1 . Cooler, higher places may not be very welcoming to some hummingbirds trying to escape rising temperatures and other effects of climate change. Anna's hummingbirds live no higher than about 2,600 meters above sea level. If the birds attempt to expand their range to include higher altitudes, they may struggle to fly well in the thinner air, researchers reported in the Journal of Experimental Biology.
These hummingbirds have expanded their range in the past. Once only found in Southern California, the birds now live as far north as Vancouver, says Austin Spence, an ecologist at the University of California, Davis. That expansion is probably due to climate change and people using feeders to attract hummingbirds, he says.
Spence and colleagues collected 26 Anna’s hummingbirds from different elevations (海拔) in the bird’s natural range in California. The team transported the birds to a habitat about 1,200 meters above sea level and measured their metabolic (新陈代谢的) rate when hovering (盘旋). After relocating the hummingbirds to a field station at an altitude of 3,800 meters, the researchers let the birds rest for at least 12 hours and then measured that rate again.
The rate was 37 percent lower, on average, at the higher elevation than the aviary, even though the birds should have been working harder to fly in the thinner air. At higher altitudes, hovering, which takes a lot of energy compared with other forms of flight, is more challenging and requires even more energy, Spence says. The decrease in metabolic rate shows that the birds’ hovering performance was suffering, he says “Low oxygen and low air pressure may be holding them back as they try to move upward.”
Additional work is needed to see whether the birds might be able to better adjust if given weeks or months to get used to the conditions at gradually higher altitudes.
1. What factor may have contributed to the expansion of Anna's Hummingbirds' range?| A．A shift in migration patterns. | B．A lack of food sources. |
| C．A decrease in temperature. | D．Human use of feeders. |
| A．By monitoring their feeding behaviors. |
| B．By comparing their different forms of flight. |
| C．By measuring their metabolic rate while hovering. |
| D．By observing their adaptability to a new environment. |
| A．Weakened | B．Enhanced. | C．Unaffected. | D．Dynamic. |
| A．Studying the changes in their hunting methods. |
| B．Recording their numbers over an extended period. |
| C．Examining their ability to accommodate to higher altitudes. |
| D．Investigating the impact of other bird species on their range. |
2 . Improper disposal of electronic devices can lead to negative impacts on the environment. So if you are in possession of an “old electronics” box or merely an old iPhone, consider recycling as an option. Here are some organizations worth checking out.
EcoATM
EcoATM is an automated kiosk that collects your unwanted cellphones and tablets and gives you cash for them. You'll find them by the checkout lines at various grocery store chains. It accepts devices from any era or in any condition, and offers anywhere between a few bucks to a few hundred dollars in return.
Best Buy
Best Buy offers a simple, straightforward recycling program. You can take your old phone to any of its retail stores and it'll take care of the entire recycling process for you. Best Buy will even give you a gift card for the value of the device you give them.
Call2Recycle
Call2Recycle is one of the largest recycling programs in the United States. The company collects used smartphones and batteries and has them either recycled or refurbished (翻新) for future use. It partners with various retailers to provide recycling services in stores like Lowe’s, The Home Depot and other smaller businesses.
Eco Cell
Eco Cell takes a unique approach to recycling phones. The program collects used smartphones and other gadgets for recycling through local zoos and other wildlife organizations. It then gives what it makes from recycling or refurbishing the devices back to those organizations in order to continue their work.
1. What do EcoATM and Best Buy have in common?| A．They are based in grocery stores. |
| B．They offer a reward for recycling. |
| C．They collect various kinds of devices. |
| D．They refurbish recycled items. |
| A．Call2Recycle | B．Eco Cell | C．Best Buy | D．EcoATM |
| A．The variety of items it recycles. |
| B．Its marketing strategies. |
| C．Its pricing policies and structures. |
| D．Its dedication to preserving wildlife. |
1. Which season is it now?
| A．Spring. | B．Summer. | C．Winter. |
| A．Monday. | B．Tuesday. | C．Wednesday. |
| A．30 km per hour. | B．35 km per hour. | C．50 km per hour. |
| A．2. | B．8. | C．10. |
Earthquakes are one of the most destructive natural disasters. They can happen just about anywhere. Earthquakes cannot be stopped,
If you are in
Remember that aftershocks are possible at any time and are
(1)水灾发生的原因;
(2)水灾造成的影响;
(3)灾后情况。
注意：
(1)词数80左右;
(2)可以适当增加细节, 以使行文连贯。
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
6 . How to Prepare for an Earthquake
An earthquake can be a very destructive natural disaster, particularly in the Pacific Rim region. After an earthquake, your home may be a mess and you might be left without a water supply or power.
