Here are the most popular events in Los Angeles this year.
Earth Day L. A.
Phone number: (213) 972-8080
Earth Day L.A. offers Downtown L.A.’s citizens, workers and visitors ideas, a place to drop e-waste and solutions on how to do little harm to our planet in daily life. The annual event features performances, composting (制肥堆), and plant giveaways as well as electric vehicle exhibits, which are all free to the public (and to a select number of school groups).
Jackalope Pasadena Spring 2020 Fair
Phone number: (323) 989-2278
Where Local Culture Meets Craft (手工艺)!Come and shop—over 200 handmade makers from fashion, home design, art and more all in one place at Jackalope Pasadena coming up April 25th & 26th. Enjoy a bite to eat from a local food truck or take part in a free yoga class offered throughout the weekend.
Explore Caltech
Phone number: (626) 395- 4652
You’re invited to Explore Caltech as the Institute brings science and engineering out the lab and into the community, sharing the excitement of discovery through family-friendly open-air laboratories, a series of 10- minute talks by Caltech researchers, and a keynote discussion.
Yallwest
Phone number: (310) 395-3204
There are over 100 authors and presenters including New York Times Best Sellers along with local and widely- acknowledged young adult and middle grade writers, plus famous TV, film, video game, and comic creators. A day of book signings, food trucks and rock’ n’ roll.
1.What do we know about the event Earth Day L.A.?
A.It charges less than the other events.
B.It offers people the performing techniques.
C.It contributes to participants’ going green.
D.It leads participants to prefer an electric vehicle.
2.Where can people buy handmade products?
A.Yallwest. B.Earth Day L. A.
C.Explore Caltech. D.Jackalope Pasadena Spring 2020 Fair.
3.What will visitors call if they’re interested in science?
A.(213) 972-8080 B.(323) 989-2278
C.(626) 395- 4652 D.(310) 395-3204
高二英语阅读理解简单题查看答案及解析
Fever, coughing, sore throat… most of us at one time or another have had these symptoms. What causes them? In fact, many diseases are caused by viruses, including some deadly ones like AIDS, SARS and COVID-19, also known as the novel coronavirus pneumonia, outbreak in China.
What are viruses? How can viruses cause so much trouble? Viruses are very small particles (颗粒) which are about one millionth of an inch long. Unlike human cells or bacteria, viruses aren’t living organisms- they can't reproduce on their own. Instead, they invade the cells of living organisms to reproduce, spread and take over.
Virus can infect every living thing- from plants and animal down to the smallest bacteria. For this reason, they are always a potential danger to humans. Viruses lie around our environment all of the time, waiting for a host cell to come along. They can enter our bodies by the nose, mouth, eyes or breaks in the skin. Once inside, they try to find a host cell to infect. For example, HIV, which causes AIDS, attacks the T-cells of the immune system.
But the basic question is, where did viruses first come from? Until now, no clear explanation for their origin exists. "Tracing the origins of viruses is difficult, "Ed Rybicki, a scientist at the university of Cape Town in South Africa, told Scientific American, "because viruses don' t leave fossils and because of the tricks they use to make copies of themselves within the cells they've invaded.”
However, there are three main theories to explain the origin of viruses. First, viruses started as dependent organisms, then became parasites(寄生者)。Second, viruses evolved from pieces of DNA or RNA that "escaped" .from larger organisms. Third, viruses co-evolved with their host cells, which means they existed alongside these cells.
For the time being, these are only theories. The technology and evidence we have today cannot be used to test these theories and identify the most reasonable explanation. Continuing studies may provide us with clearer answers or future studies may find that the answer is even more mysterious than it now appears.
1.What can we learn about viruses from the text?
A.Viruses are really small living organisms.
B.Viruses have nothing to do with the common cold.
C.Viruses can't reproduce unless they find a host cell.
D.Viruses enter our bodies mainly through our mouths, noses and hair.
2.Why are viruses always a potential danger to humans?
A.TH most infect all the living things around us.
B.They prefer evolving with the cells in our body.
C.They can copy human's DNA and evolve successfully.
D.They can enter our body far more easily than other living things.
3.Which of the following might explain the origin of viruses?
A.They evolved from the DNA of animals.
B.They evolved along with their host cells.
C.They evolved from the fossils of large organisms.
D.They evolved from parasites to independent organisms.
4.What can we conclude from the last paragraph?
A.The author is confident about future virus research.
B.Viruses will become more like bacteria as they evolve.
