A drought is a period of time when an area or region experiences below-normal rainfall. The lack of enough rainfall, either rain or snow, can cause reduced soil wetness or groundwater, diminished steam low (减少的水流), crop loss, and a general water shortage. Droughts are the second-most costly weather events after hurricanes.
The early effects of a drought maybe difficult to identify right away, so it may take weeks or months to determine that a drought has started. The end of a drought is hard to identify for the same reason. A drought may last for weeks, months, or even years. Sometimes, drought conditions can exist for ten years or more in a region. The longer a drought lasts, the greater the harmful effects it has on people.
Droughts affect people in several ways. Clean drinking water is significant for all life, and sources of water may narrow during a drought. Without the presence of water, people must bring in enough water from elsewhere to survive. Water is also needed for crops to grow. When not enough rainfalls to naturally water crops, they must be watered by irrigation (灌溉). Irrigation is possible only when there is enough water in nearby rivers, lakes, or streams, or from groundwater. During a drought, these water sources are diminished and may even dry up, preventing crops from being irrigated and causing them to die off.
One person studying these problems is Alexandra Cousteau, a National Geographic Emerging Explorer whose latest plan is Blue Legacy. She started Blue Legacy to raise awareness that we live on a water planet and must take care of it. Cousteau, the granddaughter of the well-known ocean explorer Jacques Cousteau, believes that water will be a key issue in this century. She predicts that water problems such as drought, storms, floods, and degraded water quality will create “water refugees”, people moving in search of water. Cousteau stresses that we must do all we can to protect Earth’s valuable freshwater resources.
1. What is the function of the first paragraph?A.To introduce what a drought is. | B.To compare droughts with hurricanes. |
C.To explain why a drought occurs. | D.To raise awareness of some disasters. |
A.They cause the greatest harms. | B.They are hard to spot in no time. |
C.They usually end for no reason. | D.They influence people’s living. |
A.Crops cannot grow without water. |
B.Irrigation is impossible during a drought. |
C.There are many ways to prevent droughts. |
D.Droughts influence living and agriculture. |
A.To popularize Blue Legacy. |
B.To tell we live on a water planet. |
C.To persuade people to look for water. |
D.To stress the importance of water resource. |
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【推荐1】Would you know what to do if a fire started in your home? Take the time now to review the following safety tips, and your family will be prepared in time of a fire in your home:
An escape plan can help every member of a family get out of a burning house. The idea is to get outside quickly and safely.
Stay low
If you can see smoke in the house, stay low to the ground as you make your way to the exit.
What if you can’t get out right away?
If you can’t get out fast because fire or smoke is stopping an escape route, you will want to yell for help. You can do this from an open window or call 911 if you have a phone with you.
If your clothes catch fire, what should you do?
Your clothes could catch fire during a fire or by accident if you step too close to a candle. If this happens, don’t run! Instead, stop, drop to the ground, cover your face with your hands, and roll. This will cut off the air and put out the flames.
A.An easy way to remember this is: Stop, Drop, and Roll! |
B.Smoke from a fire can make it hard to see where things are. |
C.Preventing fires is in the first place! |
D.Know your way out |
E.They will help prepare you for what you need to do in case of a fire. |
F.Even if you are scared, never hide under the bed or in a closet. |
G.In a fire, smoke and poisonous (有毒的) air hurt more people, than the actual flames (火焰) do. |
【推荐2】A restaurant owner’s remarkable act of heroism saved many lives during a storm in Rolling Fork, Mississippi, which destroyed a local restaurant.
Tracy Harden, the owner of Chuck’s Dairy Bar, rushed her staff into a walk-in cooler moments before a tornado hit the establishment on Friday.
Harden spoke to Good Morning America reporter Robin Roberts on Monday alongside two employees, Barbara Pinkins and Carolyn Washington, who were both in the restaurant when the tornado hit.
As the horrible tornado tore through the local area, Harden said she only had a minute of advance notice before it came moving rapidly through the restaurant.
“I got two text messages back-to-back from my sister and my daughter in Vicksburg and they both said, “There’s a tornado down, get to a safe place.’ At the same time I had my teenage cashier came running towards the back of the building saying, ‘My mother is on the phone and she said there is a tornado down here.’ At that point, most of us were towards the back of the building and the lights flickered(闪烁). And I just shouted, ‘Cooler!’ And my husband opened the cooler door and started pushing us in.”
Harden said that once her husband got them all inside, including himself, “he lost control of the door, the wind took the door and somehow he was able to get the door back.”
“Just before it shut, he looked up and he said, ‘I see the sky,’ so that let us know that this was way worse than anything we could have imagined,” she continued. “And the roof was gone.”
Pinkins, meanwhile, recalled the chaos(混乱场面)before the tornado touched the restaurant, as Harden led people to safety. She said she remembered hearing Harden say,“Calm down. Everybody gets to the cooler!”
