阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
The driver, Zhang Sai, hesitated outside 1. apartment building in Wuhan, the central Chinese city at the heart of the coronavirus outbreak. He 2. (order) not to take food to customers’ doors in order to minimize the risk of 3. (infect).
But the woman on the phone was begging, he recalled. The food was for her mother, 4. couldn’t go down to meet him. Mr. Zhang finally agreed. He would drop off the order and rush away. 5. he placed the bag on the floor, Mr. Zhang said, the door opened. 6. (Frighten), he rushed away. Without thinking, he pressed the elevator button with his finger, touching a surface he feared could transmit the virus.
That was how Mr. Zhang, 32, found 7. (he) speeding back to his delivery station with one finger 8. (hold) high in the air, careful not to touch the rest of his hand.
For many people in China, delivery drivers like Mr. Zhang 9. (be) the only connection to the outside world. Once a common but invisible presence on the streets of nearly every Chinese city, the drivers are now being praised 10. heroes.
Madagascar was not the paradise I expected. A reporter and I were ______ there to find out who was helping with drought relief and the prevention of famine(饥荒).
After a three-hour ride in a van, we ______ in the small town of Ambovombe.Peter immediately headed over to the hospital to speak with a local ______ on our topics of interest. Since I didn't need to photograph the background ______ with the doctor, I wandered out to the road.
I raised my ______ to get some images before the sun went down. I've ______ been to Madagascar before, and until you've actually photographed in a place, you don't know how people will ______ to the camera.
I ______ a handsome man who was leaning against a wall in the golden light of dusk. No reaction. I took a breath. After a while, everyone within a 20-yard radius had ______ me. Some called out to each other, playfully teasing those I'd ______ .
Soon after, a mother encouraged me to photograph her young children.I ______ a moment. They were dressed in ______ clothes. One of them may not have even had any pants on---not because her parents were neglectful, but because they couldn't ________ them.
Their mother really ______ me to photograph them. This happens everywhere I go. Parents, ______ of their children, ask me to take a photo. I'd taken this photo of cute smiling children over and over. I don't usually save ________ ，but I saved this one.
Why? The children's _________ .It's something so powerful yet so ______ that we sometimes miss it. This mom, despite all the ________ obvious to an outsider's eyes, found in her children something she wanted a photograph to remember. That's because she saw a(n) ______ picture: She saw them with a mother's heart. As should we all.
1.A.expected B.assigned C.allowed D.persuaded
2.A.arrived B.explored C.searched D.camped
3.A.reporter B.nurse C.doctor D.patient
4.A.discussion B.interview C.program D.practice
5.A.paper B.hand C.head D.camera
6.A.just B.seldom C.never D.already
7.A.respond B.adapt C.return D.contribute
8.A.discovered B.greeted C.asked D.photographed
9.A.caught B.noticed C.found D.suspected
10.A.helped with B.stared at C.referred to D.focused on
11.A.watched B.regretted C.hesitated D.choked
12.A.beautiful B.funny C.dirty D.colorful
13.A.serve B.afford C.choose D.bring
14.A.wanted B.informed C.reminded D.paid
15.A.afraid B.sure C.aware D.proud
16.A.images B.cards C.gifts D.words
17.A.clothes B.kindness C.mother D.expectation
18.A.emotional B.changeable C.sensitive D.common
19.A.adventures B.disadvantages C.curiosity D.support
20.A.different B.natural C.broad D.interesting
How long does a year last? 1. But your parents might say that a whole year can pass “in the blink of an eye”. Why does time seem to pass faster as we get older?
2. This physical change causes the rate at which we take in and process new information to decline. Babies, for example, move their eyes much more often than adults because they’re processing images at a faster rate. They take in a lot of information and do many things in a single day. 3. However, as people’s brains degrade over time, fewer images are processed in the same amount of time. Therefore, older people receive less information during a day than younger people. This causes things to seem as though they’re happening more quickly.
4. People may measure time by the number of memorable events that can be recalled within a certain period. Have you ever noticed that when you recall your firsts (first day of school, first family vacation, first birthday party, etc.), they seem to be in slow motion? That’s because when something is a “first”, there are many exciting things to remember. Recalling these memories makes you feel like they took forever.
For many adults, life is routine. When they look back, they might feel like there are not many novel (新奇的) things to remember. 5.
A.Children might say that a year lasts forever.
B.Therefore, time seems to be moving faster to them.
C.Different people have different feelings toward time.
D.This makes them feel like a single day lasts for a long time.
E.As we grow older, we become less interested in new things.
F.According to scientists, our brains degrade and change over time.
G.In addition, people may also “feel” time differently due to psychological reasons.
Have you ever had a burger without meat? You might think that a vegetable burger will take away the real meaning of a burger as it will not have the juicy taste of meat. Despite these concerns, the company, Beyond Meat, has managed to successfully make plant-based meat.
On May 2, the company became the first vegan company to become public. Beyond Meat’s initial share price was expected to range from $19 to $21. Impressively, just hours later, Beyond Meat’s stocks rose to $73!
Instead of killing animals, Beyond Meat obtains these components from different plants and combines them to make vegan meat. It contains pea protein that gives the chewy, meaty texture along with canola oil, coconut fat and other binding agents. In addition, the company uses beet juice to simulate the bloody look of beef! The plant proteins are subjected to intense heating, cooling and pressure so that their structure becomes fibrous and copies that of animal meat.
For people who have changed their diet but miss the taste of meat, Beyond Meat satisfies their taste buds. It also has all the nutrients and elements that meat has, but does not come from an animal.
