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2021年国家开放大学理工英语(3)单元自测1-8答案(4)

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      It is very necessary to make your house look greener because it has a direct impact on your health. If you keep your house greener, you will get rid of many dangerous diseases. Here are some ways to keep it greener.
1. Good and reliable Interior
      Indoor material, like windows, doors, cupboards, etc. must be of good quality. These things play an important role to clean the house. Doors and cupboards must be of high quality wood. Aluminium windows must be used. You must use high-quality paints for walls, doors, windows and cupboards.
2. Using wider windows and doors for ventilation.
      Oxygen is a necessary element to enable you to live alive. For healthy life, windows and doors must be wide and usually be kept open at least for 15 hours a day, as ventilation of air makes you fresh and healthy.
3. Placing plants especially flowers at various places
      No one wants an empty house, and plants definitely play a refreshing role. First, the plants provide you with oxygen necessary for survival. Second, plants and especially flowers spread heart-attracting fragrance. All unhealthy odors are eradicated from your home and you feel fresh whenever you are inside it. Flowers also make your home interior look more appealing.
4. Disposing off wastes away from home regularly
      It's very important to throw away household wastes far from your house every day. When wastes are kept untouched for many days, they attract bacteria and viruses. Flies and mosquitoes also start gathering and increasing at such places. As a result, diseases are caused.
5. Using anti-bacterial materials for washing floors and contents
      Usually unclean fans, floors and walls breed bacteria and viruses, which are then carried by flies and mosquitoes. These carriers then infect the humans by contact through contaminated food or direct attacks on human body. It's always recommended to use anti-bacterial or anti-viral cleaners for fans, floors, walls, laptops, and TVs.
 1. A green home is closely related with the size of your home.  F
2. A green home does good to your health.  T
3. The quality of indoor materials is of great importance to keep the house clean.  T
4. Household wastes should be thrown away daily.   T
5. Flies and mosquitoes breed bacteria and viruses.   F
 
 
二、听力理解:请听下面的对话,根据对话内容进行判断,正确为“T”,错误为“F”。
1. Mary is receiving Henry.  回答正确
 
2. Henry will work in the Personnel Department.  回答不正确
 
3. Henry does mind working long hours.  回答不正确
 
4. Henry often took quite a few courses each semester in school.  回答正确
 
5. Henry didn’t do any part-time job when he was at school.  回答不正确
 
二、听力理解:请听下面的对话,根据对话内容进行判断,正确为“T”,错误为“F”。
1. Milk cartons are unburnable trash. F
2. Everyday Henry can leave his rubbish outside as he wishes. F
3. Plastics would harm the environment if you were to burn them. T
4. You can leave batteries and clothes once every week. F
5. Henry can just leave all his rubbish outside his apartment without putting them into a bag. F
 
 
二、听力理解:请听下面的对话,根据对话内容进行判断,正确为“T”,错误为“F”。
 
1. The Belgian city of Ghent has declared Mondays meat-free days.  F
2. The livestock sector has become one of the top two or three most significant contributors to the most serious environmental problems.   T
3. The author is a complete vegetarian.   F
4. According to the passage, people who eat less meat will be easily sick.  F
5. There aren't many vegetarian dishes in the restaurant mentioned in the passage.   F
 
 
二、听力理解:请听下面的对话,根据对话内容进行判断,正确为“T”,错误为“F”。
 
1. They are talking about a camera.  F
2. You can find a mobile phone in any of latest MP4.  F
 
3. The new cell phone is just like a pad.  T
 
4. Digital devices are becoming bigger and harder to carry.  F
 
6. The cell phone generally has memories of over 512 MB.  T
 

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