“By the time we got to the cooler, I couldn’t hear anything but the ceiling falling,” Pinkins said through tears, hugging Harden.
1. Where was Harden when the tornado struck?A.In Chuck’s Dairy Bar. |
B.In Vicksburg. |
C.In Good Morning America station. |
D.In Robin Roberts’ restaurant. |
A.It was slow but frightening. |
B.It was the worst in local history. |
C.Harden lost her husband because of it. |
D.Harden received an advance notice about it. |
A.Ambitious and energetic. |
B.Brave and calm. |
C.Optimistic and determined. |
D.Selfless and tough. |
A.Methods to Survive a Tornado |
B.Damage Brought by a Tornado |
C.Restaurant Owner Saved her Staff from Tornado |
D.Horrible Tornado Destroyed a Local Restaurant |
【推荐3】As wildfires continued to sweep across Australia, the loss of life in the area was reaching astonishing numbers. Ecologists (生态学家) at the University of Sydney said that nearly half a billion animals and plants had been wiped out since the fires began several months before. Images and videos from the area showed kangaroos trying to escape from burning forests and charred (烧焦的) bodies of koalas lying on the ground.
Koalas, which had been already under threat because of significant habitat loss, were hit particularly hard compared with other animals. Ecologists said nearly 8,000 koalas—about one-third of the population in their primary habitat-were believed to have died from the big fires. Professor Dieter Hochuli from the University of Sydney said it wasn’t just the well- known species, such as kangaroos, koalas and emus(鸸鹋), that were in danger. Insects also suffered losses. Additionally, many rare plant species might have disappeared completely.
While animal hospitals were taking in as many animals as possible to treat burns and nursed them back to health, services had overall struggled to keep up with the amount of care needed. And the animals that had survived would have trouble finding food and shelters among the ongoing flames, so they were still in a dangerous situation.
“We’re getting a lot of lessons out of this and it’s just showing how unprepared we are,” Dr. Sussan Ley said. “Now Australia is burning and national parks and our native animals are being destroyed. People have lost homes. People have died. Firefighters have been killed defending communities, most recently last night. There’s no protocols (拟定草案) in place even wildlife carers dont’ have protocols for when they can go in after fire. It’s our national government that is failing us.”
1. What’s the purpose of the second paragraph?A.To explain why there were so many rare animals in Australia. |
B.To show the terrible effect Australian wildfires had on species. |
C.To further confirm Professor Dieter Hochuli’s’unique opinion. |
D.To warn people to take good care of wild animals and plants. |
A.They failed to recover from serious burns. |
B.They might be hunted by people for food. |
C.They were short of food and shelters. |
D.They were unable to get nursing services. |
A.Supportive. | B.Unconcerned. | C.Doubtful. | D.Dissatisfied. |
A.Many rare animal species might have disappeared. |
B.Measures should be taken to prevent Australian wildfires. |
C.Australian wildfires killed nearly half a billion animals and plants. |
D.Ecologists have made great efforts to find the causes of wildfires. |
【推荐1】When you think about ways to fight pollution, you likely don’t think about bacteria. However, researchers led by Northwestern University and Lanza Tech have discovered a type of bacteria that can break down waste carbon dioxide to make valuable industrial chemicals, according to a press release by Northwestern published Monday. The breakthrough could revolutionize how we deal with carbon dioxide and climate change.
“The accelerating climate crisis, combined with rapid population growth, pose some of the most urgent challenges to humankind, all linked to the continuous release and accumulation of CO2 across the entire biosphere,” said Northwestern’s Michael Jewett, co-senior author of the study. “By partnering with biology to make what is needed, where and when it is needed, on a sustainable and renewable basis, we can begin to take advantage of the available CO2 to transform the economy.”
In their work, the researchers engineered a bacteria strain that can transform CO2 into acetone and Isopropanol (IPA), avoiding traditional methods that use fossil fuels for the creation of these chemicals. Better yet, the new gas fermentation (发酵) process also removes greenhouse gases from the atmosphere. The researchers undertook a life-cycle analysis and found that their process could reduce greenhouse gas emissions by 160% as compared to conventional processes if this method were to be broadly adopted.
“This discovery is a major step forward in avoiding a climate catastrophe,” said Jennifer Holmgren, Lanza Tech CEO. “Today, most of our industrial chemicals are obtained absolutely from new fossil resources such as oil, natural gas, or coal. Acetone and IPA are two examples with a combined global market of $10 billion. The acetone and IPA pathways developed will accelerate the development of other new products by closing the carbon cycle for their use in multiple industries.”
The researchers believe their process will translate to industrial scale and could even be applied to create streamlined processes for developing other valuable chemicals.
