The Mars 2020 rover(02W), which sets off for the Red Planet this year, will not only search for traces of ancient life, but pave the way for future human missions, NASA scientists said Friday as they introduced the vehicle.
The rover has been constructed in a large, sterile room at the Jet Propulsion Laboratory in Pasadena, near Los Angeles, where its driving equipment was given its first successful test last week.
Shown to invited journalists on Friday, it is scheduled to leave Earth in July 2020 from Floridas Cape Canaveral, becoming the fifth US rover to land on Mars seven months later in February.
“It's designed to seek the signs of life, so we’re carrying a number of different instruments that will help us understand the geological and chemical context on the surface of Mars,” deputy mission leader Matt Wallace told AFP.
Among the devices on board the rover are 23 cameras, two “ears” that will allow it to listen to Martian winds, and lasers used for chemical analysis.
Approximately the size of a car, the rover is equipped with six wheels like the former US rover, Curiosity, allowing it to travel along rocky land.
Speed is not a priority for the vehicle, which only has to cover around 200 yards(180 metres) per Martian day -approximately the same as a day on Earth.
Fuelled by a tiny nuclear reactor, Mars 202(has seven-foot-long(2 metres) articulated arms and a drill to crack open rock samples in locations scientists identify as potentially suitable for life.
We are hoping to move fairly quickly. We'd like to see the next mission launched in 2026 which will get to Mars and pick up the samples, put them into a rocket and finally bring them back to the Earth, "said Wallace. NASA’s Mars 2020 will remain active for at least one Martian year, which is around two years on Earth.
1.What does the underlined part “pave the way” in Paragraph 1 mean?
A.Making preparations B.Finding suitable landing sites
C.Setting up research centers. D.Constructing roads.
2.What can we know about the Mars 2020 rover?
A.It looks much like a car with six wheels.
B.It is an updated of the US rover Curiosity.
C.It is solar-powered and can crack open rock samples.
D.It is able to perform different tasks on Mars in search of the signs of life
3.If you search the passage on the website of China Daily, where can you probably find it?
A.Lifestyle B.Regional
C.World D.Culture
4.What is the main idea of the passage?
A.The Mars 2020 rover has successfully passed its first driving test.
B.NASA is planning a new round of space exploration
C.Future human missions on Mars are on the way
D.A new rover will be launched to carry out scientific research on Mars
In advance of World Book Day on April 23, the Chinese Academy of Press and Publication released its 17th annual report on the study of Chinese people's reading habits on Monday.
Based on a survey that ranged from August 2019 to February 2020, the report showed 81.1 percent of adult Chinese surveyed have a habit of reading, whether in print or on digital devices, a slight increase of 0.3 percent from 2018. Wei Yushan, director of the academy, said the survey covered 55 cities and towns in the country and it can credibly represent the situation of the whole population.
In 2019, adult Chinese read on average 4.6.5 books in print and 2. 84 digital books, while in 2018 it was 4.67 and 3. 32, a small drop for both.
While the report said most Chinese feel they 're not satisfied with the amount of books they read in a year. 11.1 percent read more than 10 books in print, and 7.6 percent more than 10 e-books. As for children and young people under 17, "the results are more encouraging, according to Wei. The survey revealed they read 10.36 books a year on average, 1. 45 more than in 2018.
Audio(有声的) books are attracting more Chinese, as 30.3 percent of adults and 34.7 percent of minors had a habit of listening to audio books in 2019, increasing by 4.3 and 8.5 percent compared to2018. The report found mobile phones were the top choice of medium when Chinese people read. On average, adults spent 100.41 minutes a day on mobile phones, 15.54 minutes more than in 2018.
A closer look at the report shows people's priority when using the Internet was to socialize (60.2 percent), followed by getting news (59 percent) and enjoying video clips (56.9 percent). Only 20.5 percent of them used it to connect to books, newspapers or journals.
Still, there's good news in the data from younger readers. Wei said 94.3 percent of Chinese families with children under 8 had a habit of reading, and parents spent almost 25 minutes every day reading with their kids, 2.37 minutes more than 2018
1.What can we learn from the first two paragraphs?
A.The 17th World Book Day will be celebrated on April 23.
B.The report is released every year by the Chinese Academy of Press and Publication.
C.More than 80% of the adult Chinese prefer to read on digital devices than in print.
D.The survey was conducted throughout the country in2019.
2.What does "they"" in Paragraph 4 refer to?
A.Kids and teenagers
B.Adult
C.Students
D.The results
3.What can be inferred from the passage?
A.Chinese people spent more time reading audio books in 2018 than in 2019.
B.The report indicates Chinese readers' growing interest in online reading.
C.There was a drop in the number of books read by average adult Chinese in 2018.
D.More Chinese readers tend to read through the mobile phones.
4.What is Wei Yushan's attitude toward the data from younger readers?
A.Unclear B.Positive
C.Skeptical D.Casual
Carol Lee Lindner climbed into the 40-foot boat tied to the Fairmount Boathouse dock, and gave the new members their first lesson in the ancient sport of dragon boating.
