【推荐1】阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。

The Sponge(海绵)City

Between 1950 and 2018, flooding in China damaged     1     (near) 15 billion acres of land. The nation isn’t alone. According to climate change predictions, extreme rainfall and flooding     2     (be) going to increase worldwide, and cities are especially weak. That’s     3     plants, soils, and trees, which naturally absorb and store groundwater, are much     4     (few) compared to highways and buildings.

Located     5     the banks of the Yangtze River in eastern China, Zhenjiang is just one of the country’s zones at high risk for floods. In response to this     6     (grow) risk, it was one of 16 pilot locations for the “sponge city" project in 2015. The goal is to transform at least 20 percent of the land into permeable(可渗透的)surfaces,     7     include parks, rain gardens, green roofs, and sidewalks. so that neighborhoods can absorb heavy rains. Since the effort took off, Zhenjiang     8     (expand) green space. built rain gardens. and set up storage systems to clean and reuse rainwater and floods. Some 658 Chinese cities have also carried out     9     own sponge city designs to adapt to the local geographical needs.

Meanwhile, other areas at risk of urban flooding across the globe are making their own greening projects     10     (help) absorb heavy rainfall, from Philadelphia’s Green Acres program to Cairo’s rooftop garden initiative(倡议).

【推荐1】语法填空

The Amazon rainforest, the largest rainforest in the world, crosses into eight countries, including Brazil and Peru on the South American continent. It covers     1     area of around 6 million square kilometres. It is named after the Amazon River,     2     is close to 6,400 kilometres in length,     3     (support) many different ecosystems, which give this area the richest biodiversity on the Earth, with one tenth of known species in the world living in the area.

There are     4     (variety) of plants in the Amazon rainforest. Of the 390,000 plant species known to us, over 40,000 can be found there. The forest’s different levels support an     5     (believe) variety of wildlife. Each level of the forest forms its own little world, home to different kinds of living things.

There are more than 1,300 species of birds and over 400 species of mammals living in this forest. Among them     6     (be) jaguars, which feed     7     at least 87 species.

The Amazon rainforest is not only home to numerous species of animals and plants but also known as the“lungs of the planet”, because it breathes life     8     the planet by fixing carbon and producing over 20 per cent of all the Earth’s oxygen. But over the past 50 years, about 17 per cent of the rainforest     9     (disappear) due to human activities. And some species are also in danger of     10     (extinct). It is time for us to do something to protect it.

【推荐2】语法填空

Why is Amsterdam a good city for cycling?

The idea of “white bikes”     1     (begin) about 50 years ago, and ever since then, people in Amsterdam have been enjoying the benefits of cycling. Flat and therefore convenient for bikes Amsterdam is a good city for cycling. With all its     2     (convenient ) Amsterdam has become very popular with cyclists-an amazing 38% of all trips     3     (make) by bike. That's how it gets the nickname“ the City of Bicycles”.

In the 1960s, a group of cycling fans came up with an idea     4     it would be better for both people and the environment if only bicycles were allowed in the city. They painted hundreds of bicycles white and placed them in many areas around Amsterdam     5     people to use free of charge. Soon after, however problems came up and the “white bikes” all disappeared—    6     (thief) stole them all in a matter of weeks!     7     in 1999 the “white bikes” returned with a computer tracking system to record their every move! Thanks to the ideas and efforts of many you can now enjoy     8     Amsterdam with air and easy transport.

Nowadays, the idea of “white bikes” has pedalled     9     (it) way around the world In China more and more cities have their own “white bike” programmes. Both the locals and tourists like to use     10     (share) bikes because bike-sharing is a cheap and easy way to save energy, reduce air and noise pollution, and enjoy the benefits of exercise in cities.

【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.

COVID offers rare chance for scientists to study quieter oceans

The economic slowdown caused by the COVID-19 pandemic led to a sharp drop in shipping traffic around the world,     1     (give) scientists a rare chance to observe quieter oceans.

One international project has been conducted to listen to the sounds of the sea to study     2     the reduced shipping activity has affected sea life.

Many scientists have long dreamed of the chance to observe the sounds of a quiet ocean. One of     3     is environmental scientist Jesse Ausubel. He leads the Programme for the Human Environment at The Rockefeller University in New York.

Ausubel once dreamed aloud about the possibility during a speech to university students. In such an ideal environment, researchers could listen to underwater communications between blue whales hundreds of kilometres apart. Scientists could carry out the observations without human influences,     4     the goal of understanding the ways industrial activity affects sea life.

Ausubel told the Reuters news agency that at first he suggested one year of “quiet ocean”, a period during    5     shipping would come to a stop, or at least be greatly slowed down. But he realized that such a period was not realistic and dropped his goal to one month. Then, he hoped for just a few hours.

His desire to create a quiet ocean experiment    6     (draw)interest from about 100 supportive scientists ever since.

    7     the coronavirus led to an extreme economic slowdown that stopped shipping traffic, the chance came. Leaders of the experiment made efforts    8     (establish)a network of listening stations to pick up ocean sounds across the world.

The stations applied hydrophones,     9     (use)for listening and recording underwater sounds. In May 2020, the group reported it had helped set up 130 underwater listening stations.

Ausubel noted that orcas, dolphins and humpback whales communicate using high-frequency sounds that do not travel far. So they often gather in     10     (deep) waters. He said this may have caused some animals to move closer to once-busy ports.