___ I saw her, she was working in a shop.
A. The last time B. For the last time. C. To the last time. D. In the last time.
Some of you may have finished unit one. _____, you can go on to unit two.
A. If you may B. If you doC. If notD. If so
____ it rain tomorrow, we would have to put off the visit to the Yangpu Bridge.
A. Were B. Should C. Would D. Will
如今微信（WeChat）走进了人们的生活，为大家带来了诸多便利，但有些人也随之成了“微信控”(WeChataholic)，请你就此事写一篇文章。你的文章必须包括：此现象的描述和你对微信的看法
注意：1. 词数120左右；
2. 文中需要包含提示内容,可适当增加细节,使行文连贯。
For years, researchers have looked into a possible relationship between heat and violence. There are conflicting results over whether there is an actual connection between rising anger and rising temperature, but the murder rate constantly increases during the months of July and August, according to the FBI's annual crime report.
Many police chiefs say they put more policemen on the streets when the heat rises. “Calls for service always increase from May, June, July to August，” said New Bedford's Captain Richard Spiriet. “The longer period of time you have the heat, the worse it is. It's just the opposite in the winter time.”
Craig Anderson, a professor and specialist in social psychology at Iowa State University, argues the evidence is clear. “As the temperature goes up, people become more uncomfortable. They become easier to get angry，” he said. “That increases the possibility that a small conflict will be interpreted as more major.” Anderson conducted a couple of studies looking at crime rates over the course of several years within the same area to see when most violent crimes occurred. He found that violent crimes were more likely to occur on hot days and hot months—even hot years had higher violent rates than cold years, according to his research.
Other researches show it is not so much the physical climate, but rather the social climate, that causes increased violence. “During the summer months, people stay up later. They talk with their neighbours. They party with their friends，” said Jack Levin, director of the Brudnick Centre on Violence and Conflict at Northeastern University. “It is more likely to be large numbers of people interacting, and they are more likely to argue.”
Perhaps the realization that there is a link will help spur people in an argument step back and say “Let's cool off.”—both literally(字面上地) and figuratively(比喻地)．
Title | Heat and violence |
Theme | Violence possibly has a 1.________ with heat. |
Facts | ☆July and August witness the2.________ increase of murder rate. ☆More policemen are called in with the heat 3.________． ☆People get angry more 4.________ as the temperature goes up. |
5.________ of the research | ☆Fewer violent crimes occur on 6.________ days. ☆The 7.________ climate causes increased violence. ☆People usually go to8.________ later during the summer months. ☆It is more likely to be 9.________ when people chat with each other. |
Conclusion | 10.________the link will help people in an argument cool off. |
Scientists in UK have grown a living human "brain". The team at Aston University created tiny bunch of cells which act like a mini nervous system.
They believe it could help find a cure for worse mental conditions like Parkinson’s disease. Professor Michael Coleman is leading the research program. He explained, "We are aiming to be able to study the human brain at the most basic level, using an actual living human cell system. Cells have to be alive and operating efficiently to enable us to really understand how the brain works. "The experiment involves changing cells from a cancer tumour (肿瘤）and making them behave like brain cells.
Although far from finished, researchers hope the false brain cells will give them a greater understanding of how real brains work. This, in turn, could significantly further research into conditions which affect the brain. Neil Hunt, chief leader of the research group, said, "It is still very early days, but in the future the research could lead to a useful tool for looking into dementia (痴呆)."
Th
e technique could also provide a way to carry on animal test and is being supported by the Humane Research Trust (HRT). The scientists predict that over the next ten years a million people will develop dementia. Professor Coleman believes their findings could change this. He said，"We hope our research will provide scientists with a new and highly relational human expe
rimental model to help them understand the brain better and develop new drugs to control the relat
ed disease. However, the biggest challenge at present is that we are greatly short of fund, which will slow our research."
1.UK scientists grow a living human "brain" in order to ____
__.
A. study the structure of human brain
B. make use of living human cell system
C. discover how human brain really works
D. separate cells from a cancer tumour
2.According to Neil Hunt, research into brain cells ______.
A
. will get finished as early as possible
B. will make people discover dementia
C. will affect the brain growth in many ways
D. will help to treat some diseases in nerve system
3.From the last paragraph，we can know that ______
A. the technique provided by HRT is immature
B. animal tests are no longer allowed by law
C. a million people suffer from brain diseases
D. the research program lacks financial support
4.The text is intended to ______.
A. tell us about a breakthrough in medical research
B. introduce a research program in human's brain
C. introduce the progress of drugs for dementia
D. tell us about health problem in nerve system
