Like many other natural disasters, floods can happen with no warning. They move quickly, pull trees out of the ground, destroy buildings and hurt people.
Being caught in a flood is dangerous, not only because there is so much water and it’s moving quickly, but also because of what the water is carrying. Debris (残骸) in the current can injure anyone in the floodwater, making swimming more difficult. To survive a flash flood, keep the following things in your mind.
If a flood warning is issued, try to find a shelter immediately. Never try to walk, swim or drive through floodwaters.
Avoid bridges that cross rapidly moving water, as floodwaters can cause bridges to break.
Stay inside a car that is trapped in fast-moving water. Only get out if the water begins to flood the car, and then move to the roof of it.
Avoid power lines. A knocked-down power line can cause surrounding water to become charged, leading to injury
Listen to the broadcast for further instructions before getting away from the flood successfully.
The results of a flood can be just as deadly. It can cause power failure and traffic jams, and break down communication. In addition, it may not be possible to deliver food and water to the flooded area. After the flood, return to your home only after local governments have said it is safe to do so. Use bottled or boiled water for drinking and cooking. And avoid driving through flooded areas and walking alone outside at night.
1. When a flash flood happens, you should _______.A.try to walk, swim or drive through floodwaters |
B.choose the bridges that cross rapidly moving water |
C.get out of a car that is trapped in fast-moving water |
D.avoid power lines |
A.The car. | B.The bridge. |
C.The house. | D.The power line. |
A.go back to your home quickly | B.use bottled or boiled water |
C.drive through flooded areas | D.walk alone outside at night |
A.A diary. | B.A story book. |
C.A newspaper. | D.A travel guidebook. |
相似题推荐
【推荐1】How to improve your homework
Homework is an important thing in your school life. You are also troubled by the homework.
Write it down.
Create a homework station. Find somewhere comfortable and quiet to do your homework.
Do homework as early as possible. Don’t leave homework to the last minute.
Treat yourself. You can easily get tired by sitting through an hour or two of homework without stopping. Once you finish homework for a subject, take a small break. Just make sure it’s short (no more than 15 minutes). Do not turn on the TV, or you’ll never go back and finish your homework. After short breaks, return to finish the rest of your homework.
A.Use your time wisely. |
B.Start as soon as you get home. |
C.Start with your hardest homework. |
D.Never do your homework in front of the TV. |
E.You can take a walk or find something to eat. |
F.Here are the best ways to finish your homework. |
G.Keep a homework notebook where you record all your homework. |
【推荐2】How to Teach Confidence
While it might seem like some people are just born confident, confidence is largely an acquired skill. It’s something you can model and teach other people.
If you’re trying to improve someone’s confidence, be a model for how they should behave in a confident way. Act confident around them and in your interpersonal interactions. Show them confident interpersonal relations like eye contact, handshakes, and making small talk. This lets them practice in a safe environment.
Praise small accomplishments to raise a person’s self-worth.
If you’re trying to build someone’s confidence, start small. Each accomplishment they complete is a cause for celebration, even if it seems small. Be happy for your friends, kids, or students.
Give specific praise so people know what they did well.
Start with a positive statement before correcting something.
You may have to point out where someone needs to improve. This is especially important if you’re a parent, teacher, or coach.
A.Model confident behavior for people |
B.If you do have to make criticisms or corrections |
C.A specific praise is better than a simple “You did well” |
D.Instead of feeling criticized, the person will know you’re sincere |
E.You might show someone’s strengths to help them see the bright side |
F.Your positive energy will teach them to celebrate their achievements |
G.Start by building up their self-esteem, independent thought, and positive self-talk |
【推荐3】Talking to children about disasters
Natural disasters are terrible events. They are difficult for adults and children. But adults should not be afraid to talk to children about natural disasters.
First, adults should be willing to talk with children. When children are allowed to talk about their fears, they feel safer. Sometimes, the best thing an adult can do is just listen.
Second,
Third, it is important to wait until a child is ready to talk about a natural disaster. Adults should not force children to talk.
Fourth, help children feel safe.
Fifth, use activities to help children communicate their fears. Heshani was 13 when the Indian Ocean tsunami (海啸) ruined her house in SriLanka. One year later, she was still living under the shadow (阴影) of the natural disaster. She did not like to visit her ruined house. And she did not want to talk about the problems her family had. However, she loved to write.
