People have known the     1     (important) of keeping healthy and good life habit. Everyone     2     (want) to keep in good health. To keep healthy, we should have a     3     (balance) diet.

What should we do to keep healthy? I think     4     is important to have a good habit. We shouldn't spit in public places or throw litter about. We must make it     5     rule to wash our hands before meals or after toilets. It is important to go to bed early and get up early. It will keep us     6     (activity) during the day.     7     (do) morning exercises every day is also good     8     our health. We should keep the windows open when we are sleeping. We should have more water, fruit     9     vegetables. Above all, we should keep our hearts in a good state. Do you agree with me?

The better we get into good eating habits, the     10     (happy) our life will become.

By now it’s almost common knowledge that spending time in nature is good for you. Areas with     1    (many) trees tend to be less polluted, so spending time there allows you to breathe easier. Spending time outdoors contributes to good health, with blood pressure and stress     2    (reduce), and seems to motivate people     3    (exercise) more.

A survey showed that people     4    spend 2 hours in nature — either all at once or totaled over several shorter     5    (visit) — were more likely to report good health and psychological well-being than those with no nature     6    (expose). Remarkably, the researchers found that less than two hours offered no significant benefits. The two-hour benchmark (临界值)     7    (apply) to men and women, to older and younger folks and so on. Even people    8    long-term illnesses or disabilities benefited from time     9    (spend) in nature — as long as it was at least 120 minutes per week.

While the findings are based on     10    tremendous number of people, scientists caution that it’s really just a correlation. Nobody knows why or how nature has this benefit or even if the findings will stand up to stricter investigation.

Researchers discovered that people who go to live concerts live longer. Experts from University College London       1     (study) the lifestyles of over 6,700 British for the past 15 years. They found that the over-50s who     2     (regular) went to concerts were around 30 per cent less likely to die over the next 14 years. The researchers said the over-50s extended their life by taking part     3     the “receptive arts” art galleries, concerts, the theater, musicals, and the opera     4     (include). They examined how often the people went out and what kinds of events they attended. In addition to       5     (live) longer, concertgoers also had more fun.

Lead researcher Dr Fancourt said money played       6     big role in whether people went to concerts and engaged with the arts. Over 40 per cent of people in the least wealthy group never had access to    7     (culture) activities. The UK Health Secretary Matt Hancock believed there could be a lot of       8     (true) in it. He said the arts and culture could improve mental health and release loneliness. He recently announced plans for the UK’s National Health Service to use the arts     9     (improve) people’s wellbeing and health. “Generally, our results stress the importance of continuing to explore new social factors     10     affect our health,the researchers said.

3D bio-printing inside the human body could be possible thanks to a new soft robot. The device features a printing head directly mounted onto the tip of a soft robotic arm. The printing head, which consists of soft artificial muscles that allow it     1     (move) in three directions,     2     (work) very similarly to conventional desktop 3D printers.

The soft robotic arm can bend and twist and can be made at any length     3     (require). The printing nozzle (喷嘴) can be programmed to print various     4     (shape), or operated manually.     5     addition, a research team used a machine learning-based controller which can aid the printing process.

The team gave an     6     (explain) on how the device could     7     (potential) be used as an all-in-one surgical tool to perform a range of functions. They said this could be especially important in surgery to remove certain cancers.

The ability to carry out such multi-functional procedures was demonstrated on a pig’s intestine (肠) last month     8     the researchers say the results show that the device is a promising candidate,     9     can be a future development of     10     all-in-one endoscopic (内窥镜的) surgical tool. The next stage of development for the system is in vivo (活体的) testing on living animals to demonstrate its practical use.