Water is important to all living things but some areas in the world are short of water a lot.So we should try to protect and save water.
A group of students from Zhejiang University have successfully developed an"air hand﹣washing machine".The machine uses an infrared ray induction system （红外线感应系统），which can feel the presenceof our hands.If it feels there are hands，the water with the air will come from the tap.And it has been proven that it is nearly as effective as traditional hand﹣washing.It uses only ten percent of the water that regular hand﹣washing does.The students have even set up a company to introduce the product to the public.
Li Qizhang，a member of the team that developed the machine，told a reporter that a model of their machine had already been placed in a classroom building at the university and it worked very well.
In 2014，a student called Chen Puyang first thought of the idea while he was washing his hands.Washing one's hands uses a lot of water，Chen thought.Would it be possible to replace the water with air？ Others may not give the question a second thought.However，for Chen and Li，who were studying fluid mechanics （流体力学） at the time，this was considered to be an excellent idea.
Soon，Chen，Li and several classmates started on the project.After a year of research，the team cam up with a gravity﹣driven （重力驱动） hand﹣washing machine successfully.
根据短文内容，选择最佳选项。
（1）The underlined words"presence" means " "in paragraph 2.
| A． |
形状 |
| B． |
存在 |
| C． |
距离 |
| D． |
影响 |
（2）The underlined sentence in the 4th paragraph means .
| A． |
other people may no spend a second thinking about the question again |
| B． |
other people may think it is impossible to use air instead of water |
| C． |
other people may not think or worry about the question all |
| D． |
other people may think there is no answer to the question |
（3）We can infer from the passage that .
| A． |
the air hand﹣washing machine will be expensive |
| B． |
you can wash your hands clean without any electricity |
| C． |
you can buy the "air hand﹣ washing machine" in the shop now |
| D． |
the students developed the machine by the knowledge of fluid mechanics |
（4）Which of the following is TRUE about the"air hand﹣washing machine"？
| A． |
A company was set up to produce the machine. |
| B． |
It doesn't need any water when you wash your hand. |
| C． |
It was invented by two students from Zhejiang University. |
| D． |
The idea of the machine came to Chen's mind in a sudden. |
（5）Compared with the air hand﹣washing machine，how much water can be wasted by regular hand﹣washing？
| A． |
Only ten percent of the water. |
| B． |
About twenty percent of the water. |
| C． |
About ninety percent of the water. |
| D． |
A hundred percent of the water. |
阅读理解(每小题2分，共30分)
A
There are many kinds of ants in America．One kind of ants is very strong．People are afraid of them and the other animals are afraid of them，too．
These ants are often in big groups(群)．They eat all the animals on their way．They can kill and eat elephants．And they can eat horses，too．Sometimes they can even kill people and eat them．When the ants come near，people leave their homes．But people are sometimes happy after the ants pass by．Because they can see no insects(昆虫) or snakes．Some ants in America can be very ________．
| A．ugly |
| B．strong |
| C．friendly |
| D．shy |
People and animals are afraid of ________．
| A．a kind of ants |
| B．all kinds of ants |
| C．small ants |
| D．big ants |
People are afraid of the ants because ________．
| A．they can eat and kill elephants |
| B．they can eat horses |
| C．they are often in big groups |
| D．they can kill people |
Where are insects or snakes after the ants pass by？
| A．They are under the ground． |
| B．They go to other places before the ants come． |
| C．Ants kill and eat them． |
| D．People kill and eat them． |
Which is the best title(题目) for the story？
| A．Ants |
| B．American Ants |
| C．Big Ants |
| D．Strong Ants |
C
Mr and Mrs Green had different ideas about where to go that weekend．Mrs Green wanted to go to Florida to see her sister，but Mr Green didn’t want to go there．He wanted to go to Maine．“Maine is a little cold，”said Mrs Green．“I like swimming，but the water in Maine is usually not warm enough．”
“Florida’s too far，”said Mr Green．“We don’t have enough time to drive there．It’ll take us more than two days．”
Just then，the phone rang．Mr Green answered the phone．It was Mr Green’s mother．“Is that Jim？Please come in the shortest time．I need help．I’m calling from the hospital in Boston．”
They stopped their talking and in no time they both went there．Where did Mr Green want to go that weekend？
| A．Florida． |
| B．Maine． |
| C．Boston． |
| D．Washington． |
What does Mrs Green like to do on weekend？
| A．Go swimming． |
| B．Drive to Maine． |
| C．See her parents． |
