In 2009, Whitacre received a video of a girl     1     was singing one of his works. Inspired by the girl’s video, he also asked his fans to make videos, which he then joined together into one performance. His first virtual choir,“ Lux Aurumque”, had 185 singers from 12 different     2     (country). It has received millions of views on the Internet. Since then, the virtual choir     3     (become) a worldwide phenomenon.

Nowadays, millions of people log onto TikTok (Douyi n in Chinese) to watch     1     is called Mukbang (Chibo in Chinese). It might seem strange, but these videos are surprisingly satisfying to watch. It     2     (allow) people to “eat” with others even though they are at home alone. However, there is a dark side to Mukbang. The way     3     which people eat food in most of these videos isn’t healthy. Some Mukbangers eat too much food and it makes their audience uncomfortable. This could encourage bad habits which might lead to serious eating problems.

Reading is a unique human experience. Just by skimming our eyes over some words, we can     1     (mental) travel across time and space. But reading can also be hard, especially when we’re faced with a difficult text.     2     (make) it an easier and more rewarding experience, you’d better read in print whenever possible. One reason for doing so is that our eyes are     3     (little) likely to skim past printed words than those on screen. Plus,     4     (learn) content on a physical page helps the brain make a men tal map of the information , which in turn makes it easier to remember details in future.

Hunters used dogs to help track and kill pandas in China until the country declared     1     law to protect the species. But dogs are still threatening the safety of this species.

Researchers     2    (begin) their investigation when two captive-born(圈养出生的) pandas, which had been released into Liziping Nature Reserve, were attacked by dogs.

There are dogs in panda reserves because there are villagers     3    (live) near the reserves and people have dogs. An adult panda is quite able to defend     4    (it) against one dog. However,     5     is hard to beat a pack of dogs.

In the study     6    (publish) in Scientific Reports, the researchers found dogs can wander more than 10 kilometers a night, some of     7     even live in the reserves. Earlier research found that pandas need a habitat of     8    (rough) 114 square kilometers to thrive (茁壮成长). Although most of the nature reserves for the pandas are large enough     9    (maintain) their populations, the panda’s territory could become smaller if dogs become part of it.

“The Chinese government has vaccinated(给……接种疫苗) the dogs and helped the villagers either remove the dogs or control them all the time. So things are getting much     10    (good),” James Spotila said.

The correct and quick reaction can make the difference between life and death. If a typhoon is approaching, close and lock all windows and doors, and tie down large outdoor objects so that they do not blow away. During a typhoon, you should do your best to keep your head down and stay inside. If you have to go outside, always exit     1     (use) the stairs. When you are out, stay away from trees, large signs and light poles. Remember to inform yourself of     2     is going on. Pay attention to news updates     3     (confirm) whether the danger is gone. These tips will help keep you safe and sound in the face of a typhoon.

Pompeii was a typical Roman city. Trading ships bringing imports to the city or carrying exports overseas, along with golden pleasure boats for     1     rich, were crowded together in the glassy water of the port. The boats of the fishermen moved     2     (rapid) in all directions. Above all, the cloud-capped top of Mount Vesuvius appeared. Its ashy rocks, now dark, now light, told a story of past eruptions that might have warned the city what was to come! Nearly seventeen centuries had rolled away before the city of Pompeii was dug from its silent resting place. Its walls were fresh as if     3    (paint) yesterday; not a single colour changed on the rich pattern of its floors. The     4    (remain) of their beautiful city survive to remind us that human lives burn bright and short.