· Create a disaster plan.
Form your plan and know what to do before the earthquake happens.
In a real earthquake, this is your number one defense. Drop to the floor, take cover under a firm desk or table and hold on firmly. Namely, drop and cover your head from falling objects. Stay there until the shaking stops.
·Learn basic first aid.
There are resources in your community to educate people on how to deal with first aid emergencies.
·Write down and share emergency contact lists.
This should include everyone in your home, office, etc.
| A．Stay away from the shaking house. |
| B．Practice “drop, cover and hold on”. |
| C．Then go over your plan on a regular basis. |
| D．Therefore, you can turn to your family for help. |
| E．You need to know how to get in touch with them. |
| F．There are several things you can do to prepare for an earthquake. |
| G．For example, your local Red Cross has classes teaching you the basic skills. |
7 . Home to the world’s second biggest freshwater lake, as well as its longest lake, Africa hosts some of the best lakes on the planet. Here are some of our picks:
Lake Assal, Djibouti
Sitting at 155 meters below sea level, Lake Assal is in Africa’s lowest point. Its salt levels are 10 times greater than the sea. As such it is also the world’s largest salt reserve (储备量). Visitors will note there is no wildlife around due to its unfriendly desert climate and super salty water.
Lake Retba, Senegal
Photography fans will love Lake Retba for its breathtaking scenery. Also called the Pink Lake of Senegal, it is an impressive pink-colored lake. The color comes from a type of algae (海藻) that grows because of the large amount of salt in the lake. To see the lake at its most pink, you’ll want to visit during the November to June dry season.
Lake Turkana, Kenya
Lake Turkana is the largest long-lasting desert lake in the world, as well as its fourth-largest salt lake. Lake Turkana is most famous for the vapor rising out of the active volcano (火山) within it. A dream place for bird-watchers, it is home to hundreds of bird species that are only found in Kenya.
1. What makes Lake Retba pink-colored?| A．Its depth. | B．The desert climate. |
| C．Its amount of salt. | D．A certain sea-plant. |
| A．The large size. | B．The unique bird species. |
| C．The sandy beaches. | D．The steam from the volcano. |
| A．They are saltwater lakes. | B．They sit below sea level. |
| C．They are rich in wildlife. | D．They share the same tourist season. |
8 . Spending your nights sleeping for just four seconds at a time might sound painful, but not for chinstrap penguins (帽带企鹅), which fall asleep thousands of times a day, new research finds.
Scientists studying the chinstrap penguins on King George Island in Antarctica found they nod off more than10,000 times a day, allowing them to keep an eye on their nests all the time, protecting eggs and chicks from predators (捕食性动物).
“Nesting penguins took over 600 ‘microsleeps’ an hour, each lasting only four seconds,” researchers wrote in the paper, published in the journal Science. The findings suggest “microsleeps can perform at least some of the functions of sleep”.
Sleep seems to be common among animals, but it makes them vulnerable because they lose the ability to respond quickly to the outside environment.
The researchers studied chinstrap penguins in the wild using electronicephalogram (EEG) monitoring. Microsleeps were shown by sleep-related brain activity and eye-closure. They noticed a slight increase in the depth of sleep at around noon, when risk of predation could be at its lowest.
Studies have shown some species routinely sleep very little, seemingly without negative costs to their performance while awake. African bush elephants sleep on average for two hours a day, and mostly while standing up, one study found. Sometimes they went 48 hours without sleeping.
Giant frigate birds can spend months on the wing during ocean migrations (迁徙). During this period they can sleep for less than an hour a day, while still flying and hunting. When they get back to the nest they sleep for nearly 13 hours a day.
“Sleep seems to be flexible among species,” a researcher said. “I believe that there are still many things unknown about animal sleep.”
