There are about 80.000.000 mines under the ground in more than 60 countries. It is difficult and dangerous to clear these mines.About 50 people including many children were killed or hurt each day.In 2003，APOPO，a Duch research company that trains the animals,came up with the idea of using rats to search for the mines.
The animal trainers found that a kind of rats from Africa were clever and had a sharp sense of smell.The rats were about 75 cm long and weighted about 1.35 kg.light enough to run across a minefield without setting off the mines.
In January 2004，the APOPO startec this preject.First ,the trainers let the 4-week-old baby rats get familier with humans. A few weeks later，the rats were no longer afraid of people and the things around them.Then they were trained to connect a click sound with food.After the rats had learned that ,the trainers then taught them to tell the different between the smell of mines and other smells.When the rats could do it，the click was sounded and they were given a bit of bananas.The method was called clicker training.“The training isn’t easy.”said the trainer Adulish Mebomvu.“You have to be patient.Sometimes I get angry,but then again.I tell myself these are animals.”
After nine months’ training,the rats were taken to 4 minefield. They ran across the minefield ,stopped, sat and searched the ground to tell the deminers that they smelt out a mine. Then the mine was cleared.It had taken two deminers a day to clear a 200 m2 minefield. But with the help of two rats they could finish it in two hours.
The rats and the deminers saved thousands of lives.“The rats did this job much better than we expected.So far they have helpde to make almost 2.000.000 m2 of land safe.They are heroes.”said Bart Woetjcds.the head of the APOPO.The APOPO trained the rats to search for__.
| A．children | B．animals | C．minea | D．bananas |
While training the rats,the trainers have to be __.
| A．patient | B．clever | C．brave | D．serious |
How long did the training last?
| A．Two hours | B．One day | C．Four weeks | D．Nine month |
Which of the following is NOT TRUE acorrding to the passage?
| A．Each day about 200 people were killed or hurt by minea |
| B．The APOPO started to train the rats is January 2004. |
| C．The trainers gave the rats food after they smelt out a mine . |
| D．The rats and the deminres saved thousands of livers. |
In class，Peter put up his hand and said to his teacher，"I lost my baby tooth．"
"Congratulations，"Mrs．Gilbert said．Then she asked the class if anyone had any advice for Peter．
Keiko，a Japanese girl，put up her hand first．"If it is a lower tooth，you should throw it over the roof of your house； if it is an upper tooth，you should put it under the floor．Then your new adult tooth will grow properly．"
"You shouldn't throw your baby tooth away，Peter．You should keep it and give it to your mother，"said Jack，a French boy．
"Why should I do that？"asked Peter．
"She will make it into a necklace（项链） for you to wear，"said Jack．
Jorge，who was from Mexico，had some different advice．"You should take your tooth home and put it under your pillow（枕头） when you go to sleep，"Jorge said．
"Why should I do that？"asked Peter．
"Because the tooth fairy（牙仙） will come to keep your tooth and give you good luck．Sometimes she even brings a small toy．"
Peter liked Jorge's advice the best．Mrs．Gilbert said to him，"Whatever you decide，you should show your mother your tooth when you et home．"
When Peter got home，he showed his mother his tooth and told her his plan．The next morning，Peter woke up and looked under his pillow．The tooth was gone．In its place，he found a dollar and a letter．This is what the letter said：
Dear Peter，
Congratulations!You lost your first tooth．I will keep it forever．You should buy something nice for yourself with this money．
Love，
The Tooth Fairy
46．Peter put up his hand to ．
A．answer the teacher's question
B．ask the teacher a question
C．tell the teacher he lost his baby tooth
47． is from France．
A．Keiko
B．Jack
C．Jorge
48．What did Peter do with his lost baby tooth？
A．He threw it over the roof of his house．
B．He asked his mother to make a necklace for him．
C．He put it under his pillow．
49．From the passage，we can infer（推断） that Peter is a ．
A．primary school student
B．high school student
C．college student
50．In fact，who gave Peter a dollar？
A．Mrs．Gilbert．
B．The Tooth Fairy．
C．Peter's mother．
In the USA，each year，students take part in a kind of competition called the Science Olympiad．
It has a lot of different events．Students go there to show how much they know about the science of music，biology，chemistry and others．My best event is forestry．
The big day came at last!First，I went to watch the tower building competition．That's when students build small towers and put heavy things on top of it．They hope they can hold them up．One of my schoolmates was putting things on her tower．She was nervous，and in the end it was too heavy for her tower to hold it﹣﹣﹣it broke!I felt bad for her．
After lunch，I helped some teammates with their events．One was geography，and the other was history．I don't know much about those things，so I just watched my teammates do most of the work．
At last，it was time for my favorite event﹣﹣﹣﹣forestry．The rules were easy．We had to look at more than 40different kinds of leaves and find out which plants they were from．We also had to answer some questions about the uses of each leaf.1knew almost all of the leaves and could answer most of the questions．I had spent more than a month studying on the Internet to get ready．At the end，it was time for the awards（颁奖）．I was nervous，because the forestry awards were last．We won second place in the whole state!A nice man gave me a medal and smiled at me．