A.let children ask questions. |
B.There are many ways to do this. |
C.Talking cannot stop natural disasters from happening. |
D.learning is of great importance to adults. |
E.We should feel safe first. |
F.Whatever the fear is, it is important to listen and be patient with the child. |
G.And she often shared her feelings about the tsunami in her poems. |
【推荐1】A terrible storm destroyed fourteen homes. Seven others were so badly damaged that their owners had to leave them, and fifteen others had broken windows or broken roofs. One person was killed, several were badly hurt and taken to the hospital, and a number of other people received smaller hurt. Altogether over two hundred people were homeless after the storm.
A farmer, Mr Tan, said that the storm began early in the morning and lasted for over an hour.
“I was eating with my wife and children,” he said, “when we heard a loud noise. A few minutes later our house fell down on top of us. We tried our best to climb out but then I saw that one of my children was missing. I went back inside and found him safe but very frightened.”
Mrs Woo said that her husband had just left for work when she felt that her house was moving. She ran outside at once with her children.
“There was no time to take anything,” she said. “A few minutes later, the roof came down.”
Soldiers helped to take people out of the flooded area and the welfare department brought them food, clothes and shelters.
1. How many homes altogether were damaged in the storm?A.Fourteen. | B.Twentyone. |
C.Twentynine. | D.Thirtysix. |
A.He was in bed. |
B.He was inside the house. |
C.He was outside the house. |
D.He was on the roof. |
A.her husband knew there would be a storm |
B.they were all outside the house when the storm came |
C.she felt the house was moving and ran outside at once with her children |
D.the welfare department helped her |
【推荐2】Do you know how to prepare for and survive a major earthquake? According to Department of Conservation scientists, it is important to have the right answer to that question.
How to Be Prepared
Electricity, water, gas (煤气) and telephones may not be working after an earthquake. The police and fire departments are likely to be tied up. You should be prepared to fend for yourself for at least three days, preferably for a week. You’ll need food, water and so on. It’s also a good idea to decide ahead of time how and where your family will reunite if separated during a quake. You might choose an outofthearea friend or relative that family members can call to check on you.
If you’re indoors, stay there. Get under a desk or table. The kitchen is a particularly dangerous spot. If you’re in an office building, stay away from windows and outside walls and do not use the elevator. If you’re outside, get into the open. Stay clear of buildings, power lines or anything else that could fall on you. If you’re driving, move the car out of traffic and stop. Avoid parking under or on bridges or overpasses.
After an Earthquake
Check for fire. If you smell gas, shut off the main gas valve(阀). If there’s sign of damage to electrical wiring, shut off the power at the control box. If the phone is working, only use it in case of emergency (紧急情况). Avoid driving if possible to keep the streets clear for emergency vehicles. Be careful that things may fall out of cupboards when the door is opened, and also that chimneys can be weakened and fall with just a touch. Listen to the radio for important information and instructions. Remember that aftershocks, sometimes large enough to cause damage in their own right, generally follow large quakes. If you leave home, leave a message telling your friends and family your location.
1. The underlined phrase “fend for” in the second paragraph probably means “_______”.A.look for | B.take care of |
C.be proud of | D.think of |
A.You should stay away from the kitchen. |
B.You should drive on a bridge. |
C.You should turn off the power. |
D.You should listen to the radio frequently. |
A.Because it is dangerous to drive as there will be aftershocks. |
B.Because your car will be easily damaged in the streets full of blocks. |
C.Because you should make way for emergency vehicles. |
D.Because you can’t find a place to park your car. |
A.The local people’s life will return to normal in a week. |
B.There will be more earthquakes occurring. |
C.There won’t be any earthquakes in a short time. |
D.The local people will stay at home waiting for help. |
【推荐3】When the tornado (龙卷风) passed, Lewis returned to her house after that awful night, and the Bible was the first thing she looked for. She had bought it 35 years earlier, at the start of her marriage. Like many folks, she’d used it to preserve the family’s history: decades-old photos, newspaper obituaries (讣告) of loved ones, a handkerchief from her great-grandmother, even a piece of a scarf her uncle bad brought back from the Korean War.