1. Why do Chinstrap Penguins nod off more than 10,000 times a day?| A．To find family meals. | B．To guard their newborns. |
| C．To enjoy good sleep. | D．To get more rest. |
| A．Easily hurt. | B．Fully prepared. | C．Totally satisfied. | D．Widely known. |
| A．Potential attacks from predators. | B．Movements of eyes. |
| C．The number of nests. | D．Changes of temperature. |
| A．Larger animals are likely to have less sleep. |
| B．Some animals sleep more during migration. |
| C．Birds can sleep when they are standing up. |
| D．Sleeping little may not affect waking performance. |
Caught in a flood
Mary and her parents were downstairs in the living room. Mary was looking through the windows at the endless rain outside. It had been raining non-stop for three days. She had never seen a storm this bad. It was making her nervous. The wind roared and the rain beat on the roof and windows. Dad was listening to a weather report on the radio, while Mum was putting their important documents and disaster supplies into a bag.
“Mum, Dad,” said Mary suddenly, “I think we should leave here right away!”
“No,” said Dad. “It’s too late: The radio says the city has already been flooded.”
“We can drive our car through the floodwater. Let’s us leave! I’m really scared!” cried Mary. “We can’t do that, honey,” explained Mum, “otherwise the moving water could wash the car away!”
Mary walked to the door. She was curious to see how much water there was outside.
“Don’t open the door!” shouted Mum and Dad at the same time. “The water may flood in!”
Dad moved the dinner table against the door, in case the floodwater forced the door open. Mum waved to Mary to sit on the sofa. “Mary, don’t worry. Everything’s going to be OK,” she said softly, trying her best to comfort Mary. Her voice was calm, but Mary could tell she was worried too.
Without saying a single word, Dad walked to the sofa, sat down and hugged his wife and daughter. The sudden silence in the house seemed to make the wind and rain more frightening outside. What could they do?
注意：1．续写词数应为150左右；
2．续写部分分为两段，每段开头语已为你写好。
Paragraph 1:
All of a sudden, the floodwater forced the door open.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Paragraph 2:
Being upstairs, they breathed a sigh of relief.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________10 . People have different ways of dealing with waste paper, specifically used newspapers. Some put them in the recycling area, while others keep them as wrappers (包装纸). While these are both good measures, a Japanese publishing company had a better idea for their end use.
The Mainichi Newspapers Co., Ltd. invented the “Green Newspaper”, which allows people to grow plants with it. This unique newspaper was published on Greenery Day, which is focused on environmental news and made of green paper with seeds placed into it. What makes it even more special is the ink (油墨) used to print words and photos, which is made from plants. The publisher advises readers to tear the used newspaper into small pieces and plant them in a container with soil. They should water them, like they would do for any plant. Within a few weeks, the seeds will grow into plants.
This brilliant concept was invented by Dentsu Inc., one of Japan’s most famous advertising agencies, which works with the publishing company on the initiative (倡议). The publisher’s belief is environmental sustainability (持续性). As its mission statement says, “The Mainichi doesn’t take action only through information, but also by solving global issues.” With joint efforts, this initiative has reached the corners of Japan and sold around millions of copies daily. Other such initiatives producing plantable paper are also seen in India and the US.
About 95 million trees are lost for producing newspapers every year. The Internet, the number of whose users stands for 62.5 percent of the population worldwide, has influenced how people read news and the print readership has dropped greatly. However, the reinvention and reimagination of this newspaper will bring about a change in the publishing industry as well as having an environmental influence.
1. What do we know about the “Green Newspaper”?| A．It uses high-tech materials. |
| B．It provides energy for seeds. |
| C．It’s printed with plant-based ink. |
| D．It’s published to celebrate Greenery Day. |
| A．It’s easier said than done. |
| B．Everything comes to him who waits. |
| C．Many hands make light work. |
| D．Actions speak louder than words. |
| A．Doubtful. | B．Supportive. |
| C．Indifferent. | D．Negative. |
| A．About 59 million trees are lost for producing newspapers. |
| B．The Internet has changed the way people read news totally. |
| C．The popularity of the Internet leads to the fall of the print readership. |
| D．The “Green Newspaper” will encourage more people to protect the environment. |
