Rescue and disaster relief forces, medical teams and urgent supplies are pouring into Northwest China’s Gansu Province and the neighboring Qinghai Province after a 6.2-magnitude earthquake jolted a Gansu county at a     1     (deep) of 10 kilometers at 11:59 pm Monday,     2     has caused 127 deaths as of press time.

More than 700 people were injured in the two provinces and dozens more were reported missing; more than 155,000 houses     3     (damage) or collapsed, according to media reports. President Xi Jinping has urged rescue efforts and proper arrangements for    4    (affect) people to ensure the safety of people’s lives and property.

Soon     5     the quake, a large transport aircraft arrived in Lanzhou, capital city of Gansu     6     (deliver) the emergency command group and supplies.

Dahejia Middle School is located in the severely affected county. The school principal told the media that all 2,100 students and 190 teachers have safely returned home     7     injuries. “We     8     (conduct) frequent drills at our school for fire and earthquake safety over the years,” Ma said,     9     (add) that “    10     only took about 5 minutes to evacuate the entire school”.

Chengdu is regarded by many as one of the happiest cities in China, as well as the home of pandas. It     1     (become) the first Asian city to be identified as a UNESCO City of Gastronomy in 2010.

Chengdu is a place where it seems to blur (难以区分) the boundaries between past and future. Its ancient temples, traditional alleys and historic architecture open a window into ancient China,     2     (take) you into a world of past impressive beauty. But what is really surprising is its focus on the future. Transforming into a center of technology, innovation and development, this city has     3     (ambition) plans to become a science city in southwest China.

Chengdu is not only rich in history and modernity, but also in flavor. This city is known     4     its spicy food, with bold flavors and centuries-old cooking traditions coming together to offer dining experiences     5     will delight all the senses. Chengdu’s most popular food, such as tongue-numbing mapo tofu and hotpot, is     6     feast for the palate (味觉). Hotpot works like this. A heat source     7     (place) on the dining table keeps a pot of soup stock simmering (煨), and a variety of Chinese foodstuffs and     8     (ingredient) are served beside the pot for the diners to put into the hot stock.

All this richness that Chengdu has to offer led to its selection as the host city for the 31stFISU World University Games. The athletic event was an opportunity not only     9     (show) Chengdu’s sporting spirit, world-class infrastructure,     10     (warm) and organizational skill, but also to promote friendship and cross-cultural understanding.

Marine biology is the study of the ocean’s plant and animal life. Marine life gives us food, medicine and other raw materials we need. It also supports tourism and provides us with an area of recreation.

    1     (difference)forms of life live in various areas of the ocean. Some are limited to coastal and shelf areas, while others live in the open sea.

Coral reefs     2     (find) in the tropical areas of the world, but they can also exist in colder water. Reefs are built by corals and other     3     (animal)that leave calcium on rocks. They are home to     4     vast variety of life forms. About half of the world’s coral reefs, however,are     5     danger because of global warming and a rise in sea temperatures.

Although we do not know very much about    6     kind of life forms exist in deep ocean trenches(深海沟), marine scientists have found a certain type of jellyfish(水母) in the Mariana Trench, the world’s     7     (deep)ocean area. These parts of the ocean     8     (usual)have little or no sunlight and many organisms(生物)here have to produce light     9     (they).

Marine scientists also study how waves and currents affect organisms     10     (live)in the oceans.

She was growing up, Camille Roberts always saw science in her future. Her parents are both doctors of chemistry and she wanted to follow     1     (they) example by going into research about     2     (medical).

The 24-year-old girl says her parents taught her the importance of giving others a hand, so she saw medical research as a way of     3     (help) improve society. Looking for education in such a field would     4     (probable) lead to a highly-paid job. So, in 2013, Roberts     5     (begin) studying biomedical engineering(生物医学工程) at George Washington University in Washington, D.C. During her four years there, she not only volunteered to do something     6     (use) in the city, but also worked as an assistant (助手) to several teachers, which introduced her     7     more personal ways to help people.

After completing     8     series of studies in 2017, Roberts took a research position at the National Institute of Mental Health. But she soon felt deeply unhappy. So in 2018, she was determined     9     (take) a job that she felt much more pleasant: teaching.

Many of Roberts’ former classmates and coworkers now have jobs     10     pay them much more than she makes, but Roberts says she would not trade more money for the creativity and purpose she now finds in her work.

Emerging evidence in humans suggests a     1     (typical) Western high-fat, high-sugar junk food diet can quickly weaken your brain's appetite control.

After offering volunteers a week-long binge (大吃大喝) of waffles, milkshakes and similarly rich foods, researchers in Australia found young and healthy ones scored worse on memory tests and experienced a     2     (great) desire to eat junk food, even when they were already full.

The findings suggest something is special in the hippocampus (海马体)-a region of the brain     3     supports memory and helps to regulate appetite. When we are full, the hippocampus is thought to quieten down our memories of delicious food, thereby     4     (reduce) our appetite. When it’s interrupted,     5     control can be seriously damaged. Over the years, extensive research on     6     (mouse) has found the function of the hippocampus is very sensitive to junk food, but recently this has been observed only in young and healthy humans.

In 2017, after a week of Western-style breakfasts of     7     (toast) sandwiches and milkshakes, researchers found participants performed worse on learning and memory tests which are typically dependent     8     the hippocampus.

Now, in this latest study the scientists of the team     9     (find) that not only do such high-fat, high-sugar diets impair memory in humans, but they appear to directly affect our ability     10     (control) our appetite.