| D．Visit her friends． |
Who called them while they were talking？
| A．Mr Green’s father． |
| B．Mr Green’s mother． |
| C．Mr Green’s friend． |
| D．Mr Green’s daughter． |
Where was Mr Green’s mother then？
| A．In Florida． |
| B．In Maine． |
| C．In Boston． |
| D．In London． |
Where did they go at last？
| A．Boston． |
| B．Maine． |
| C．Florida． |
| D．Nowhere． |
B
James lives in the mountains with his parents．There are not any schools near the farm．He has to study in the town from Monday to Friday．His father often takes him there in his car on Sunday afternoon．And he meets him on Friday afternoon．
The boy likes animals．He can see some near his house and school．But he never visits a zoo．Some of his classmates have been to the zoo and they often talk about the elephants，dolphins，lions，tigers and pandas．He sees them on TV．So he can only listen to them．
It’s Friday today．James’ father will go to the city tomorrow．There’s a big zoo there．The boy asks him to take him there．He agrees．James is so happy that he can’t sleep at night．He gets up early this morning and puts some food in his bag．Can you guess what he does that for？The underlined word“town”in the passage means ________．
| A．首都 |
| B．省会 |
| C．山村 |
| D．镇子 |
James is at home ________．
| A．on weekends |
| B．at night |
| C．from Monday to Friday |
| D．from Sunday evening to Friday afternoon |
His father takes James to school because ________．
| A．he does not like to stay there |
| B．he works there |
| C．it is far from the farm |
| D．he is very free |
James is very happy because ________．
| A．he will stay at home tomorrow |
| B．he can go to the city tomorrow |
| C．he can take his father’s jeep again |
| D．he will visit the zoo |
What does James put some food in his bag for？
| A．He thinks he will be hungry tomorrow． |
| B．He will give it to the animals in the zoo． |
| C．He does not know where the restaurants are in the city． |
| D．His father does not have any friends in the city． |
阅读理解(每小题2分，共30分)
A
My friend，Dick，has a large police dog．Its name is Jack．Every Saturday afternoon，Dick takes Jack for a long walk in the park．Jack likes these long walks very much．
One afternoon，a young man came to visit my friend．He stayed a long time．He talked and talked．Soon it was time for my friend to take Jack for a walk．But the man was still(仍然) there．Jack became very worried(着急的)．He walked around the room several times and then sat down in front of the man and looked at him．But the man kept talking．Finally Jack couldn’t stand it．He went out of the room and came back a few minutes later．He sat down again in front of the man，but this time he held the man’s hat in his mouth．From the story，we know that Jack is ________．
| A．Dick’s good friend |
| B．a large police dog |
| C．a young man |
| D．a young man’s dog |
Where does Dick walk his dog every Saturday afternoon？
| A．In his room． |
| B．In the street． |
| C．In the park． |
| D．In the field． |
Jack became very worried one afternoon because ________．
| A．Dick couldn’t take him out for a walk at the usual time |
| B．a young man came to visit Dick that afternoon |
| C．Dick walked around his room several times |
| D．he couldn’t find the young man’s hat |
What does the underlined word“stand”mean in the passage？
| A．站立 |
| B．理解 |
| C．支持 |
| D．忍受 |
Why did Jack sit down again in front of the man with the hat in his mouth？
| A．Try to make the man laugh． |
| B．Like the young man very much． |
| C．Ask the young man to leave． |
| D．Want to talk with the young man． |
B
Mr．Brown was traveling by train．He was very hungry．The train stopped at a small station．He wanted to buy some cakes to eat very much．But it rained hard．So he wanted someone to help him．Then a little boy came here．Mr．Brown asked him to buy cakes for him．He gave the little boy some money and said，“Go and buy two cakes with the money．One cake is for me，and the other is for you．”
The little boy was happy and ran to buy cakes in the rain．A few minutes later the boy came back．He said to Mr．Brown，“I’m very sorry，sir．I eat the last cake．It’s fifty fen．And it’s very delicious．Thank you very much．Here is your fifty fen．”Mr．Brown was ________．
| A．on a bus |
| B．on a plane |
| C．in his car |
| D．on a train |
What’s the weather like that day？
| A．It was sunny． |
| B．It was rainy． |
| C．It was fine． |
| D．It was windy． |
Mr．Brown wanted the little boy to ________．
| A．buy two cakes for him |
| B．buy two cakes for them |
| C．eat the two cakes |
| D．buy one cake |
How much money did Mr．Brown give to the boy？
| A．One yuan． |
| B．Two yuan． |
| C．Fifty fen． |
| D．Fifty yuan． |
The little boy ________．
| A．didn’t buy any cakes and took the money away |
| B．bought one cake and gave it to Mr．Brown |
| C．bought one cake and ate it himself |
| D．bought two cakes．He ate one and gave the other one to Mr．Brown |