The Bible was not where she d last seen it, on top of an antique dresser in her bedroom. The only thing left was the solid pieces of marble that had been on the top of the furniture. After an hour of searching, one of the volunteers ran up to her and found the bible while clearing through ruins. She had tears streaming down her cheeks. It had flown about ten feet from the dresser. Surprisingly, while many books had been destroyed beyond recognition, the Bible was still intact, even though it had sat in the rain for days. “It was a miracle,” says Lewis.
A few of the Bible’s treasures did go missing. Yet ever so slowly, they, too, began reappearing in Lewis’s life. Days after the Bible was found, volunteers discovered one of the newspaper obituaries outside the home. Two weeks later, a neighbor found another newspaper clipping (剪辑) by her house. “It was a shock,” say Lewis.
Now the Bible already has its well-deserved place of honor, on the dresser. She knows that while every good book tells stories of disastrous weather and unlikely survival, this one actually lived it.
1. Why was the Bible the first thing to look for?A.It is a book telling good stories. |
B.It was a valuable gift for her marriage. |
C.It records her family’s trees and history. |
D.It keeps things recalling family’s stories. |
A.Unfolded | B.New |
C.Undamaged | D.fragile |
A.The Bible Beats a Tornado. |
B.The Bible Blesses Lewis’ Family |
C.Antique Treasures Are Never Gone. |
D.Family Treasures Are Along With Us. |
【推荐1】While there are many factors that go into how attractive you are to mosquitoes, new research has found the colors you’re wearing definitely play a role.
That's the main takeaway from a new study published in the journal Nature Communications. For the study, researchers from the University of Washington tracked the behavior of female Aedes aegypti mosquitoes when they were given different types of visual and scent cues (信号). The researchers put the mosquitoes into small test chambers and exposed them to different things, like a colored dot or person’s hand.
In case you’re not familiar with how mosquitoes find food, they first detect that you’re around by smelling carbon dioxide from your breath. That prompts them to scan for certain colors and visual patterns that could indicate food, the researchers explained.
When there was no smell like carbon dioxide in the test chambers, the mosquitos pretty much ignored the colored dot, no matter what color it was. But once researchers sprayed carbon dioxide in the chamber, they flew toward dots that were red, orange, black, or cyan. Dots that were green, blue, or purple were ignored.
“Light colors are perceived as a threat to mosquitoes, which is why many species avoid biting in direct sunlight,” entomologist Timothy Best says. “Mosquitoes are very likely to die by dehydration(脱水), therefore light colors may typically represent danger and prompt avoidance. In contrast, darker colors are similar to shadows, which are more likely to absorb and store heat, allowing mosquitoes to use their sophisticated antenna to locate a host.”
If you have the option of wearing lighter or darker clothes when you know you'll be going into an area with lots of mosquitoes, Best recommends going with the lighter choice. “Dark colors stand out to mosquitoes, whereas light colors blend in.” he says.
Apart from avoiding colors mosquitoes like (red, orange, black, and cyan) when you’re going into areas where these bugs are known to exist, there are other things you can do to lower your risk of being bitten by a mosquito, which include:
·Using insect repellent
·Wear long-sleeved shirts and pants
·Get rid of standing water around your home or empty items that hold water like bird baths, toys, and planters weekly
·Use screens on your windows and doors
Each of these protective measures will contribute in decreasing your likelihood of getting bitten. And, if you’re able to wear something other than red or dark colors, even better.
1. How did researchers from the University of Washington conduct their study?A.They referred to a series of previous research findings. |
B.They compared the behavior of female mosquitoes with male ones. |
C.They exposed mosquitoes to different living environments. |
D.They kept track of the behavior of some female mosquitoes. |
A.drill | B.cause | C.require | D.qualify |
A.You can go out wearing lighter or darker clothes. |
B.Dark colors do a good job in protecting you from being bitten. |
C.Light colors make it less likely for mosquitoes to detect you. |
D.Light colors may represent danger and prompt avoidance. |
A.Screening your windows and doors. |
B.Leaving standing water around your home. |
C.Dismissing carbon dioxide from your breath. |
D.Wearing clothes in red or dark colors. |
【推荐2】The negative health effects of sleep shortages during the week can’ t be changed by marathon weekend sleep sessions, according to a new study.