The 25 women, aged 29 to 65, watched their coach carefully. All had breast cancer and survived. Their decision to join the Philadelphia Women's Dragon Boat Team was brave and crazy.
Over the months of training, one would be told that cancer had spread to her bones and another would be hospitalized for radiation treatment side effects. But these strong and determined women—each and every one of them—took part in the International Dragon Boat Racing Championship.
In theory, it's a terrible sport for women whose muscles and nerves have been damaged. Doctors generally advised them to avoid hard and repetitive arm exercise. But seven years ago, Canadian Donald Mckenzie, a sports medicine physician, showed dragon boating is good for survivors. “It builds both their physical and mental strength.” Mckenzie said.
Coach Lindner, 60, was inspired by that and included the 25 women in her three-year-old Philadelphia Women's Dragon Boat Team.
The survivors tried hard and did their best. No self-pity.
Renata Whitaker, her hair growing back, began feeling more confident. But she grew tired and easily got out of breath. She had to be in hospital for a week. As she got better she called Lindner, saying she had got well enough to be in the game. Lindner told her if she felt up to it, she would be with the team.
“But you are not going to paddle,” Lindner said, “Remember what I said, “To be strong, fit women for life. I want you by my side for the rest of our lives, not just for one race.”
These women tested their limits. A 500-meter race lasted about three minutes.
As the city darkened in the heat, the team finally paddled toward the Fairmount Boathouse.
Soon, the river was filled with the sounds of painful but happy women singing Merrily We Roll Along.
1.What do the twenty-five women have in common?
A.They are crazy about dragon boating
B.They are cancer survivors.
C.They were inspired by Donald Mckenzie and have trained together for three years
D.They have broken the record of the International Dragon Boat Racing Championships
2.Why did Lindner refuse Whitaker's request?
A.Because Whitaker wasn’t really good at paddling.
B.Because Whitaker easily got tired and out of breath.
C.Because Whitaker hadn't recovered completely.
D.Because a new paddler would be in Whitaker's place.
3.Which of the following will Mckenzie support?
A.Dragon boating will help repair patients' damaged nerves
B.Patients should feel sorry for themselves if they don t take part in dragon boat races
C.Dragon boating will benefit the patients physically and mentally
D.Cancer survivors should avoid hard and repetitive arm exercise
4.What can we know about Lindner?
A.She enjoys the sport of boat racing B.She is tough with her team members
C.She is also a cancer survivor. D.She is helpful and inspiring.
Do you want a part-time job to earn some extra money? Check out the list and find one that suits your fancy.
TECHNICAL SUPPORT
It seems almost everyone has a friend who is a technical genius. Such people earn money using their talent. If you are one of them, you could be responsible for technical support in your college or university and get your part-time job. You can enjoy the process of earning money while doing your favorite thing.
TUTOR
A lot of students hire a tutor to help them in high school or college. If you are good at some subjects, why not work as a peer tutor? You help your friends and earn money at the same time. If you know foreign languages, you can make more money. All you need to do is to make an appropriate advertisement of your services using college newspapers. One of the best things about being a tutor is that you can set your hours.
FITNESS INSTRUCTOR
If your college or university has a fitness center and if you are a sporty person, go and sign up to get this job. You will have an absolute free opportunity to engage yourself in sports. You need to be a good psychologist, because you are going to work with people and it'll be your job to persuade and motivate them to become sporty, healthy and strong. Being a fitness instructor is a perfect position for those who love to help other people and want to make more friends. OFFICE
WORKER
Nowadays many companies cooperate with college students giving them part-time jobs. Some of the major job duties of an office worker are answering calls and scheduling appointments. If you are interested in doing this job. contact the representatives of different companies to find out if they’re currently hiring anyone.
1.If you want to have a flexible schedule while earning some money, which of the following suits you most?
A.Technical support B.Tutor
C.Fitness instructor D.Office worker
2.Which of the following is NOT TRUE according to the passage?
A.As a part-time office worker. you are responsible for answering emails.
B.If you work as a fitness instructor, you should be sporty and sociable.
C.If you are good at foreign languages, you are able to earn more as a tutor.
D.The four kinds of part-time jobs are intended for college students.
3.How can one get a job as a part-time office worker?
A.By submitting the application
B.Through an online interview
C.By advertising on the newspaper
D.By contacting the representative of the company
假定你是李华，暑假在澳大利亚悉尼歌剧院参观时结识了当地青年Jack,参观过程中他为 你提供了很多帮助。在你即将回国之际，给他写一封感谢信。内容包括：
1.感谢他的帮助；2.你的收获与祝福。
注意：
1.词数：100左右；2.可适当增加细节，以使行文连贯。
参考词汇：悉尼歌剧院Sydney Opera House
Dear Jack,
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有 10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意： 1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者(从第11处起)不计分。
Last Friday we students in the five grade were organized to offer service at the railway station. We were dividing into small groups to finish different tasks. Upon their arrival in the early morning, we soon got down to help the others. Some picked up rubbish on the ground and provides information for passengers. Some helped the passengers with heavy luggages, and the rest taught passengers what to use the ticket vending machine. Tired as we were, we felt happily when receiving thanks. It is believed that if by helping each other we will make the society better place.
