What is the strongest part of your body? Your head? Bones? It’s your teeth! There is a special thing called enamel (牙釉质) in teeth. It is the hardest thing in the human body and keeps bacteria (细菌) away. However, teeth are vulnerable (易受伤害的) to problems and disease. September 20 is National Teeth-loving Day in China. Let’s pay attention to the health of our teeth.
Tooth (1) are (1) around the world. Most children and young adults have tooth decay (龋齿). A study published on China Health Monthly magazine this year showed that 40.74 percent of a sample (抽样) of 1,306 Chinese students under age 15 had decayed teeth.
(2)Food that is rich in sugar increases the risk of tooth decay. After you eat, bacteria go crazy over the sugar on your teeth, like ants at a picnic. The bacteria turn sugar into acids (酸) that eat away at tooth enamel.This cause holes in your teeth.
Another common problem is crooked teeth (龅牙). When your new teeth begin to grow and the old teeth haven’t fallen out, there isn’t enough space for the new ones. This causes crooked teeth.
Don’t worry. Here are some ways to keep your teeth healthy.
Brush at least twice a day – in the morning and before bedtime.
Learn to use dental floss (牙线). The floss gets rid of food that’s hidden where your toothbrush can’t get it.
Visit a dentist. He or she can check if you have any dental problems and help you clean your teeth.
Pay attention to what you eat. It is better to eat lots of fruits and vegetables instead of fries and drink water instead of soda.
Wear braces (牙套) to make your teeth straight and beautiful.
1.在（1）处的空白处分别填入一个适当的词使句意完整、上下文通顺。
2.将（2）句译成中文。
3. 回答问题：How many ways to keep your teeth healthy are mentioned in the passage?
4.在文中找出与 Most kids and young people have decayed teeth.意思相同或相近的句子，并将它写在答题卡上。
5. 在文中找出最能表达该短文主题的句子，并将它写在答题卡上。
Having a teenager at home can be a real headache. Many teenagers smoke, wear strange hairstyle and even fight. Basically (基本上) , they are often taking risks.
Earlier studies have shown that teenagers are more likely to make irrational decisions than people from any other age group, including children and adults. Is it that teenagers are too young to tell right from wrong? Not really. So what’s the reason?
According to Laurence, a teacher from a US university, the reason is that teenagers care a lot about how their peers (同龄人) view them—that is “peer influence”.
As children enter their teenage years, they spend more time with their friends and classmates, and also they care more about what they think of them. This makes teenagers make decisions without thinking about the costs.
In a test, a group of teenagers were asked to play a video driving game. When they played with their friends watching around them, they took more chances and drove more carelessly because that would increase their possibility of winning. But when they played alone, they drove more safely.
Why do peers have such a big influence on teens’ behavior?
As Laurence sees it, a teenager’s brain is like a car with a good accelerator (油门) but a weak brake (刹车). The “accelerator” is fully developed by teenage years while the “brake” is still not fully developed. When teenagers are watched by their peers, they usually push hard on the accelerator. With their weak brake, it is likely that they are going to end up in an accident. But the good news is that a violent (暴力的) teenager doesn’t necessarily become a violent adult. About two-thirds to three-quarters of violent youth grow out of it. “They get more self-controlled.”
1.What does the underlined word “irrational” in the 2nd paragraph mean?
A. Quick.B. Crazy.
C. Careful. D. Correct.
2. Why are teenagers often taking risks according to the text?
A. They like difficult tasks.
B. They don’t care about costs.
C. They are too young to tell right from wrong.
D. They care a lot about what their peers think of them.
3.How does Laurence explain the influence of peer influence on teens’ behavior?
A. By using a metaphor (比喻).
B. By giving examples.
C. By presenting research findings.
D. By performing an in-depth analysis (分析).
4.According to the text, with peers around them, teenagers tend to (倾向于) ______.
A. use more self-control
B. become more careful about what they do
C. perform better than when they are alone
D. focus more on short-term benefits（利益）
5.What can we learn from the text?
A. Teenagers are easy to have traffic accidents.
B. Peer influence is bad on teenagers.
C. Most of the teenagers become less violent when they grow up.
D. Teenagers shouldn’t spend all the free time with their friends.
Taking away a city’s rubbish is a big job. Every day trucks come into a city to collect it. Most rubbish is made up of things we can't eat or use. If we kept these things we would soon have a mountain of rubbish.
In some cities the rubbish is collected and taken outside of city to a dump. Often the city dump is placed where the ground is low or there is a big hole. The kitchen rubbish is broken into small pieces and sent into the sewage system. The sewage system takes away the used water from toilets, bathtubs and other places.
To keep mice and flies away, some earth is used to cover the newly dumped rubbish. Later, grass may be planted on the rubbish-filled land. Finally, a house or a school may be built there, and then you’d never know that this had once been an old rubbish dump.
In other cities the rubbish is burnt in special places. The fire burns everything but the metal. Sometimes the metal can be used again in factories where things are made of metal. The food parts of rubbish are put in special piles where they slowly change into something called humus(腐殖质), which looks like black earth. It is rich with the kinds of things that feed plants and help them grow.
1.Where is the rubbish put after it is taken outside of city?
