【推荐1】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。

With hospitals filled up with COVID-19 patients, NASA has announced it will be delaying an upcoming satellite launch. The liquid oxygen     1     (need) to fuel the flight is also needed in hospitals,     2     doctors use the important resource to keep     3     (dangerous) sick COVID-19 patients alive.

“Medical oxygen is     4     priority (优先) of our members,” says Richard Craig, vice president of technical and regulatory affairs for the Compressed Gas Association.

A shortage of truck drivers     5     the certifications needed to transport the oxygen is only adding to the problem, and there are     6     (concern) about other rocket launches being pushed back as well.

At the recently held Space Symposium in Colorado, SpaceX president Gwynne Shotwell     7     (invite) anyone with access to liquid oxygen to reach out. “We certainly are going to make sure the hospitals are going to have the oxygen that they need but for anybody who has liquid oxygen     8     (spare), send me an email,” she said.

SpaceX founder Elon Musk tweeted that the shortage was “a risk,     9     not yet a limiting factor”. So far, 26 rocket launches     10     (plan) by the company.

【推荐2】阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

Young tech influencers know the sky's the limit

From robots to aircraft, a new generation is providing thrust     1     innovation, Wang Qian reports.

While most people     2    (stick) at home last year due to the COVID-19 pandemic, feeling isolated and maybe even caged in, some young people were thinking outside the box and reached for the sky as they created an impressive array of work, from robots to rockets.

It's difficult to predict what will be     3     next big thing to materialize from this tech-savvy generation. On video sharing and live streaming platform Bilibili,     4    seems that anything is possible. No dream, it seemed, was beyond    5    (imagine). At first, they did not know each other but were united by a spirit of creativity.

When Bilibili uploader Lin Xiao, nicknamed Lingshiqi online, had too many bags to carry, instead of asking someone for help, the then 18-year-old spent 200 days    6    (handle) the problem. The devil was in the detail you could say. He built a robot, which can follow him     7     he goes, and upon which he can ride. The robot's name? Devil!

Tech influencer Peng Zhihui,     8    online name is Zhihuijun, is already a household name. A 16-minute video clip features the 28-year-old Huawei engineer designing and creating a robotic arm, named Dummy.     9    (power)by Huawei's 5G technology, it can be     10    (remote) controlled to do the most precise activity. To prove it, Dummy can even stitch grape skins together.

【推荐3】Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

WHO Declares the Coronavirus Outbreak a Global Health Emergency

The World Health Organization declared on Thursday that the new coronavirus outbreak was a global health emergency, acknowledging that the disease represents a global risk, which emerged last month.

The declaration-officially called a Public Health Emergency of International Concern-serves notice to all United Nations member states that the world’s top health advisory body    1    (rate) the situation as serious.

Countries can then decide    2     to close their borders, cancel flights, screen people arriving at airports or take other measures.

The decision came as cases have begun to appear in people    3     had not travelled to virus-affected regions during the outbreak.

Health officials on Thursday reported the first case of person-to-person transmission of the new coronavirus in the United States.

The patient is    4     husband of a woman who was the first reported case in Chicago, officials said at a news briefing. The woman, who is    5     her 60s, had returned to America from travelling. She was hospitalized but appears to be doing well, said Dr Jennifer Layden, an epidemiologist at the Illinois Department of Public Health.

Her husband, who had not travelled with his wife, recently began showing symptoms and was immediately isolated in the hospital. Lab tests have now confirmed that he    6    (infect) with the coronavirus, Dr Layden said.

Health officials are tracking the places visited by both patients and identifying all close contacts     7    (monitor) them. The public is at low risk, officials said.

Person-to-person transmission may occur if someone who is sick breathes, talks, coughs or sneezes in the vicinity of others. Respiratory droplets carrying the virus    8     then travel from the sick person to other people or surfaces.

    9    (base) on the transmission patterns seen in China and other countries, experts have expected to see some person-to-person spread in the United States, said Dr Robert Redfield, director of the Centers for Disease Control and Prevention. “We understand that this may be concerning,” Dr Redfield said. “But our assessment remains that the immediate risk to the American public is low.”

The disease is not spreading widely in the US and people who have not had close contact with    10     who recently travelled to COVID-19 stricken places are unlikely to get infected.