C.Viruses live longer in human host cells than in animals.
D.It may take a long time to understand the origin of viruses.
高二英语阅读理解中等难度题查看答案及解析
“What kind of rubbish are you?” This question might normally cause anger, but in Shanghai it has brought about complains over the past week. On July 1st, the city introduced strict trash-sorting regulations(垃圾分类制度) that are expected to be used as a model for our country. Residents must divide their waste into four separate categories and throw it into specific public bins at scheduled times.
Violators(违规者) face the possibility of fines and worse. They could be hit with fines of up to 200 yuan($29)。 For repeat violators, the city can add black marks to their credit records, making it harder for them to obtain bank loans or even buy train tickets.
Shanghai authorities are responding to an obvious environmental problem. It generates 9 million tons of garbage a year, more than London's annual output and rising quickly. But like other cities in China, it lacks a recycling system. Instead, it has relied on trash pickers to examine carefully through the waste, plucking out whatever can be reused. This has limits. As people get wealthier, fewer of them want to do such dirty work. The waste, meanwhile, just keeps piling up.
Many residents appear to support the idea of recycling in general but are frustrated by the details Rubbish must be divided according to whether it is food, recyclable, dry or hazardous, which can be confusing, though there are apps to help work it out. Some have complained about the rules surrounding food waste. They must put it straight in the required public bin, forcing them to tear open plastic bags and throw it by hand. Most annoying are the short windows for dumping trash, typically a couple of hours, morning and evening. Along with the monitors(监控) at the bins, this means that people go at around the same time and can keep an eye on what is being thrown out. After all, no one wants to look bad.
1.Why does the author mention the question “What kind of rubbish are you?” in the first paragraph?
A.To blame the new rules.
B.To advocate a good rule.
C.To lead in the topic of the text.
D.To tell us people’s complains in Shanghai.
2.What is the main direct environmental problem in Shanghai?
A.The massive traffic. B.The increasing garbage.
C.Lack of a recycling system. D.Lack of trash pickers
3.What makes the residents upset most about the rules?
A.Short scheduled time for throwing the trash.
B.Being fined when blamed due to improper behavior.
C.Being observed by monitors when throwing the garbage.
D.Complex distinction among the four categories of trash.
4.What is the best title for the text?
A.How To Sort Out Trash In Our Life.
B.People In Shanghai Meet New Challenge.
C.Shanghai Authorities Solved An Environmental Problem.
D.Different Attitudes Towards The Trash-sorting Regulations.
高二英语阅读理解中等难度题查看答案及解析
Addyson Moffitt is an 8-year-old from Kansas City, Missouri, Maurine Chelagat is a 9-year-old from a village in Kenya called Bartabwa. It might not seem as if the girls have much in common, but when they met at a dinner two years ago, in Kansas City, they instantly hit it off. ''We had this one little red ball to play with,'' Addyson told others. ''We didn't have any electronics or phones, no iPads or TV. It was just us playing.''
The dinner was hosted by the nonprofit group World Vision International. In some parts of the world people must walk several miles each day to collect water from a stream or another water source. Often, the water is polluted, World Vision builds wells, pipelines, and rain catchers in these communities. Addyson was at the dinner because her family supports World Vision. Maurine was there because her village been without clean water. World Vision fixed that by building a water station there. Addyson was inspired by Maurine. "People helped Maurine so she could have clean water, and kids are dying because they don't have. Races are one way World Vision raises money to pay for its water projects. Runners pledge to run a have it, "she says. ''I want to help.''
Races are one way World Vision raises money to pay for its water projects. Runners pledge to run a race, often a 26-mile marathon or 13-mile half marathon. They ask people to support them by donating to World Vision. Addyson decided to run the 2017 Kansas City Half Marathon for World Vision. At age 7, she was one of the youngest-ever runners in the race, and had to get special permission to participate.
Addyson spent four months training with her parents, waking up before 6 a.m. to run. Meanwhile, she started fundraising. She carried a jug of water around her neighborhood, to park conversation about World Vision's work, She bused tables at a restaurant for tips. She asked friends to make donations as birthday presents. By October 2017, when Addyson ran the race, she'd raised more than $20,000. She's the youngest person in World Vision history to raise more than $10,000. In 2018, she ran again-and raised $36, 000. But Addyson's work is not finished. "My goal is for every kid to have clean water," she says.
1.What does the underlined phrase "hit it off" in the first paragraph mean?
