①Chemistry is everywhere in our daily life.Sometimes it's easy to see.At other times，it can be very hard to see the everyday chemistry at work，but nearly everything you touch has some chemicals（化学物质） in it.
②Chemistry helps to make products for use.Something as simple as toothpaste has at least three chemicals that keep your teeth clean.Other things in your daily life are created by chemistry，such as hair products and soap.Without chemistry，we would never have known that we need soap to get the oil out of clothes.
③Chemistry also helps us understand the world around us.Thanks to chemistry，we know bleach （漂白剂） can't be mixed with vinegar （醋），because the mixture can produce harmful gas.
④Chemistry plays a big role in food preparation.Cooking food causes it to go through a chemical change.That is why cooked food often tastes different from uncooked food.Too much or too little of any chemical material makes a difference to the result of baking （烘焙）.For example，the cake can be too soft or too hard.
⑤Chemistry isn't something that just lives in a laboratory，it's something that you meet hundreds of times in life.Knowing how chemistry works will give you a greater understanding of the life.
（1）What can the chemicals in toothpaste help us？
| A． |
To keep the teeth clean. |
| B． |
To make the teeth strong. |
| C． |
To clean the oil off clothes. |
| D． |
To make the clothes new. |
（2）From the third paragraph，we know that .
| A． |
we can mix bleach with vinegar |
| B． |
the mixture can produce useful gas |
| C． |
we can't mix bleach with vinegar |
| D． |
chemistry can't help us make products |
（3）The fourth paragraph mainly tells us that .
| A． |
cooked food isn't as good as uncooked food |
| B． |
chemistry plays a big role in food preparation |
| C． |
there are no chemical changes while we are cooking |
| D． |
the cake can't be too soft or too hard with chemistry |
（4）Which of the following shows the structure （结构） of the passage？ （①＝ Paragraph 1）
| A． |
|
| B． |
|
| C． |
|
| D． |
|
（5）What's the main idea of the passage？
| A． |
Chemistry and food. |
| B． |
Chemistry around the world. |
| C． |
Chemistry and products. |
| D． |
Chemistry in everyday life. |
Mr. King worked in a factory. He liked playing soccer and spent much time on it, so he was sometimes late for work. His boss was so angry that he fired Mr. King. Mr. King couldn't find another job. 
Fin
ally he got into trouble and lived a difficult life.
One of his friends felt sorry for turn and introduced him to a headmaster, whose school was just in need of swimming coach (教练). Mr. King began to teach the school children to swim. He wasn't a good coach. Two months later, the children learned nothing. Few of them could swim.
It was a hot Saturday. The children wouldn't stay in the classroom and wanted to swim in the river. Mr. King failed to stop them. Before they started, he drew a red line below the knee of each child. He said to them, "Come out of the river at once if the water reaches the line."Why did the boss fire Mr. King?
| A．Because Mr. King didn't like his job, |
| B．Because Mr. King was ill. |
| C．Because Mr. King talked too much. |
| D．Because Mr. King was sometimes late for work |
Mr. King couldn't find another job and his life was_.
| A．happy | B．hard | C．relaxing | D．free |
Who helped Mr. King find a job in a school?
| A．The boss of the factory. | B．His friend. | C．The school children. | D．Nobody. |
Two months later, the children learned nothing because_.
| A．Mr. King taught them to play soccer | B．they didn't like swimming at all |
| C．they were afraid of water | D．Mr. King was a poor coach |
Mr. King _____, so he dr
ew a red line below the knee of each child.
| A．didn't want the children to swim |
| B．wanted to make the children look funny |
| C．wanted to make the children happy |
| D．wanted to help the children swim better |
Conor Grennan was unwilling to be a volunteer(志愿者). The 29-year-old American was not sure if he had the skills or a strong feeling for it.
However, he went to work at an orphanage(孤儿院) in Nepal. His first thought was to make people impressed.
"I thought that if I volunteered just once. I could retell the story over and over," Grennan said in a Huffington Post article.
However, his three-month stay it the orphanage turned into in unusual experience. It was 2004 and Grennan had given up his job to begin a year-long around-the-world trip, His first three months were spent in Nepal.
When he arrived in the village, he knew nothing about the children or the local culture. When he opened the gate of the Little Princes Children's Home, he was faced by the excited children.
The young American ended up caring for 18 children. He later discovered that they were trafficked(被拐卖的)children. So he walked through the mountains with great difficulty to find the kids' families, "I started walking with photos of the kids." he told the Reuters reporter. "I would show up in villages and show photographs around. I went with 24 photos, and I found 24 families."
At the same time, he put his heart into Nepalese culture.
Grennan said, “Volunteering is the single best way to see how the rest of the world lives.”
He also encouraged others to do what he had done. He believes that volunteering needs only making decisions to show up.
Grennan's fight against child-trafficking has changed him. His book, Little Prince, came out last week. At first, Grennan simply wanted to _______by volunteering in Nepal.
| A．write travel stories | B．learn the skills |
| C．help the kids there | D．impress people |
When Grennan came to the Little Princes Children’s Home. _______.
| A．18 children were ill in bed | B．the children there felt excited |
| C．he decided to give up his job | D．he’d lived in Nepal for a year |
From the passage we can learn that Grennan _______.
| A．found the kids’ families easily | B．was good at taking pictures |
| C．wrote the book Little Princes | D．asked others to go to Nepal |
Which is the best title for the passage?
| A．Volunteer changes a lot | B．Volunteer is with the kids |
| C．Volunteer becomes a writer | D．Volunteer travels in Nepal |
Sitting on exercise balls brings more than a smile to students and teachers.
