Look closely at your hands. Are they clean? It doesn't matter how many times you wash your hands, tiny microbes (微生物) still stay on them. But don't worry. Most microbes don't harm you.
Now scientists say the microbes on our hands cou
ld be used in a surprising way; fighting crime, According to a recent survey microbes as well as fingerprints(指纹) could be used to indentify the criminal.
Everyone has his own set of microbes on the hands. That is to say, if you and your best friend were able to see and compare all the microbes on your hands, your hands probably would look different. Some microbes only show up on your hands while others live only on your friend's hands.
When you work on a computer you leave the microbes from your hands on the keyboard. The scientists can easily tell the owner of the keyboard by looking at the microbes on it. Even if you don't leave your fingerprints behind, your microbes may give you away.
Noah Fierer, a scientist, says. "You can only clean a fingerprint, but you can't sterilize (使无菌
) a surface j
ust by wiping(擦) it off," He says that scientists have a lot more work to do before the microbe is used as a useful tool.According to the passage,_______ could be used to identify the criminal.
| A．fingerprints | B．scientists' hands |
| C．microbes | D．fingerprints and microbes on people's hands |
Paragraph 3 tells us that________.
| A．our hands look similar | B．the microbes will make the keyboard dirty. |
| C．we should compare hands often | D．we have our own sets of microbes. |
When you work on computer, the microbes________.
| A．just stay on our hands | B．also stay on the keyboard |
| C．will do harm to you | D．will disappear |
From Noah Fierer we know that________.
| A．fingerprints are no longer useful in fighting crime |
| B．microbes can be found on everyone's hands. |
| C．unlike microbe fingerprints can be cleaned if people wipe them |
| D．the microbe is used as a useful tool |
What’s the best title of the passage?
| A．Microbes May Tell Who You Are | B．Scientists Say Everyone Has Microbes |
| C．Noah Fiercer Does Research Into Microbes | D．Fingerprints Help Catch Cr iminals |
There was a famous church(教堂) in London. It was 110 meters high. The center of the church was like a bell. The ceiling of the church was painted by a famous artist. A platform (平台) was built so that the artist could put up a ladder on it and paint the ceiling. The platform was about 70 meters over the ground.
One day the artist was working hard and had nearly finished one popular corner of the ceiling. Also on the platform was his assistant（助手）, who was mixing paints. The artist stepped back so that he could see how his work was doing. To have a better look at his painting, he stepped back again. Suddenly, his assistant shouted, picked up a small bowl of paint and started to paint the artist's work on the top. The artist was very angry and rushed forwards to stop him.
“What do you think you are doing?” he shouted angrily. “Are you mad(疯的)?” His assistant replied, “I saw you walking backwards to have a better look at your painting. But you didn't notice that you had reached the very edge(边缘) of the platform. You were in great danger. I wanted to make you move forwards. If I had not made you run forwards, you would have fallen backwards off the edge of the platform.”
The story happened in _______.
| A．America | B．England | C．Germany | D．France |
Why did the artist step back again?
| A．To have a better look at his painting. |
| B．To see how his work was doing. |
| C．To paint a bowl in his painting. |
| D．To pour some paint on his painting. |
What did the assistant do to stop the artist falling off the platform?
| A．He ran forwards to stop him. |
| B．He stopped mixing the paints. |
| C．He painted a famous painting himself. |
| D．He shouted to the artist and painted his painting. |
Which picture shows the same situation as the underlined sentences in Paragraph 2?
Note: a: artist; b: assistant; c: painting; ←: the direction of the movement
| A． | B． | C． | D． |
After reading the passage, what do you think the artist would probably do?
| A．He would be angry with what the assistant had done. |
| B．He would be thankful to the assistant for having saved his life. |
| C．He would punish the assistant for having destroyed (毁坏) his painting. |
| D．He wouldn't allow the assistant to work with him any more. |
Let’s Explore (探索)The Nature!
Are you interested in animals and nature? Want to enjoy your summer holiday and learn something interesting and useful?
Here comes your chance! Youth Explore has prepared you with a THREE-DAY SUMMER PROGRAM! You can take part in many activities and meet with live animals, such as giraffes, pandas, tigers, and so on! More information about the program is as follows:
Age: Students aged 8~16
Groups: There are 2 programs for you to choose from. Each program needs at most 15 students.
| Program A Dates: 14 ~ 16 July, 2014 Days: Monday to Wednesday Time: 10:00 a.m. ~ 4:00 p.m. |
Program B Dates: 5 ~ 7 August, 2014 Days: Tuesday to Thursday Time: 10:00 a.m. ~ 4:00 p.m. |
Program cost: $230 for members; $250 for non-members
How to do: Simply come to our centre to get an application form. Send your completed form on or before 11th July, 2014 (Friday).
Notes:
1. No free lunches are provided because of personal food differences. You may either bring a lunch-box or pay for lunch at our restaurants.
