Painful for Your Ears
Do you often listen to music at loud volumes? You should know that this habit is bad for your hearing, according to the World Health Organization (WHO).
The human ear has three different parts. The outer ear is the part you can see. The middle ear and inner ear are inside your head. That doesn't mean those parts can't be hurt. They can be harmed by loud noises. Over one billion young people are at risk of hearing loss due to listening to loud noise for long periods of time, said WHO. Listening to music or watching a TV show at loud volumes can harm your hearing.
Sounds are measured in decibels (dB分贝). A whisper is 30 dB. A friend talking is about 60 dB. The sound of a busy road is about 85 dB and the sound of a rock concert can be about 100 dB. The United Nations has standards for safe listening. It is not safe to listen to sounds that are louder than 85 dB for eight hours or 100 dB for 15 minutes.
Loud noise is harmful to the inner ear. Most of us are born with about 16,000 hair cells (听毛细胞) in our inner ears. These cells detect (探测) sounds. However, listening to loud noise for a long time can make these cells work too hard and cause some of them to die. This is what causes hearing loss.
Some people might think that their music isn't all that loud. But this can depend on where you are. For example, if you are in a noisy place like the subway, you might turn up your music too loud without realizing it. Later, when you listen to it the same volume in a quiet place, you might feel uncomfortable.
What can be done to protect your hearing? Use noise-canceling (降噪) headphones. These headphones get rid of background noise. You don't need to turn up the volume as much. Keep your device volume at 50 to 60 percent. Limit daily use of headphones. Listen to sound on your mobile devices for a maximum of one hour per day.
The less loud noise you hear, the better!
1.Listening to loud music causes hearing problems because_______.
A.it can stop our ears from resting
B.it puts our brains under great pressure
C.it can cause hair cells in the inner ear to die
D.it makes people get used to listening to loud sounds
2.From paragraph 5, we can know_______.
A.people love to listen to loud music
B.people don't always know how loud their music is
C.it's great to listen to music on the subway
D.it's reasonable to listen to loud music in some places
3.The writer probably agrees that _______.
A.people have to wear headphones while walking on a busy road
B.listening to music on TV is better for hearing than on mobile devices
C.young people should set a time limit of listening to music at loud volumes
D.wearing noise-canceling headphones can stop the outer ears being harmed
八年级英语阅读单选中等难度题查看答案及解析
The Paper Boy
Before I could turn 10, I had lost my parents. To support myself and my education, I began to deliver newspapers.
I would get up every morning at 5 am and walk five kilometers from Hydery to the newspaper office in Bazar. By 6 am, I would collect 50 copies of newspaper which must have weighed over five kilos. After delivering them, I would rush home, another three kilometers away, cook my breakfast, eat quickly and go to school.
One morning, I found a boy of my age at my doorstep. He introduced himself as Jimmy and said his parents wanted to see me. I guessed they wished to subscribe to (订阅) the newspaper, so I followed him to his place nearby.
Jimmy's mother opened the door. She served me a large plate of snacks and fruit salad. It was a rich breakfast, one that brought back memories of the happy time with my parents. As I was about to leave, Jimmy's father, Mr. Kader, appeared with a new bicycle.
"This is for you!" He said, patting my shoulder.
"But I have no money!" I replied.
"Who is asking you to pay for this, my son?" He continued.
It took me a few seconds to sense the warm moment. I didn't even realize my tears were rolling down my face. Jimmy's mother held me closely. It was like home, as if my mother were there.
I bowed, thankfully, and left. This time, I didn't have to walk—I had the bicycle!
The bicycle saved my life for many years thereafter and taught me a lifelong lesson: Help should always be need-based.
1.How did the writer support himself?
A.By selling the newspaper. B.By collecting newspaper. C.By delivering newspaper. D.By printing the newspaper.
2.Jimmy's parents asked the writer to their home because _______.
A.they wanted him to buy snacks B.they wanted to help him C.they wished him to be their son D.they wished to thank him
3.To the writer, the bicycle was _______.