Some fourth-graders at Conrad Weiser West Elementary School in Womelsdorf love their new chairs-—probably because they're not really chairs at all.
The kids are sitting on the air-filled balls. But different from those just for exercise, these have small legs that keep them from rolling. Sitting on a chair all day in school can make anyone want to move around. So, more and more teachers are letting students have a ball. By using exercise balls instead of common chairs, teachers find students' posture(姿势) and attention improved.
Dotti Pownall, a fifth-grader teacher in West Virginia, has been using balls as chairs since December 2008. "The students love them." she says. Pownall took a survey of her students. She found that 80 percent, thought sitting on the balls helped them concentrate(专注) better:
"Besides, they’re fun,b" says Pownall.
According to WittFitt,b a company that has sold balls to more than 200 schools, they can improve kids' posture and classroom behavior.
Exercise ball chairs are getting popular in classrooms, from preschool to college. Some adults (成人) even use them at work.
Lisa Witt felt so stro
ngly about the use of balls as chairs that she started WittFitt. She said the company not only encourages the use of balls but also educates teachers and students on how to use them. "We sell balls in 24 s
tates in America, three provinces in Canada and Japan." says Witt.Sitting on exercise balls can______.
| A．improve students' attention | B．make students smarter |
| C．keep students moving around | D．help students become fit |
According to the passage, the company WittFitt______.
| A．began to produce balls in 2008 | B．sells balls in 24 countries |
| C．was set up by Lisa Witt | D．is famous around the world |
It can be seen from the passage that ______.
| A．exercise balls have no legs | B．Pownall works as a teacher |
| C．students hate exercise balls | D．exercise balls are filled with sand |
The passage mainly tells us about______.
| A．the shape of exercise balls | B．the use of exercise balls |
| C．the number of exercise balls | D．the inventor of exercise balls |
When I was a girl of 10, I joined the school cross-country team and practiced twice a week, on the 1,8-km course I'd never really run before and I thought the course would be easy. It was a real shock I ran out of breathe(喘气)within the first few minutes. I never realized how tiring running could be but I didn’t t think about give up.
Over time,I did get a little bit faster. However, I was really slow. In races, I would finish close to last. I'd always have to stop more than once, especially in the longer races, which were 2. 5 to 2. 8 km. After every race, I'd go home and cry. But 1 still didn't stop running, holding onto that picture of crossing the finishingline and finally doing well.
Then one of my friends joined the team, too. She could run easily and even came in the 18th in a big race! I felt so slow and my confidence(自信) was lower than ever. I became so nervous when I thought of the races that I wanted to give up badly.
Still. I refund to. Finally. 1 realized that the reason I was to nervous was that I was always worried that I wasn't ready for them. So a few weeks before the next 2. 8-km race. I practiced running almost 3 km every day. which helped me improve my pace(步伐).
When the time came for the big race, all that practicing really paid off. I stopped only once and my pace was so much better.
I realized that I’d finally gotten happiness with running. But the funny thing was. It didn't come from doing better, Instead, it came from the fact that I hid tried harder and never given up. Before she took the 1.8-km course, the writer________.
| A．knew a lot about it | B．wanted to be a great runner |
| C．practiced running every day | D．never thought running so tired |
The writer was nervous about the race because she_______.
| A．had to stop to drink water | B．was worried she wasn’t ready |
| C．run slower than anyone else | D．could find no coach to help her |
The underlined phrase "paid off" probably mean “______”.
| A．brought good results | B．coat a lot | C．saved much time | D．came to fail |
It can be inferred(推断) from the passage that the writer______.
| A．got angry with her friend | B．wasn't pleased with herself |
| C．was a person with a strong mind | D．had no Interest In running |
Welcome to Phillip Island Nature Park and the penguin Parade(企鹅列队). You will see the world’s smallest penguins— the little penguins appearing from the ocean and crossing the beach to their home in line. It's a natural experience. Remember the Little penguins are wild. You are a visitor to their home.
Making the most of your visit
Here are some helpful hints(提示) ：
●The Penguins Parade last 50 minutes from the time penguins first cross the beach.
●Dress in warm clothes, for the Paradeis in the open air on the beach.
●It is best to get down to the beach at least 15 minutest before th
e parade begins.
Protecting the Penguins
We do have some simple rules—designed to protect the penguins and make your visit more enjoyable.
●Photography—including video cameral is not allowed. Photography during the Parades. Make sure that your cameral is placed inside your bag, or in a bag provided, before walking down to the beach, Photographs can be bought at proper price in the gift shop.
●Smoking is not allowed anywhere.
●And remember, the penguins are wild birds so please don't try to touch them.During the Penguin
Parade, people________.-
A. are allowed to smoke B had better wear warm clothes.
C. have to hand in their bagsD. Can take photos of the penguinsWhich of the following statements is WRONG?
| A．The Little Penguins go back home in line. |
| B．The whole Penguin Parade lasts 50 minutes. |
| C．People have a chance to touch the penguins. |
| D．The Penguin Parade takes place on the beach. |
The passage is written mainly to________.
| A．help make people's visit more pleasant |
| B．introduce the life of the Little Penguins |
| C．welcome people to Phillip bland Nature Park |
| D．encourage people to protect the Little Penguins |
