1 . A new study led by researchers at the Yale School of Public Health finds air pollution may negatively impact standardized test scores. Using data from the North Carolina Education Research Data Center, the researchers tracked 2.8 million public school students in North Carolina from 2001 to 2018 and measured their exposure to PM2.5 found in polluted air. While previous research has shown negative effects on academic performance, it has relied on relatively small or less representative samples. “The biggest strength of this study is that we tracked every student in North Carolina in those years, for the whole time period that they were in the public schools,” said Emma Zang, coauthor of the study.
The study also finds that test scores of ethnic minorities and girls are disproportionately (不成比例地) impacted by PM2.5 levels. “Females and ethnic minorities face sexism and racism,” said Zang. “There are a lot of policies that are not friendly towards them. So, when they’re exposed to the same level of air pollution, they don’t have the resources to lessen the negative influences.” More privileged populations, however, might have more resources that allow them to live in a better environment, such as in houses with air purifiers.
“The level of PM2.5 pollution in the US is relatively low, but students living in areas below the current air quality standard of annual PM2.5 concentration are still negatively impacted by air pollution when it comes to their test scores,” said Zang. “We should aim to strengthen the annual PM2.5 standard to better protect our children.”
Air pollution is known to contribute to disease and death, and it also negatively affects students’ academic performance even at low levels of pollution. The subsequent studies, the researchers said, would involve looking at whether the findings hold true in different areas, and also the reasons behind the ethnic and sexual differences.
1. What’s the greatest advantage of the study?| A．Tracking each student for 18 years. | B．Collecting more comprehensive data. |
| C．Measuring students’ PM2.5 exposure precisely. | D．Building links between air pollution and test scores. |
| A．benefit from current policies on PM2.5 pollution |
| B．have the lowest test scores due to their identities |
| C．lack resources to reduce the impact of air pollution |
| D．suffer from educational inequalities owing to their background |
| A．Offering a suggestion. | B．Raising a doubt. |
| C．Making a comparison. | D．Giving a prediction. |
| A．Applicability of the findings to other regions. | B．Ways to address racial and sexual differences. |
| C．Long-term impacts of air pollution on children. | D．Establishment of PM2.5 standard fit for children. |
1. What did NASA call the area?
| A．The Light of Venezuela. |
| B．The Lightning Capital of the World. |
| C．The Never-ending Storm of Catatumbo. |
| A．The warm ocean current. |
| B．The strong mountain winds. |
| C．The special geographical location. |
| A．About 12%. | B．About 30%. | C．About 70%. |
| A．The man is afraid of lightening very much. |
| B．The locals are surprisingly fearless of lighting. |
| C．About 12,000 American people get hit in their lifetime. |
1. Why is the mother unwilling to keep a young dog?
| A．It costs money. |
| B．It needs extra care. |
| C．It affects her sleep. |
| A．Easy to teach. |
| B．Bright and friendly. |
| C．A good companion. |
1. What animal is Simba?
| A．A lion. | B．A tiger. | C．A monkey. |
| A．By his size. | B．By his character. | C．By his birthday. |
| A．She is outgoing. | B．She is caring. | C．She is serious. |
| A．Play with others. | B．Take care of others. | C．Have a good sleep. |
5 . My parents had purchased an Island Packet 445 ten months prior, and the day to board this boat had finally come. I was 11 years old and knew absolutely nothing about this cruising (海上航游) lifestyle my father had been speaking so highly of for the previous five years. The only thing I knew for sure was that I didn’t want to leave my home. My father was excited, my mother nervous, my brother disinterested, and I sullen. I was not at all eager about this change in my lifestyle.
The first three months on the boat had not been very easy. What my dad called an adjustment period I called a nightmare. But, after three months of traveling, we had a lucky break. In La Paz, there was another cruising boat with a 13-year-old boy aboard. Two weeks later, Glen and I could be seen endlessly boogie boarding (趴板冲浪) the crashing waves to the beach. After meeting Glen, cruising for me began to get better and better. At some point during these months, I decided to give this cruising idea a chance.