A.had a quarrel B.did homework together
C.played jokes on each other D.got along well with each other
2.Why could Addyson and Maurine meet at a dinner?
A.They met each other only by chance.
B.Both of their villages are in need of clean water.
C.They both were invited by World Vision International.
D.Addyson wanted to help Maurine through World Vision.
3.What does the last paragraph mainly tell us?
A.Addyson tried her best to raise money.
B.Addyson trained hard to run Half Marathon.
C.World Vision held many races to raise money.
D.Addyson had donated lots of money to World Vision.
4.Which word can best describe Addyson?
A.brave B.caring C.understanding D.grateful
高二英语阅读理解中等难度题查看答案及解析
If you’re single this Valentine's Day, don't settle for another night of being alone. Single ladies and dudes can celebrate, too. Below, five holidays from around the world to celebrate instead of Valentine's Day this year.
Singles Awareness Day
In the U.S., we have “Singles Awareness Day”--a humorous anti-Valentine's Day celebrated on February 14 or 15, depending on your preference. On these days, singles toast their uncoupled status.
Ystävänpäivä or Friendship Day
Finland has a more ideal take on Valentine's Day: February 14 is considered Ystävänpäivä or “Friendship Day”, which is marketed as a celebration of friends. (We'd recommend adopting this holiday if you're looking for an occasion to hang out with your best friends.)
Black Day
April 14 in Korea is known as Black Day, a holiday where singles gather in local restaurants and drown their sorrows in cheap, but delicious bowls of jajangmyeon--- a Chinese-Korean noodle dish swimming in chunky black bean sauce, and topped with pork and veggies. The holiday has been popular over the last decade, and we can't say we're surprised. It's hard to be sad about being single when you're dipping into a bowl of something that delicious.
Single's Day
November II marks Singles' Day in China, an unofficial holiday that started in the 1990s as a protest Valentine's Day and that's now a day where singles buy stuff--a lot of stuff- for themselves. In 2013, China's biggest online shopping company took in more than $5.75 billion in online payments on Single's Day-two and a half times the total American retailers(零售商) netted on Cyber Monday the same year.
International Quirkyalone Day
Another option for singles looking to get in on the celebratory action on February 14? International Quirkyalone Day, a “do-it-yourself celebration of romance, friendship, and independent spirit," according to the official site. The founder of the event swears her holiday is not an anti- Valentine's Day; instead, it's a celebration of all kinds of love: romantic, platonic, familial, and yes, self-love. "In other words, it's a day to do whatever you want, with whoever you want. We can get behind that and have a great time.
1.Which of the following holidays would you like to celebrate if you like delicious food?
A.Singles Awareness Day. B.Ystävänpäivä.
C.Black Day. D.Single’s Day.
2.What would Chinese people like to do on Single's Day?
A.Shopping online. B.Whatever they like.
C.Hanging out with families. D.Gathering in local restaurants.
3.In which part of a website will the text be?
A.Business B.Opinion C.Lifestyle D.Culture
高二英语阅读理解简单题查看答案及解析
China's largest search engine Baidu has said it will make its latest artificial intelligence (AI) technology accessible to developers and businesses as part of the company's latest move into AI, big data and cloud computing.
AI solution "Tianzhi" was launched at a cloud-computing summit held in Beijing Wednesday. It includes services in three fields: sensing technology, such as image and voice processing, machine learning, and deep learning, an advanced form of machine learning, said Zhang Yaqin, CEO of the Nasdaq-listed company, at the summit.
Developers can access facial or voice recognition, algorithms(演算法) for data analysis and projections, and deep learning applications, Zhang said, adding that the technology could help users innovate in their sectors.
"With more devices connected to the cloud, enterprises will use cloud computing and AI more frequently," said Wu Hequan, an academician at the Chinese Academy of Engineering, "Open AI technology can play a bigger role."
The company also revealed a plan to invest 10 billion yuan (1.45 billion U.S. dollars) in cloud computing in the next five years and establish an innovation center, which will serve 10 million enterprises.
1.What is the main idea of paragraph one?
A. Baidu will further develop its latest AI technology.
B. Baidu has attracted developers’ and businesses’ attention.
C. Users will be able to access Baidu’s latest AI technology.
D. A company will move to AI, big data and cloud computing.
2.“Tianzhi” includes services in the following fields EXCEPT _____.
A. sensing technology
B. voice processing
C. machine learning
D. deep learning
3.What does the underlined sentence in paragraph four probably mean?
