid medicine from a tiny bottle. This touched the whole classes. We thought that he should ask for leave and stayed at home for a rest, so he came to each class on time. Therefore, all of us studied psychology hard than we did any other subject. In the end of that term, we told him that how much we appreciated him. We were so worrying about her health that we asked him what disease he got and what medicine he took. With satisfied smile, he said, “I'm quite all right and it's a bottle of tea.”

“To avoid such disasters ,our _____for war should go away.” said the old soldier.

A．appetite

B．taste

C．factor

D．feature

South Korea returned to China the remains of the Chinese soldiers killed in the Korean War,_______ the friendly ties between the two countries

A．distinguishing

B．highlighting

C．examining

D．updating

Tired of switching from one company to another, he finally found a____ job in the government.

A．thorough

B．significant

C．frequent

D．permanent

阅读下面短文，根据以下提示：1)汉语提示，2)首字母提示，3)语境提示，在每个空格内填入一个适当的英语单词，所填单词要求意义准确，拼写正确，并将该词完整地写在答题卡中相应的横线上。
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!

—Mr Wang was caught in a snowstorm yesterday.
—I have known that，and_______his new car was completely 　destroyed.

A．hopefully	B．fortunately
C．thankfully	D．unfortunately

In________，people in that village were very poor.

A．1920s

B．the 1920s

C．1920's

D．its 1920s

The long­expected match was ________ at half­time because of the poor weather conditions.

A．disappeared	B．removed
C．abandoned	D．continued

The lack of money forced them to________their research.

A．abandoned	B．abandoning
C．abandon	D．be abandoned