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.

Documentary on poverty alleviation (扶贫) to hit cinemas

Documentary film Rooting is due to hit cinemas nationwide     1     April 20, highlighting the stories of villagers in Yunnan Province’s Shawa Village     2     presenting the village’s changes over four years.

Lately, a trailer (预告片)     3     (release), focusing on the only road in the village of Fugong County.     4     (live) deep in the mountains near the Nujiang Canyon, the     5     (village) could only communicate with the outer world by travelling via a dangerous mountain track. As China’s campaign poverty alleviation deepens,     6     proper road was finally built for the village.

“This film features realistic problems in that remote village, giving credit to the contributors behind the scene and their efforts. That’s     7     the film ends with a line: ‘This film is dedicated to all those     8     have contributed to poverty reduction in China,’” said Chai Hongfang, the film’s director.

On March 17, the film held a special screening at the 2023 International Forum on Poverty Governance and Global Development, joined by more than 190 government officials and experts from 20 countries and four international organizations aiming     9     (exchange) views on poverty governance, rural building, modernization and sustainable development.

Apart from being     10     (public) screened, the film will also be screened in more than 100 Chinese universities and countries along the Silk Road Economic Belt and 21st Century Maritime Silk Road.

Every Saturday night Mama would sit down by the kitchen table and divide the money     1     Papa had brought home into several parts. Each part had     2     different use. For example, the big silver pieces were for the rent. In our     3     (day) life, Mama tried her best not to draw money out     4     her Bank Account, however hard the life was. When Nels wanted to go on to high school, my family members and I did our best     5     (earn) or save money instead of     6     (go) to the Bank. To get enough money, Nels     7     (volunteer) to work in Dillon’s grocery after school; Papa decided     8     (give) up smoking and I planned to look after the Elvington children every Friday night.

Twenty years later, when the check of my first story came, I hurried over to Mama’s and asked her to put     9     in her Bank Account. She had to admit that she had never been inside a bank.

Actually, Mama’s Bank Account mentioned many times by Mama was just     10     (make) us children feel secure.

Six weeks before his 97^th birthday, Giuseppe Paternò fulfilled the dream of a lifetime: He     1     (get) a university degree.

Mr. Paternò’s     2     (graduate) has inspired news reports around the world, partly because     3     his age. But he has also drawn attention because his life story speaks of commitment, a theme that has resonated (产生共鸣) as millions of schoolchildren in Italy and elsewhere face extraordinary uncertainty during the coronavirus pandemic.

Born in Palermo in 1923, the first of seven children in a “ very poor family ” , Mr. Paternò began working soon after     4     (finish) elementary school. It was only after he retired, in the mid-1980s, that he returned to his books.

“ His story proves that dreams can come true and that you can remain young — if not in age at least in spirit — if you develop interests. ” said Rosella Cancila, his essay adviser and     5     professor of history at the University of Palermo.

Italy’s university system is based on a three-year degree,     6     (follow) by a two-year master’s course. University officials are hoping that Mr. Paternò     7     (continue) his studies.

He isn’t so sure. “ I have to admit that in this moment, I don’t know     8     I would handle it with the same spirit. ” he said, noting that all the attention had been a bit tiring. Still, Mr. Paternò said, he would     9     (probable) register anyway. “ I want to keep my     10     (choice) open. ”

Climbing Mount Everest was once a feat(壮举) reserved for only the bravest mountaineers.These days even inexperienced or elderly climbers try to get to the top of the world.

Twenty years ago, climbers in their 60s     1     (have) just a one-in-eight chance of getting to Everest's summit(峰顶), but now the odds are closer to one in three.

The fortunes of first-time Everest climbers have improved because     2    the rise of the commercial climbing business.In     3     1990s, experienced guides began leading groups of new climbers.Today more than 24 companies offer the service.Everest enthusiasts with little climbing experience can pay tens of thousands of dollars to have their hands     4     (hold) most of the way up.

Better weather forecasting has helped, too.Travelling from the base camp to the top of the mountain     5     (take) around four days, and success depends     6    (heavy) on weather conditions along the way.Spotting a suitable “window” of good climbing weather was difficult thirty years ago.With the     7     (develop) of technology, forecasting has vastly improved.

On May 23nd, 396 climbers attempted     8     (reach) the summit in one day.The result was a long queue along a ridge(山脊)in the “death zone” near the top,    9     might have contributed to the death of some of the eleven climbers.

It still pays to treat the     10     (world) highest peak with the most respect.