46．What is the Science Olympiad？
47．Is forestry the author's（作者的）best event？
48．Why did the author feel bad for the first event？
49．Where did the author prepare for his event？
50．Which prize did the author's team win，the second or the last？
．
"Red envelope"fever has swept the country recently．Cash（现金）can be sent through electronic payments．Children can get more money than before．But everyone needs to understand something about money：where it comes from，how to save it and how to spend it wisely．Too many parents don't take time to teach their children about money，and as a result，many of those children don't know how to deal with money when they grow up．
When should parents begin teaching their children about money？Experts agree that it's never too early．The more children learn about money，the more wisely they will be able to deal with money as they grow older．To begin with，parents can teach kids how to count money．
Next，parents can teach kids how to save money．For example，a kid wants a new bicycle．Parents can teach them to save part of their pocket money for that bike，while still keeping some money for ice cream and movies．In this way they will begin to understand the meaning of saving．
Also it's never too early to teach children different ways to make money besides snatching （抢） red envelope．For example，they can wash cars，clean gardens，look after babies．Sit down with children and talk with them about some ways they could make money．You'll be surprised and glad at the effort they will begin making．
Teach children about money when they're young and their future will be brighter．
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Title（标题）：Teach children about（41） |
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Everyone needs to understand something about money：（42） it comes from，how to save it and how to spend it wisely． |
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When to begin teaching about money |
How to（44） |
How to make money besides snatching red envelope． |
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It's never too（43） |
Understand the meaning of saving． |
They can wash cars，（45） ． |
Let's clean up the ocean together．
We all know it's important to have dreams．However，to make the dream come true is not an easy thing．A young Dutch man named Boyan enjoys working hard to make his dreams come true．
When Boyan was 16，he went diving（潜水）in Greece．He was shocked to see more plastic bags than fish in the sea．The boy made up his mind to clean up the ocean．However，everyone told him that there was nothing he could do once plastic bags went into the ocean．The teenager didn't give up．He spent several months studying plastic pollution．Finally，he came up with a science project using floating barriers（漂浮的栅栏）to collect the waste．That is to say，instead of using nets and ships to collect the plastic bags，the barriers can make the plastic bags come together with the help of natural ocean currents（洋流） and winds．What's more，the collected plastic bags can be recycled and made into products or oil．
Boyan won prizes for the project，but that was not enough for him：he wanted to make it a reality（实现）．In 2013，he set up The Ocean Cleanup．Together with scientists，engineers and volunteers，the young man is working hard to clean up the ocean to make our world a better place．
Would you like to join them？
37．Where did Boyan decide to clean up the ocean？
A In Holland．
B．In Greece．
C．In England．
38．What does"the waste"mean in the third paragraph？
A．The nets．
B．The barriers．
C．The plastic bags．
39．What may be The Ocean Cleanup？
A A group．
B．A club
C．A company．
40．The author writes the passage to tell us ．
A．to clean up the ocean
B．not to pollute the ocean
C．to protect our environment．
Drinking tea is an important part of Chinese culture．It is seen as the national drink in China．The most common types of Chinese tea are as follows．
Green Tea is the oldest and most popular．It has a pale color and a sharp flavor．It is produced mainly in Anhui and Zhejiang．The most popular is Longjing Tea which is produced near West Lake，Hangzhou．
Red Tea （Black Tea） is the second most popular type of Chinese tea．It can help treat stomachaches．Dianhong and Yixing are popular sorts of red tea．
Wulong Tea，also known as blue tea，has the advantages of green and red teas．It has a gentle flavor and can help people lose weight．Tie Guanyin Tea in Anhui and Dongding Wulong Tea in Taiwan are two well﹣known types of it．
Scented Tea （花茶） is created by mixing tea leaves with flowers．It is known by its strong fragrance，and it can help people feel comfortable after drinking．Jasmine（茉莉） tea is the most popular of this kind．
Do you know how to drink tea in a right way？Here are some tips：
•Drink it hot．
•Don't drink too strong tea．
•The best time to drink tea is between meals．
•Drinking tea a couple of hours after taking medicine．
•Green tea is the best choice for office workers．
33． has the longest history and is drunk by the largest number of Chinese．
A．Scented Tea．
B．Green Tea
C．Wulong Tea
34．Red Tea can ．
A．help people keep fit．
B．help people feel lucky
C．help treat illness
35．Dongding Wulong Tea is produced in ．
A．Taiwan
B．Yixing
C．Anhui
36．The right way to drink tea is ．
A．to drink it cold
B．to drink before or after meals
C．to drink too strong tea．