4．
Several weeks ago the newspapers were filled with the story of a student at Fudan University who had been poisoned（投毒）to death by his roommate．The story has（71）sent fears through universities and middle schools where many students live in dormitories and share rooms with four and（72）sometimes six roommates．It made roommates take a closer look at each other and wonder，"Do I （73）really"know this person？"
Living together can bring out the best and the （74）worst in people．Some roommates become best friends，and some learn to live with each other，but very few end up （75）hating each other．In the end，living with roommates is all about getting along．
It always a good idea that you and your （76）roommates should be clear about your daily habits．Some people like to sleep late and some people like to get up early．Some people like to read quietly and some people like to play （77）noisy video games．It's important to let people have their own space and not bother them，so you should let your roommates know your likes and dislikes from the （78）beginning．
You should also make it clear that what's （79）mine is mine and what's yours is yours．That means keeping your hands off other people's things including mobile phones and even their clothes．Talking about problems when they are still small （80）is also necessary．A small discussion about the problem can stop little things from growing into big ones．
| Sometime bad hate be roommate real noise my send begin |
Living together can bring out the best and the （74）worst in people．Some roommates become best friends，and some learn to live with each other，but very few end up （75）hating each other．In the end，living with roommates is all about getting along．
It always a good idea that you and your （76）roommates should be clear about your daily habits．Some people like to sleep late and some people like to get up early．Some people like to read quietly and some people like to play （77）noisy video games．It's important to let people have their own space and not bother them，so you should let your roommates know your likes and dislikes from the （78）beginning．
You should also make it clear that what's （79）mine is mine and what's yours is yours．That means keeping your hands off other people's things including mobile phones and even their clothes．Talking about problems when they are still small （80）is also necessary．A small discussion about the problem can stop little things from growing into big ones．
20．Water rides-Something that really attracts you!
The water rides are the most popular rides．（56）B The boat slides down very fast into the water!You can buy your ticket before you go to the theme park．Then you do not have to stand in a long line．（57）A If more than 10people go to the theme park together，it costs less．There is a ticket machine beside each ride．You can stand in line for your turn．Or you can take a ticket that gives a time you can go on that ride．Then you can do something else while you are waiting．
（58）D This is because when you are scared，your knuckles become white!It is a strange idea to pay more money to be scared，but many people do that because they want to enjoy the excitement of the rides!Sometimes they laugh and scream!At the theme parks，there are special rides for young children．Of course，the children's rides are not fast or high or scary．（59）E The children are safe when they sit inside the teacups and the ride goes around very slowly．
Sometimes there are animals like rabbits and sheep for children to see at a theme park．So there are lots to do and see．You will sleep very well after you have been to a theme park for the day!（60）C Or would you be too scared？Do you think that your mother and father would enjoy this ride？
The water rides are the most popular rides．（56）B The boat slides down very fast into the water!You can buy your ticket before you go to the theme park．Then you do not have to stand in a long line．（57）A If more than 10people go to the theme park together，it costs less．There is a ticket machine beside each ride．You can stand in line for your turn．Or you can take a ticket that gives a time you can go on that ride．Then you can do something else while you are waiting．
（58）D This is because when you are scared，your knuckles become white!It is a strange idea to pay more money to be scared，but many people do that because they want to enjoy the excitement of the rides!Sometimes they laugh and scream!At the theme parks，there are special rides for young children．Of course，the children's rides are not fast or high or scary．（59）E The children are safe when they sit inside the teacups and the ride goes around very slowly．
Sometimes there are animals like rabbits and sheep for children to see at a theme park．So there are lots to do and see．You will sleep very well after you have been to a theme park for the day!（60）C Or would you be too scared？Do you think that your mother and father would enjoy this ride？
| A．You can go to the rides without waiting! B．You can travel in a boat made of wood． C．Would you like to go on this white knuckle ride？ D．The most exciting rides are called"white knuckle rides"． E．One famous ride for children looks like a lot of teacups! |
18．
There is no enough oil in the world now．As time goes by，it is becoming less and less．（66）APerhaps we will go back to use horses，carriages and bicycles．
In the Second World War，some people didn't use gas made from petroleum （石油） in their cars．（67）CThe car didn't go fast but they ran，so this was better than nothing．However，in the future，we can't cut down all our trees to make gas．（68）B
Besides different types of gas，we can also use electricity to run our cars．（69）ESome countries have coal（煤）and they make electricity with that，but we might not always have coal either．Other countries have big，strong rivers，and they can use the power of water to turn turbines （涡轮机） and make electricity easily and cheaply．
（70）FWe put turbines into the mouth of the river．When the tide comes in，the water turns the turbines and when it goes out，it turns them again．
Which of these ways will be used to run our cars in the future？
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| A．So what are we going to do when oil runs out？ B．We need our trees for other things，too． C．They made gas from wood and plants instead． D．How to run our cars？ E．But first we must make electricity! F．We are also able to get power from the ocean tides （海潮）． |
In the Second World War，some people didn't use gas made from petroleum （石油） in their cars．（67）CThe car didn't go fast but they ran，so this was better than nothing．However，in the future，we can't cut down all our trees to make gas．（68）B
Besides different types of gas，we can also use electricity to run our cars．（69）ESome countries have coal（煤）and they make electricity with that，but we might not always have coal either．Other countries have big，strong rivers，and they can use the power of water to turn turbines （涡轮机） and make electricity easily and cheaply．
（70）FWe put turbines into the mouth of the river．When the tide comes in，the water turns the turbines and when it goes out，it turns them again．
Which of these ways will be used to run our cars in the future？