2. Both programs will start 1 day later if there is a warning of rainstorms.
COME AND JOIN US NOW! DON’T MISS THE CHANCE! ________can join the three-day summer program.
| A．A kid of 7 | B．A boy of 14 |
| C．A girl of 17 | D．A man of 26 |
If there is a rainstorm on 14th July, program A will start on _________.
| A．Sunday | B．Monday | C．Tuesday | D．Wednesday |
Two members and one non-member should pay ______ for the program.
| A．$690 | B．$710 | C．$730 | D．$750 |
Free lunches aren’t provided because ______.
| A．the lunches cost too much |
| B．people have different tastes |
| C．there are many restaurants |
| D．they may bring lunch-boxes |
What can we know from the passage?
| A．Youth Explore is the name of the program. |
| B．More than 15 students are in each program. |
| C．We can see three kinds of animals in the program. |
| D．You need to hand in an application form for the program. |
Camilla Chomp was a strange little girl．She liked to spend her time alone eating chocolate．Her parents were worried，so they took all the chocolate away．
Camilla left her house to look for some chocolate．She found a small house full of bottles．Among the bottles，a blue bottle caught Camilla’s eyes．It was full of chocolate．In the bottle there was also a card with the words“Change tears（眼泪）into chocolate．”
Camilla was very excited．She ran out of the house with the bottle to look for someone crying．First，she met a little boy crying hard and collected his tears．The tears were quickly changed into chocolate．While Camilla was collecting the tears，she comforted the boy．Finally，the boy stopped crying and they had a good time together．
Later，Camilla met a woman and an old man crying．The woman had broken some bowls．And the old man’s dog had just died．Camilla collected their tears and made them happy again．
Soon，Camilla knew that making people happy was much more important than finding chocolate．So she stopped collecting tears and began to help sad people．As a result，she had many friends and had a happy life．Camilla liked to________．
| A．eat chocolate |
| B．read books |
| C．collect coins |
| D．eat fruit |
Camilla’s parents took away all the chocolate because they were________．
| A．happy |
| B．angry |
| C．worried |
| D．hungry |
What caught Camilla’s eyes?
| A．A nice card． |
| B．A black dog． |
| C．A red cup． |
| D．A blue bottle． |
The old man was crying because________．
| A．he had broken some bottles |
| B．he couldn’t find his way home |
| C．he couldn’t find his daughter |
| D．his dog had just died |
How many people did Camilla help before she stopped collecting tears?
| A．One． |
| B．Two． |
| C．Three． |
| D．Four． |
Spring Clean－up Day 2014，Rockland
what better way to welcome spring than by helping to clean up the town we all live in!Here in Rockland we have it Spring Clean－up Day every year in April．The Clean－up Day 2014 will be on April 20th．
It will start with a town clean－up at 8 o’clock in the morning，and a tree planting activity at the Rockland Park is to follow in the afternoon．One thousand young trees are sure to make the park greener and prettier．
We will divide the people coming to help into eight team for eight different areas．As usual，we will provide gloves，rubbish bags and other cleaning tools．You will also get free lunches and T－shirts when the clean－up ends at noon．We are going to have a friendly competition to see which team can pick up the most rubbish．
Bring your kids with you．It is a great chance to teach them to care for the environmem around us．We have free drinks and cbocolate candies for the children at the park．
Meeting：At the gate of Rockland Park，the town hall at 330 Jones Street，or the corner of Palace Street and North Street．
Sign－up（报名）：Call 5862397 on weekdays，of visit our website below any time you like．
www.springcleanup.comThe Spring Clean－up Day in Rockland is held________．
| A．once a month |
| B．twice a month |
| C．once a year |
| D．twice a year |
People in Rockland can help to________on the afternoon of April 20th．
| A．clean up the town |
| B．take care of the kids |
| C．plant trees in the park |
| D．paint the park greener |
People joining in the Clean－up Day will NOT________．
| A．get lunches and T－shirts for free |
| B．be provided with cleaning tools |
| C．work in teams to do the cleaning |
| D．take young trees home to plant |
According to the poster，the activities are a great chance to teach the kids to________．
| A．protect the environment |
| B．get free drinks and candies |
| C．pick up the most rubbish |
| D．do cleaning and plant trees |
Which of the following is TRUE?
| A．You can call 5862397 to sign up any time you like． |
| B．People can visit www.springcleanup.com to sign up． |
| C．The town hall is at the corner of Palace Street and North Street． |
| D．People can meet for the activities only at the gate of Rockland Park． |
Most American children eat potatoes every day，but they do not know which part of the potato is the most nutritious（营养）．Take a sharp knife and cut a very thin slice（一片）from it and hold it to the light，you will see that the potato has skin（皮），an outside rim（外缘）and the inner part．The outside rim which is right under the skin is the most nutritious．But this part is often thrown away with the skin．Even the skin itself is better for food than the inside．When eating a cooked potato．if you choose the inside and leave the outside，you are wasting（浪费）the best part of it．If you can’t eat the whole potato，it is better to eat the outside rim and leave the inner part．How many parts does a potato have?
| A．Only one． |
| B．Two． |
| C．Three． |
| D．Four． |
Which of the following is the most nutritious part of the potato?
| A．The middle． |
| B．The skin． |
| C．The outside rim． |
| D．The inside． |
In fact，the skin is________．
| A．not good at all |
| B．better than the inner part |
| C．better than the outside rim |
| D．as good as the outside rim |
If you can’t eat the whole potato，you’d better eat________．
| A．the skin only |
| B．the part right under the skin |
| C．the inner part |
| D．the part outside the rim |
This passage mainly tells us________．
| A．what is a potato made up of |
| B．when to cook potatoes |
| C．how to cut potatoes |
| D．how to eat potatoes |