A.the tool of his childhood
B.the symbol of the friendship
C.something that made him recall his mum
D.something that got him out of difficulties
八年级英语阅读单选中等难度题查看答案及解析
Peking Opera ·Do you like Peking Opera? Come and join us. ·At 8:30 am every Sunday ·At the Red Star Theater ·Tickets are free | Blue Sea Hotel ·Two restaurants (24 hours) ·Swimming pool ·Double room: 180 yuan/night ·Single room: 220 yuan/ night |
Fashion Week ·At 3: 00 pm May 12 ·At the White Cloud Cinema ·Price: 200 yuan each person ·Models come from China, Russia, Italy and Japan | Welcome to Our Food Festival ·Time: 3:00 pm-7:00 pm Saturday, April 16 ·On the playground of No. 5 Middle School ·Help raise money to plant more trees |
1.Where can we enjoy Peking Opera?
A.At the Red Star Theater. B.At the Blue Sea Hotel. C.At the White Cloud Cinema. D.At No. 5 Middle School.
2.We can enjoy the show at Fashion Week _______.
A.at 8:30 am every Sunday B.at 3:00 pm May 12 C.at 7:00 pm on April 16 D.at any time on May 12
3.The food festival is being held to raise money to _______.
A.help sick children B.plant more trees C.help build restaurants D.buy food for poor kids
八年级英语阅读单选简单题查看答案及解析
Valuable Gifts
When my mother told my father she was pregnant (怀孕), the first thing he did was to buy a TV. It was 1957 and TVs were new technology. He thought that with a baby, they would go out less and he would need to find entertainment at home.
That was the first _______ he gave me.
But when I think of other gifts my father has given me, the first would be a love of _______. He is always found reading in our study. He has been totally deaf in one ear since he was two, so we rarely listened to music. In my childhood, storybooks were king, not songs.
The second is _______ all. He treats everyone the same—CEO or cleaner, child or adult. Even when I was little, the conversation around the dinner table was noisy but adult-level. He always said my age didn't matter. If I voiced an opinion, I had to argue the case and give evidence (证据).
The greatest gift to me, however, was that he took interest in my _______ and never my looks. Most successful women had fathers who_______ their intelligence. My father said that my mother was the most intelligent person he had ever met. He still says that.
They met at a dance in the early 50s when she was a teacher. Wanting to show off, he told her she reminded him of Jane Austen's Emma, then misquoted (错误地引用) the book. My mother _______ corrected him and he was in love from that moment.
Over the years, my father taught me never to stand _______ and never to accept the way things are; I should find for change. I will continue to follow his _______.
1.A.book B.toy C.doll D.gift
2.A.writing B.reading C.singing D.dancing
3.A.respecting B.choosing C.changing D.facing
4.A.hope B.hobbies C.success D.brains
5.A.required B.accepted C.valued D.dreamed
6.A.hopefully B.nervously C.politely D.proudly
7.A.still B.quiet C.silent D.calm
8.A.idea B.lead C.plan D.advice
八年级英语完型填空中等难度题查看答案及解析
My aunt is a worker. She _____ in this factory for 20 years.
A.works B.worked C.is working D.has worked
八年级英语单选题困难题查看答案及解析
Steve _____ us if he comes to Beijing next month.
A.visits B.visited C.has visited D.will visit
八年级英语单选题中等难度题查看答案及解析
—What is your father doing, Mike?
—He _____ in the garden.
A.waters B.watered C.is watering D.has watered
八年级英语单选题简单题查看答案及解析
—Where did you go last weekend?
—I _____ to the Beijing Expo Park.
A.go B.went C.am going D.has gone
八年级英语单选题困难题查看答案及解析
—_____ you sing an English song?
—Yes, I can.
A.Can B.May C.Must D.Need
八年级英语单选题困难题查看答案及解析
—Which do you like_____, swimming or skating?
—Swimming.
A.good B.better C.best D.the best
八年级英语单选题简单题查看答案及解析