1. What can we learn from paragraph 1?A.The bacteria can produce CO2 and industry chemicals. |
B.A revolutionary way was found to deal with climate crisis. |
C.The researchers focus primarily on how to deal with bacteria. |
D.The discovery changed people’s attitude towards climate change. |
A.Challenges to humankind cause climate crisis. |
B.We can make what we need at will using CO2. |
C.CO2 can play a positive role in transforming economy. |
D.The way of releasing CO2 is changed by partnering with biology. |
A.It will have a potential market of $10 billion. |
B.It will accelerate the development of other new products. |
C.It will develop other valuable chemicals on large scales. |
D.It will reduce greenhouse gas emissions without using fossil fuels. |
A.In a biology textbook. | B.In a Lab guidebook. |
C.In an academical paper. | D.In a science newspaper. |
【推荐2】London’s Kew Gardens reopens its Temperate House, the world’s largest Victorian glasshouse.
For the first time in its history, the Grade I-listed structure was restored to bare metal and modernized. More than 5,280 liters of paint was used, enough to cover four football fields, and 15,000 panes of glass was replaced. The house opened to the public on Saturday, May 5.
The large greenhouse is now home to an arranged collection of different plants from areas of temperate (温带的)climates around the world — areas sometimes described as the Goldilocks zone of the planet, where plants are safe from coldness.
These include some of the rarest and most threatened species, for which the botanic (植物的)garden is a final shelter. Among the more than 1,000 different species of temperate plants is the extremely rare South African cycad Encephalartos woodji, a plant that has disappeared from the wild and is now found in botanic gardens and private collections.
This tree has been named “the loneliest plant in the world”, because only male plants remain - each a clone of the specimen at Kew, which was collected in the middle of the 19th century. Some plants contain both male and female parts, but this species requires a female to produce seeds.
Lead gardener Scott Taylor, who is overseeing the Temperate House collection stressed the importance of having an insurance population of one of the world’s most endangered plants.
“ We have an important job to keep all of these things going,” Mr. Taylor said. “For some plants, they are down to a few in the wild — a wildfire, an earthquake, and they’re gone. ’’
1. Where may you find South African cycad Encephalartos woodii?A.In any of London’s gardens. | B.In a personal collection of temperate plants. |
C.In the laboratory of cloning plants | D.In the wild in London. |
A.There aren’ t such male trees any more. | B.There aren’ t female trees any more. |
C.Because of the overhunting of the trees. | D.Because of the difficulty in producing. |
A.The Grade I-listed Structure Was Completed | B.The World’s Largest Glasshouse Reopens |
C.How to Build a Greenhouse | D.How to Protect the Wildlife |
【推荐3】Paris is full of cultural significance. Yet, despite its wealth of cultural hotspots and architectural delights, some tourists who explore the City of Light experience “Paris syndrome (巴黎综合征), a psychological condition that often results in nausea (恶心) and increased heart rates. An interesting phenomenon is that Paris syndrome is “most common among Japanese tourists”. Why?
Many Japanese visitors go with a deeply romantic picture of Paris----the beauty of French women, the high culture and art. But when the reality of the modern city of Paris sets in, with its seemingly unfriendly service and confusing public transport, some tourists simply find their hope falling through.
“An encounter with a Parisian waiter who shouts at customers might be laughed off by those from other Western cultures. But for the Japanese —used to a society where politeness is valued and voices are rarely raised in anger-----the experience of their dream city turning into a nightmare (噩梦) can simply be too much,” said Rodanthi Tzanelli, a professor of cultural sociology.
So Paris syndrome should be regarded as an extreme form of culture shock, which is an illness resulting from the loss of meaning when people find themselves in a different symbolic reality, according to Rachel Irwin, a senior researcher. The symptoms (症状) associated with culture shock are similar to those experienced by someone who is feeling anxious. According to the analysis (分析) of Calm Clinic, a mental health resource platform, when someone is experiencing anxiety, signals that are related to the fight or flight response will be sent to the stomach. The signals change the way the body processes food, causing nausea.
Besides, Tzanelli points out that the syndrome is not specific to Paris and nobody can be free of culture shock as long as they go to new places. The syndrome is likely a “general phenomenon”, as younger generations tend to travel to different countries, and are likely to be more aware of what they’ll encounter at a destination. Therefore, they’re unlikely to be bitterly disappointed when they’re there.
1. Why do Japanese tourists experience great discomfort in Paris?A.Paris lacks real historical and cultural hotspots. |
B.Paris fails to meet their romantic expectations. |
C.They find Paris’ public transport less modern. |
D.They cannot adapt to the local climate. |
A.How culture influences the behavior of tourists. |
B.How Japanese tourists react to Paris syndrome. |
C.Why Paris syndrome particularly strikes the Japanese. |
D.Why the Japanese value politeness and avoid conflicts. |
A.People’s inability to adapt to new cultures. |
B.The methods of overcoming culture shock. |
C.People’s varied attitudes to different cultures. |
D.The physical discomfort caused by culture shock. |
A.To be prepared for new encounters in advance. |
B.To focus on the positive aspects of a destination. |
C.To visit new places together with young people. |
D.To avoid going to unfamiliar destinations. |