A. On the mountain B. In the water
C. In low places D. In special places
2.The main idea of the passage is_________.
A. to let us know taking away rubbish is a big job
B. to explain the need for rubbish collection
C. to introduce different ways to treat rubbish
D. to tell people to take useful things out of rubbish
3.The underlined word "sewage" in the passage means_________.
A．排污 B．染色
C．洗涤 D．吸尘
4.According to the passage, the food parts of rubbish can be used again_________.
A. to feed animals B. to feed plants
C. to build a house D. to make machines
5.How should we take care of a used metal box according to the passage?
A. By burning it off.
B. By putting it in water.
C. By throwing it away.
D. By reusing and recycling it.
The world’s greatest detective, Sherlock Holmes, is back on our screens.
The new BBC TV series of Sherlock was broadcast in the UK on Jan 1. But the history of Sherlock dates back 127 years.
Since the creation of Holmes in 1887, he has been taking us on adventures (冒险) one after another.
The Sherlock series is a playful drama, covered in crimes and mystery. It gives us a modern Sherlock for a new generation, who solves cases with the help of the Internet, cell phones and GPS.
People look to Sherlock for both adventure and inspiration (灵感). Each case sends us on a mysterious journey with Holmes. The stories give life and color to our imagination: as he checks the crime scene, we join him and become detectives too, looking out for hidden clues.
Yet Holmes is no Superman. He cannot fly, or turn invisible (隐形的). But his powers are within all of us: reason, logical thinking and paying attention to detail. While an artist’s painting is his art, Sherlock’s art is his intelligence (聪明才智). He is human, and this is what makes Holmes a true hero for all of us.
In the new series of Sherlock, most people thought Holmes was dead. But he returns after two years of hiding in the shadows. Now the whole city of London is in danger. What can Holmes possibly do? Uncover the mystery yourself by watching the new series!
1.Sherlock was created in _________.
A. 2014B. 1973
C. 1887D. 1900
2. From the passage, we learn that Sherlock Holmes _________.
A. invites some of his friends to help him with cases
B. refuses to use modern technology
C. has super powers that helped many people
D. is admired for his intelligence
3.In the new series of Sherlock, Holmes returns after _________.
A. dyingB. getting a special power
C. hiding D. going abroad
4. The writer wrote the passage to __________.
A. compare Sherlock Holmes with Superman
B. explain how Holmes solves cases
C. ask people to learn from Sherlock Holmes
D. explain why Holmes is so popular
5. Where can you probably read the article?
A. TV Guide. B. Science fiction book.
C. Detective stories.D. Travel Guide.
1. Picture 1 is a(n) ________.
A. postcard B. poster
C. invitationD. menu
2. You should reply to the Johnson family by ______.
A. writing an email B. making a phone call
C. visiting them in person D. chatting online with them
3.If you want to eat well, you can’t miss the ________.
A. Dance as a Job LectureB. Musical Theatre Classes
C. Weight Training ClassesD. Sports Nutrition Classes
4.How long will the camp last?
A. Six days.B. Ten days.
C. A week. D. A month
5. If you are a 15-year-old student, what time is your audition?
A. 4:00 pm on Nov 13. B. 4:30 pm on Nov 14.
C. 4:30 pm on Nov 18. D. 4:00 pm on Nov 19.
Tina was a seventeen-year-old girl who always wore a bright smile. She suffered from a disease and had to use a walker most of the time. People didn’t speak to her very often. Maybe it was because she looked and people didn’t know how to come near to her. Tina usually broke the ice with people she met with a big “ .”
In one class, I gave the students an assignment (作业) to a poem. I only made the assignment worth a very small part of their total grade since I knew most of my would not do it anyway. In the class, one by one each student to correctly recite (背诵) the poem. Finally, angry and half joking, I said that the next student who recite the poem had to do three push-up (俯卧撑). To my , Tina was next. She used her walker to move to the front of the class. she recited, she made a mistake. Before I could say a word, she her walker and started doing push-ups. I wanted to say, “Tina, I was just !”But she , continued the poem and she finished the rest perfectly.
When she finished, a student asked, “Tina, why did you do that? It’s not an important assignment!”
“Because I want to be like you guys! To be .” Tina said.
Silence fell on the whole room when another student cried out, “Tina, we’re not normal! We are teenagers! We get in all the time.”
“I know,” Tina said as a big spread across her face. The rest of the students laughed, too.
Tina got only a few that day, but she got the love and respect of her classmates. To her, that was worth a lot more than a grade.
1.A. different B. strong C. short D. young
2.A. Sorry B. Bye C. Hi D. Thanks
3.A. recite B. copy C. find D. read
4.A. friends B. students C. teachers D. parents
5.A. started B. planned C. continued D. failed
6.A. shouldn’t B. couldn’t C. needn’t D. wouldn’t
7.A. surprise B. surprised C. excitement D. excited
8.A. Because B. When C. After D. Though
9.A. raised B. changed C. threw D. checked
10.A. wondering B. tricking C. doubtingD. joking
11.A. woke up B. gave up C. stood up D. made up
12.A. happy B. social C. normal D. fair
13.A. attention B. thought C. touch D. trouble
14.A. cry B. smile C. sadness D. joy
15.A. points B. chances C. mistakes D. successes
