Biodiversity is significant to our planet. 【小题1】 , human activities are causing a decline in biodiversity. According to the World Wildlife Fund, we 【小题2】 (lose) 60% of the world’s wildlife population in the past 40 years alone.

Each species in an ecosystem has a specific role to play, and if one species 【小题3】 (go) , it can have a series of impacts on the entire ecosystem. For example, if a predator species goes extinct, it can lead to 【小题4】 increase in the population of its prey, 【小题5】 can then lead to a decrease in the population of the prey’s food source.

The loss of biodiversity also has significant 【小题6】 (consequence). Many of our medicines and food crops are gained from plants and animals 【小题7】 (find) in nature. If we continue to lose biodiversity, we may lose potential sources of life-saving drugs and vital food sources.

Conservation efforts are crucial to protect biodiversity. This can include protecting endangered species, 【小题8】 (preserve) habitats, and reducing human impact on the environment. By protecting biodiversity, we can ensure that ecosystems continue to function 【小题9】 (proper).

In conclusion, biodiversity is essential to the health of our planet and our own well-being. It is important that we take steps to protect and conserve the 【小题10】 (vary) of life on Earth.

(A)

Concerns about microplastics are not new. They’ve been growing for more than a decade. Over the past two years, however, many creative solutions 【小题1】 (emerge)to address the problem on a local level, ranging from hoovering beaches to shooting bubbles up from river bottoms. Still, experts say there’s a need for a huge, coordinated effort 【小题2】 we want to curb the global issue: The world produces 400 million tons of plastic annually, and much of that material breaks down into tiny pieces that now pollute our planet.

The term microplastics was coined in 2004 by marine ecologist Richard Thompson after he discovered tiny bits of plastic littering British beaches. Since then, scientists have found microplastics—fragments less than 5 millimeters wide-nearly everywhere: in the deep sea, in Arctic ice, in the air. Even inside us.

A 2019 study in Environmental Science Technology estimated humans take in up to 100, 000 bits of plastic each day. It’s not just the physical presence of plastic inside the body 【小题3】 poses a potential problem; plastic’s chemical additives might affect different species’ tissues and organs, according to a 2021 study in Environmental Toxicology and Chemistry. However, there is disagreement in the literature as to how much microplastics 【小题4】 (harm)species, including humans. Some say larger pieces may pass right through our bodies while the 【小题5】 (tiny)pieces could enter our cells. More research is needed.

For a global view of this vast issue, some scientists in 2020 created a public database to track plastic removal innovations. For example, Hong Kong Polytechnic University researchers presented 【小题6】 unique idea in April at the Microbiology Society’s Annual Conference: a bacteria biofilm that could attract and trap microplastics at a wastewater treatment plant, 【小题7】 they flow into rivers and oceans.

CHINA has made ecological and environmental protection a national priority, being acutely aware that the country has to go to war against pollution. “We must 【小题1】 (firm) establish the concept of a socialist ecological civilization. We must develop a harmonious relationship between man and nature and 【小题2】 (do) everything to protect the environment for future generations,” said President Xi Jinping.

It would be fascinating to see 【小题3】this impacts everyday life in China, in terms of the response of ordinary people, results, 【小题4】the state of ecological awareness.

One of the popular activities is Riding for Kicks.

China’s bike-sharing companies are praised as 【小题5】environmentally friendly alternative to the overcrowded public transportation system in most Chinese cities. The 【小题6】 (arrive) of dockless bikes in recent years is an innovation that 【小题7】 (welcome) agreeably in urban areas since its launch. Ofo Inc. was one of the first companies 【小题8】 (launch) a dockless e-bike-sharing scheme in Beijing. Shortly afterwards, other companies such as Mobike jumped on the bandwagon in major Chinese cities, and many other start-ups emerged. COVID-19 has also contributed【小题9】the popularity of this means of individual transportation. Hellobike reports that in all Chinese cities 【小题10】it operates, so-called “long-distance” trips have doubled since April.