A．For example B．happen C．while D．over and over
8．People often call the plastic bags"white pollution"．（60）B，it becomes the worst invention for the human．It is reported that it takes 100-200years to break down the plastic bags completely．However，a 16-year-old high-school Canadian student called Daniel Byrd discovered the way to break down the plastic bags!
The idea of the invention comes from his housework．He always helps her mother do the housework．Every time，when he opens the closet，the plastic bags fly out．This makes him very angry．（61）E．With his teacher's help，he found that when he put the two germs（细菌） mixture up and that made the plastic bags break down quickly．
He made an experiment first．He put some earth germs and plastic bags together．After 12weeks，he found the plastic bags had been broken down．（62）C．The experiment also showed that the plastic bags could be broken down in three months．And they only gave out some water and little carbon dioxide （CO2）．
Now Byrd has got 30thousand dollars from his invention．（63）D．He has also got a lot of award from many universities．
The idea of the invention comes from his housework．He always helps her mother do the housework．Every time，when he opens the closet，the plastic bags fly out．This makes him very angry．（61）E．With his teacher's help，he found that when he put the two germs（细菌） mixture up and that made the plastic bags break down quickly．
He made an experiment first．He put some earth germs and plastic bags together．After 12weeks，he found the plastic bags had been broken down．（62）C．The experiment also showed that the plastic bags could be broken down in three months．And they only gave out some water and little carbon dioxide （CO2）．
Now Byrd has got 30thousand dollars from his invention．（63）D．He has also got a lot of award from many universities．
| A．But he was so young B．Because it is hard to break down C．Then he made another experiment D．He wants to go to college with his money E．So he thinks how to deal with these plastic bags |
6．We made a survey about different kinds of transportation last week．We asked students（46）D their favorite kinds of transportation．（47）A are some of the results．Most students come to school by bike and they like（48）C bikes．Of course，bikes are cheaper than cars and buses．Some students like cars（49）B they are safer than bikes．Cars are also faster than bikes and buses．Among some students，buses are not popular，because they often have（50）D passengers．Buses are also dirtier and more crowded．However，not many people can afford a car．
| 46．A．from | B．With | C．to | D．about |
| 47．A．Here | B．There | C．We | D．They |
| 48．A．by | B．on | C．riding | D．ride |
| 49．A．though | B．because | C．so | D．but |
| 50．A．too much | B．a lot | C．lot of | D．too many． |
5．Chinese love to eat because food is thought to be the most important way to communicate．So some people often order so many dishes that they can't eat them up．Chinese government asks the public not to waste food anytime．（56）C．
The managers of some restaurants are doing what they can to help people to reduce （减少） food waste．（57）A，the waiters should remind them to reduce the number of dishes kindly，or the waiters should ask them to take the leftover with them．
Zhong Li，a famous woman，said，"（58）E，even sometimes we can order a half so that we won't waste．"Once Zhong Li ordered half a Beijing Duck and some vegetables．She believed that saving food didn't mean losing face．
（59）D．We call it"cleaning the plates"．Xu Jun has done it for years．He said，"（60）B．However，many people have thrown away a whole chicken or fish．"Cleaning the plates is not only to save food，but also to protect the environment and our health．
The managers of some restaurants are doing what they can to help people to reduce （减少） food waste．（57）A，the waiters should remind them to reduce the number of dishes kindly，or the waiters should ask them to take the leftover with them．
Zhong Li，a famous woman，said，"（58）E，even sometimes we can order a half so that we won't waste．"Once Zhong Li ordered half a Beijing Duck and some vegetables．She believed that saving food didn't mean losing face．
（59）D．We call it"cleaning the plates"．Xu Jun has done it for years．He said，"（60）B．However，many people have thrown away a whole chicken or fish．"Cleaning the plates is not only to save food，but also to protect the environment and our health．
| A．If customers order more than they can eat B．There are still a lot of people who don't have enough to eat C．Restaurants have also joined the action D．Some people like eating up everything on their plates E．I think we should order enough food we like |
4．
"Thank you"is widely（71）usedin a modern society．It is a very good manner．You should say"Thank you"（72）wheneverothers help you or say something kind to you．For example：when someone（73）opensthe door for you，when someone says you have done your work well，when someone says you have （74）boughta nice shirt，or your city （75）is very beautiful，you should say"Thank you"．"Thank you"is used not only between friends，（76）but alsobetween parents and children，brothers and sisters，husbands and wives．
"Excuse me"is （77）another short polite usage．We use it as the same as"Thank you"．When you hear someone say so behind you，you'd got to know that somebody wants to walk past you without（78）touching you．It is not polite to interrupt （打断） others while they are （79）talking．If you want to have a word with one of them，please say"Excuse me"（80）first，and then begin to talk．You should also do so when you want to cough or make any unpleasant noise before others．Let's say"Thank you"and"Excuse me"on the right occasion．
| is，first，used，another，bought，opens，whenever，talking，but also，touching |
"Excuse me"is （77）another short polite usage．We use it as the same as"Thank you"．When you hear someone say so behind you，you'd got to know that somebody wants to walk past you without（78）touching you．It is not polite to interrupt （打断） others while they are （79）talking．If you want to have a word with one of them，please say"Excuse me"（80）first，and then begin to talk．You should also do so when you want to cough or make any unpleasant noise before others．Let's say"Thank you"and"Excuse me"on the right occasion．
3．The Secrets of Happiness
（62）CMoney and success alone do not bring lasting（长久的）happiness．Happiness depends on ourselves．In other words，we make our own happiness．Here are a few suggestions to help you be happier．
（63）DToo often，we spend so much time thinking about the future-for example，getting into college or getting a good job that we fail to enjoy the present（现在）．You should enjoy life's simple pleasures，such as reading a good book，listening to your favorite music，or spending time with close friends．People who have several close friends live happier and healthier lives．
Another secret to leading a happy life is to be active，and have hobbies where you forget your problems．Many people experience this dancing，or playing a sport，such as skating or soccer． （64）B
Finally，many people find happiness in helping others．According to studies，people feel good when they volunteer their time to help others．（65）AYou can help a friend with his or her lessons，go shop-ping to buy food for your family members，or simply help out around the house by washing the dishes．
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（62）CMoney and success alone do not bring lasting（长久的）happiness．Happiness depends on ourselves．In other words，we make our own happiness．Here are a few suggestions to help you be happier．
（63）DToo often，we spend so much time thinking about the future-for example，getting into college or getting a good job that we fail to enjoy the present（现在）．You should enjoy life's simple pleasures，such as reading a good book，listening to your favorite music，or spending time with close friends．People who have several close friends live happier and healthier lives．
Another secret to leading a happy life is to be active，and have hobbies where you forget your problems．Many people experience this dancing，or playing a sport，such as skating or soccer． （64）B
Finally，many people find happiness in helping others．According to studies，people feel good when they volunteer their time to help others．（65）AYou can help a friend with his or her lessons，go shop-ping to buy food for your family members，or simply help out around the house by washing the dishes．
| A．If you want to feel happier，do something nice for someone． B．You can forget about your problems，and only think about the activity． C．Most people want to be happy，but few know how to find happiness． D．The first secret of happiness is to enjoy the simple things in life． |