A. It’s important for AI technology to be open.
B. AI technology is more important than the cloud.
C. People aren’t aware of the importance of AI technology.
D. Enterprises will hardly benefit from open AI technology.
4.What is Baidu’s next move according to the last paragraph?
A. Reveal a plan to invest in cloud computing.
B. Invest 10 billion yuan to serve enterprises.
C. Get invested from enterprises in the next five years.
D. Invest in computing and build an innovation center.
高二英语阅读理解中等难度题查看答案及解析
In the past two decades,the Chinese economy has undergone many reforms in an effort to compete more effectively on the international market.These reforms included allowing foreign banks to offer credit cards to Chinese citizens.Now,researchers at the University of Missouri (MU) have found about 30 percent of Chinese urban households now own at least one credit card and the growth rate of credit card adoption has been an average of 40 percent per year between 2004 and 2009.
Rui Yao,an assistant professor of personal financial planning at MU,says that this large growth in such a small amount of time has positive and negative implications for the Chinese economy.
''With more and more people taking advantage of credit cards in China,it certainly increases potential consumer buying power,''Yao said.'' However,we found that more than 90 percent of credit card users were unaware of safety issues existing in credit card use and more than 60 percent had little knowledge of the consequences of credit card debt.This lack of knowledge could create problems as credit card ownership is expected to grow at a rate of 11 percent a year. ''
Yao found that while 72 percent of Chinese credit card holders were never late on their payment,only 55 percent were able to pay the full balance.She also found that 70 percent of Chinese credit card holders said that credit cards contributed to overspending.
Yao believes the Chinese could benefit from financial education designed to help them plan for their financial future and encouraging the Chinese to take advantage of debt in a responsible fashion is important for the Chinese economy. ''Appropriate use of debt can help households improve their quality of life as well as spur economic growth through an increase in market purchases'' Yao said.
1.Why did China allow foreign banks to offer credit cards to Chinese citizens?
A.To increase Chinese citizens’ confidence in economy.
B.To respond to the urgent demand for financial reforms.
C.To improve competitiveness in the international market.
D.To persuade more Chinese citizens to accept credit cards.
2.What is mainly talked about in Paragraph 3?
A.The potential market purchases in the future.
B.Weaknesses caused by lack of knowledge of credit cards.
C.The rapid growth in credit card ownership.
D.Advantages and disadvantages of using credit cards.
3.A lot of figures are used in the text in order to________.
A.record the valuable data B.provide concrete evidence
C.introduce a research method D.give a detailed description
4.The underlined word ''spur'' in the last paragraph is closest in meaning to ''________''.
A.control B.delay
C.promote D.discourage
高二英语阅读理解中等难度题查看答案及解析
I always believed that my parents had a good marriage, but just before I, the youngest of four children, turned sixteen, my belief was painfully tested. My father, who used to share in the chores around the house, gradually started becoming downhearted. From the time he came home from his job to the time he went to bed, he hardly spoke a word to my mom or us kids. The strain on my mom and dad’s relationship was very evident. However, I was not prepared for the day that Mom told us that Dad had decided to leave. All that I could think of was that I was going to become a product of a divorced family. It was something I never thought possible, and it grieved me greatly. I kept telling myself that it wasn’t going to happen, and I went totally numb when I knew my dad was really leaving. The night before he left, I stayed up in my room for a long time. I prayed and I cried and I wrote a long letter to my dad. I told him how much I loved him and how much I would miss him. I told him that I was praying for him and wanted him to know that, no matter what, Jesus and I loved him. I told him that I would always and forever be his Krissie...his Noodles. As I folded my note, I stuck in a picture of me with a saying I had always heard: “Anyone can be a father, but it takes someone special to be a daddy.”
Early the next morning, as my dad left our house, I sneaked out to the car and slipped my letter into one of his bags.
Two weeks went by with hardly a word from my father. Then, one afternoon, I came home from school to find my mom sitting at the dining room table waiting to talk to me. I could see in her eyes that she had been crying. She told me that Dad had been there and that they had talked for a long time. They decided that there were things that the both of them could and would change and that their marriage was worth saving. Mom then turned her focus to my eyes.
“Kristi, Dad told me that you wrote him a letter. Can I ask what you wrote to him?”
I found it hard to share with my mom what I had written from my heart to my dad. I mumbled a few words and shrugged.
A few days later my dad was back. We never talked about the letter, my dad and I. I guess I always figured that it was something that was a secret between us.
1.What happened to the author’s parents when she was sixteen?