Plant-based meat is also beneficial as fewer animals are killed. As our world’s population continues to grow beyond 7 billion, so does the demand for meat. Livestock farming is not sustainable as it requires more land, consumes more energy and is one of the largest producers of greenhouse gases. Beyond Meat uses 99 percent less water and 93 percent less land. It also has 90 percent fewer greenhouse gas emissions, and it uses 46 percent less energy.
However, there are some people who do not like the smell of a Beyond Meat patty. Others question that processed foods are unhealthy and it is safer to choose whole vegetables instead. Regardless, with another company, Impossible Burger, looking to go public soon, as well as companies such as Tyson Foods and Nestle looking to enter the market, plant-based meat is here to stay. These companies hope to convince many people to switch from meat to plant-based alternatives.
1.Why did Beyond Meat’s stocks rise sharply?
A.People found it convenient to buy plant-based meat.
B.People believed the bright future of the company.
C.People preferred to spend more money buying meat.
D.People are becoming vegans in life.
2.What is the third paragraph mainly about?
A.What is made up of meat.
B.Why plants can be made into meat.
C.How plant-based meat is made.
D.Whether plant-based meat is allergenic.
3.What is one of the features of plant-based meat?
A.It makes farming sustainable.
B.It contains all the nutrients people need.
C.It doesn’t have the taste of meat.
D.It is environmentally friendly.
4.What can be inferred from the last paragraph?
A.Plant-based meat will become a new trend.
B.All people prefer plant-based meat.
C.Vegan companies produce unhealthy food.
D.The smell of plant-based meat is disgusting.
Joshua Plotnik and his colleagues carried out the tests on six 12-45-year-old Asian elephants living in the grounds of a hotel in northern Thailand. The buckets containing the seeds were not clear enough to see through and had a lid with small holes to let the smell out. In experiments, the elephants chose the greater quantity of seeds in each pair, regardless of the quantity of seeds presented. The accuracy of the prediction was better when the difference between each pair increased.
This is thought to be the first time that an animal is able to use its sense of smell to make a simple calculation of whether one of two quantities is more or less than another-the most basic form of math.
Many animal species have shown an ability to tell apart between more and less when presented with different amounts of food. But they have used vision to discriminate. Dogs have been unable to show they can perform the same trick in tests of their abilities to smell.
For an elephant this ability could be very important. Elephants often travel long distances to find better-quality food and water, which can differ according to seasonal availability, changes to their environment, and a risk they could be attacked by humans. The best performers were able to get it right more than 80 per cent of the time.
The scientists suggest that male elephants are better at the task because they need to eat more food, making it more important that their sense of smell is keener. Males also have to sniff out females in heat over long distances in order to reproduce.
They say that while elephants do use vision, particularly in close contexts where they react to each other’s body language, they use it mainly to match their more powerful senses-hearing, smell and touch.
That elephants have a powerful sense of smell is perhaps unsurprising. They have more genes related to smell than any other animal: 2,000 compared to around 800 for a dog.
1.What special ability do elephants have?
A.Use their trunks to find different smells.
B.Distinguish between more and less food.
C.Smell the differences of food quality.
D.Per form the basic math calculation.
2.What does the underlined word “discriminate” mean?
A.Choose. B.Indicate.
C.Measure. D.Distinguish.
3.Why do elephants often travel long distances?
A.To find where the better food is.
B.To find where humans wait to attack them.
C.To find where the environment has changed.
D.To find where they can adapt to the climate.
4.What is the best title for the text?
A.Elephants can do simple math puzzles
B.Elephants can “count” with their trunks
C.Elephants can smell the quality of food
D.Elephants can use vision to communicate
Global warming does more than just kill plant species-it also changes the way plants grow. Researchers at Martin Luther University Halle-Wittenberg (MLU) joined forces with the Leibniz Institute for Plant Biochemistry (IPB) to discover the molecular processes of plant growth. In Current Biology, a scientific journal, they presented their findings on high-temperature plant growth. This could lead to developing plants that can survive global warming.
Plants react to even small temperature changes, but they are unable to move to new locations. “When temperatures rise, plants grow taller... to cool themselves off. Their stalks become taller, and their leaves become narrower and grow farther apart. Yet, this makes the plant more unstable overall,” explains Professor Marcel Quint, an agricultural scientist at MLU. Unstable plants bend faster in the rain and produce less food that’s also less nutritious.
There’s still lots to learn about plant reactions to temperatures. “We are just starting to understand how plants detect the changes in temperature...,” Quint says. Earlier studies have shown that the protein PIF4 directly controls plant growth and is also dependent on temperature. When it’s cold, PIF4 is less active, meaning the plant doesn’t grow. At higher temperatures, PIF4 activates growth-promoting genes, and the plant grows taller. This is new information, says Quint.
To understand it, they investigated the growth of thale cress (Arabidopsis thaliana,) seedlings. Normally, its seedlings form short stems at 20℃. These stems become considerably longer at 28℃. They discovered a hormone that activates the PIF4 at high temperatures, thus producing the protein. The findings of the Halle group may help to breed plants that remain stable even at high temperatures and produce many crops.
1.Why did the researchers at MLU and IPB conduct their research?
A.To study the negative effects of global warming.
B.To find out how plants help reduce global warming.
C.To observe how global warming affects plant growth.
D.To understand the ways that plants cause global warming.
2.What can we learn from Paragraph 2?
A.Low temperatures have little impact on plants.
B.Plants prefer dry weather to rainy weather.
C.Plants are very sensitive to changes in soil.
D.High temperatures decrease crop production.
3.What do we know about PIF4?
A.It mainly exists in the cress seedlings.
B.It works differently at different temperatures.
C.It is a kind of gene that controls plant growth.
D.It is a plant hormone that works at high temperatures.
4.Who will probably benefit most from the findings?
A.Farmers. B.Botanists.
C.Researchers. D.Environmentalists.