One year later, we continued touring through the South Pacific. I was learning new skills and learning how to work independently. I often took a five-hour watch during the dark hours of long passages. This was quite a bit of responsibility to hand over to a 13-year-old, especially considering I was in charge of adjusting sails as the conditions changed, and keeping an eye and ear out for any problems. Almost everybody in the cruising community treated me as an adult while still understanding I was a child, thereby giving me the flexibility to make childish mistakes.
As of this writing, my family has now been aboard for three years. We have plans to return to Canada in 12 months and, similar to how I opposed moving onto the boat, I am now completely opposed to moving off it. I have so much fun and learn so many things on this boat that I can’t imagine ever returning “home”, a place I hardly even remember.
1. What does the underlined word “sullen” in the first paragraph probably mean?| A．Upset. | B．Calm. | C．Confused. | D．Astonished. |
| A．Overcoming the fear of nightmares. |
| B．Having fun with someone of his age. |
| C．Learning how to work independently. |
| D．Making a breakthrough in boarding skills. |
| A．Stubborn but reliable. | B．Childish but adaptable. |
| C．Inconsiderate but flexible. | D．Dependent but responsible. |
| A．Benefits of the Cruising Lifestyle |
| B．First Day aboard Island Packet 445 |
| C．What Motivates a Teenager to Change His Lifestyle |
| D．How a Young Sailor Learns to Love the Cruising Life |
When I was a kid, my parents and I lived near the forest. They often told me that our family was a team that needed to work together for the household to function smoothly. There was always an abundance of work to do — cooking, cleaning, and walking dogs. I volunteered to walk our dog, Max, who had been adopted one month before. I never dared let this giant dog off the lead (牵狗绳), just in case he took off.
One morning, we were walking along in the forest when Max started pulling on the lead. At first, I was able to hold on despite the wet ground from a recent shower. But the more I tried to stop him pulling, the more it turned into a tug of war. And thanks to the slippery ground, I lost.
Pulling his lead, Max shot off like a bullet, leaving me screaming behind. I chased him but lost my footing and fell face-first into some mud. I stumbled (踉跄) to my feet, but looking ahead, I found him running back towards me. I thought he was going to stop and give me his “Sorry” look. But instead, the dog shot past me and returned after a while.
As soon as we got home, my mother immediately attended to Max with a warm towel and a doggy treat. I thought seeing me stumbling and covered in mud, I would also get a warm cup of tea and a motherly kiss. Instead, I got a very loud lecture about letting the dog loose in the forest.
I felt frustrated. It wasn’t fair that she didn’t understand how difficult it was to control Max. I fought back, “Stop lecturing me! Why is everything my fault?” With these words, I stormed into my bedroom and slammed the door shut.
In the evening, I heard my mother call Max and take him out. It wasn’t long before I heard my mother screaming and the door opening again.
注意：1. 续写词数应为150个左右；
2. 请按如下格式在答题卡的相应位置作答。
I walked out of my room.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Dad stepped in, suggesting that we work together to train Max.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________观点 | 比例 | 理由 |
支持 | 70% | 1.骑自行车的益处：节约能源、有益身体健康等 2.汽车带来了空气污染和交通堵塞等问题 |
反对 | 30% | 骑自行车上学浪费时间且不安全 |
2.可适当增加细节,以使行文连贯。
参考词汇:1.survey调查 2.traffic jam交通堵塞
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1. What is the conversation mainly about?
| A．Fighting fires. | B．Detecting fires. | C．Using fires. |
| A．Around 50. | B．About 400. | C．Over 8600. |
| A．Size of a car. | B．Size of a plane. | C．Size of a sports field. |
| A．Saving animals. | B．Saving the trees. | C．Saving humans. |
1. How many people died in a landslide in 2003?
| A．About two hundred. | B．Over one thousand. | C．About two thousand. |
| A．Growing grass. | B．Cutting down trees. | C．Growing population. |
| A．Growing more forests. |
| B．Chopping down the old forests. |
| C．Getting busy in protecting our country. |