Researchers have long known that routine sleep deprivation(缺乏) can cause weight gain and increase other health risks, including diabetes. But there are still some people who hope that shutting off the alarm on Saturday and Sunday will repay the weekly sleep debt and remove any ill effects.
The research, published in Current Biology, ruins those hopes. Despite complete freedom to sleep in and nap during a weekend recovery period, participants in a sleep laboratory who were limited to five hours of sleep on weekdays gained nearly three pounds over two weeks and experienced metabolic disruption(代谢紊乱) that would increase their risk for diabetes over the long term. While weekend recovery sleep had some benefits after a single week of insufficient sleep, those gains were wiped out when people returned right to their same sleep schedule the next Monday.
“If there are benefits of catch-up sleep, they’ re gone when you go back to your routine. It’ s very short-lived,” said Kenneth Wright, who oversaw the research. “These health effects are long-term. It’ s kind of like smoking once was—people would smoke and wouldn’ t see an immediate effect on their health, but people will say now that smoking is not a healthy lifestyle choice. I think sleep is in the early phase of where smoking used to be.”
Wright said that the study suggests people should prioritize sleep—cutting out the optional “sleep stealers” such as watching television shows or spending time on electronic devices. Even when people don’t have a choice about losing sleep due to child-care responsibilities or job schedules, they should think about prioritizing sleep in the same way they would think about a healthy diet or exercise.
1. What had the researchers already known before doing the new research?A.The actual benefits of weekend recovery sleep. |
B.Harm to health caused by the lack of routine sleep. |
C.People’ s habit of shutting off the alarm during holidays. |
D.The relationship between body weight and sleep amount. |
A.call on smokers to completely abandon smoking |
B.advise people to go to sleep when they want to smoke |
C.show people have known the harm brought by smoking |
D.show people will someday notice the bad effects of sleep deprivation |
A.Putting tasks in order of importance. |
B.Getting more than enough of something to deposit it. |
C.Cutting down something that is not necessary any more. |
D.Treating something as being more important than others. |
A.Weekend catch-up sleep is a lie. |
B.Bad sleep habits are harmful to health. |
C.Smoking is not the worst thing to health. |
D.A new study has an unexpected discovery. |
【推荐3】 If you will be cycling, you will need to know what these traffic signs and signals mean.
A sign like this one means that there is a bike lane(道). If there is a bike lane, you are required to use it. If there is not a bike lane, you should ride with traffic as far to the right side of the road as possible.
When the signal light turns green, cars go. When you cross the street at a signal light, you should wait for the walk signal. Be sure to look carefully to the left, right and left again, before crossing the street.
When the signal light turns yellow, car drivers should slow down and prepare to stop. You should not cross if the light is yellow. The light is about to turn red, and cars will enter the intersection(十字路口).
This signal is the WALK sign. It has a picture of a person walking instead of using the word WALK.
This signal is the DON’T WALK sign. It is part of the signal with the picture of a person walking. This is a picture of a red hand, meaning you should stop. You should wait to cross the street until the green picture of the person walking is showing.
Car drivers and bikers must come to a complete stop at STOP signs.
A yield sign means to slow down and be ready to stop. If there are pedestrians(行人)or vehicles in or nearing the intersection, you must stop. If there is no traffic in or nearing the intersection and it is safe, you may go through.
This sign means you are coming to a crosswalk. Car drivers and bikers must stop to allow people in the crosswalk to cross the street.
A.car drivers | B.skaters |
C.bikers | D.pedestrians |
![](https://img.xkw.com/dksih/QBM/2018/1/22/1865866434658304/1865989394743296/STEM/eceb51db41ea4a20865dba44aacfdba6.png?resizew=41)
A.take the bike lane | B.stop your bike |
C.ride close to the right side of the road | D.ride in the middle of the road |
![](https://img.xkw.com/dksih/QBM/2018/1/22/1865866434658304/1865989394743296/STEM/64a9fc82a08d483aa6f734d79a9c0cc6.png?resizew=34)
A.![]() | B.![]() | C.![]() | D.![]() |
A.can cross the road | B.should walk across the road |
C.should wait | D.can enter the intersection |