A.They left her alone. B.They got divorced.
C.They shared in the chores together. D.They had a good marriage.
2.What is the meaning of the underlined word “grieved” in Para.1?
A.made sb. Angry B.made sb. delighted
C.made sb. sad D.made sb. greedy
3.What can we learn from the passage?
A.The author handed the letter directly to her father.
B.Her father wrote back to the author when he finished reading the letter.
C.The author’s letter made a difference to her father.
D.The author shared what she wrote with her mother.
4.What might be the best title for the passage?
A.A Promise Kept B.A Letter
C.A Broken Family D.A Great Daddy
高二英语阅读理解中等难度题查看答案及解析
Have you ever noticed advertisements which say “Learn a foreign language in 6 weeks, or your money back! From the first day your pronunciation will be excellent. Just send…” and so on? Of course, it never happens quite like that. The only language that is easy to learn is one’s mother tongue. And think how much practice that gets! Before the Second World War people usually learnt a foreign language in order to read the literature of the country.
Now speaking a foreign language is what most people want. Every year millions of people start learning one. How do they do it? Some people try at home, with books and records of tapes; some use radio or television programs; some use computers and network; others go to evening classes. If they use the language only 2 or 3 times a week, learning it will take a long time, like learning a foreign language at school. A few people try to learn a language fast by studying for 6 or more hours a day. It is clearly easier to learn the language in the country where it is spoken.
However, most people cannot afford this, and for many it is not necessary. They need the language in order to do their work better. For example, scientists and doctors chiefly need to be able to read books and reports in the foreign language. Whether the language is learnt quickly or slowly, it is hard work. Machines and good books will help, but they cannot do the student’s work for him.
1.According to some advertisements, you ______.
A. have to pay your money if you cannot master a foreign language in 6 weeks
B. needn’t pay your money if you cannot learn a foreign language in 6 weeks
C. must pay your money if you cannot master a foreign language in 6 weeks
D. will be paid much money if you cannot learn a foreign language in 6 weeks
2.Now most people try to learn a foreign language in order to ______.
A. read the literature of the country
B. read books and reports
C. do their work better
D. go to foreign countries
3.Learning a foreign language is a hard job ______.
A. only for scientists and doctors
B. only for the students at school
C. for those people at home
D. for most people
高二英语阅读理解中等难度题查看答案及解析
Rapid progress in artificial intelligence, also called AI, and the wide use of robots across different industries are causing the worry about the growth in joblessness. People have different opinions on this development, and they mainly have focused on what to do to make sure that robots don't steal jobs.
Bill Cates, for example, have called for taxing(对…征税)robots that take away jobs. This has led to disagreement from other leading figures, such as Larry Summers, who thinks that robots are job creators and that it is totally wrong. Another idea is to use a basic income for all-the ides that everyone receives the lowest income-to pay for influence of technological unemployment. This idea also causes disagreement.
However, jobs are not created or lost because of a single technology, but because of the business system designed to make use of the power of the technology.
We have seen a similar example in history, with recorded music in the last century. It wasn't the 1930s recording technology itself that affected the jobs of the live musicians. It was its connection with radio broadcasting,jukeboxes(自动唱机)and the way businesses operated that led to the job losses. Hotels, restaurants and bars replaced live musicians with jukeboxes. A single recording could be placed over and over without requiring the appearance of the musicians.
The early recording of music destroyed the jobs of some live musicians and made them earn less money than before. The social dissatisfaction was largely about monopoly power(垄断势力)and less about the technology itself.
Job creation or loss has to be considered with everything considered. This is the best explained by looking at the difference between recorded music in the last century and robots now.
1.What's people's main attention according to the first paragraph?
A.Artificial intelligence. B.The growing opportunities.
C.Not letting robots take away jobs. D.Stopping the wide use of robots.
2.What does the underlined word "it" in paragraph 2 refer to?
A.The idea of taxing robots. B.The belief that robots steal jobs.
C.Rapid progress in artificial intelligence. D.Disagreement between leading figures.
3.What can we know about Larry Summers?
A.He agrees with Bill Gates' opinion. B.He thinks robots can create jobs.
C.He supports the idea of taxing robots. D.He praises using a basic income for all
4.What can we infer from the last two paragraphs?
A.There will be more social dissatisfaction in the future.
B.Monopoly power is a terrible social phenomenon.
C.We should tell job creation or loss with full consideration.
D.Recorded music is completely different from robots.
高二英语阅读理解困难题查看答案及解析