It is reported that two thirds of our earth's oceans and three quarters of its land have been damaged by mankind.One million types of plants and animals could disappear by 2050，with a speed hundreds of times faster than over the last 10 million years.One fifth of all nations could see the environment on which we ourselves depend is being destroyed.
Our earth can only continue to support us if we protect its biodiversity（生物多样性）.It is the biological chain of plants and animals that hold our world together.Every life form,however tiny,is of great importance to the whole.Every breath of air we breathe and every mouthful of food that we take comes from the natural world.And if we damage the natural world,we damage ourselves.Indeed,the environment we live in is not only vital to our survival,but also powering the world's economy.The costs produced by our broken relationship with nature are rising every day.
The continuing destruction of the environment also quickens climate change and makes us feel weaker and even more vulnerable.The environment supports us,but climate change in turn harms the environment at the same time,making these two challenges two sides of the same coin.To make matters worse,damage to our ecosystems（生态系统）also has a bad effect on human health,by ruining our sources of food,medicine,water and oxygen.We even risk new diseases jumping from animals to humans.
From October 11-15，2021，world leaders gathered online for part one of COP-15（第十五届缔约 方会议），with the second part in face-to-face meetings in Kunming,from April 25 to May 8，2022.This is an extremely important moment to raise the level of ambition and commitments for nature.
Saving biodiversity is to save ourselves.What is needed most is a global plan to protect biodiversity,with new goals for the next decade that all countries support and provide money for the project.



What can be inferred from the first paragraph？ ______

A. Our planet we all live on is in great danger.
B. The damage to the environment is reducing.
C. Animals and plants have been existing peacefully.
D. Four-fifths of the countries create good environment.

What does the underlined word vulnerable in the third paragraph mean？ ______

A. optimistic
B. easily-hurt
C. extraordinary
D. realistic

What is the worst effect caused by the environmental destruction？ ______

A. Air and water pollution.
B. Abnormal usage of oxygen.
C. Lack of food and medicine.
D. Diseases from animals to humans.

What is the best title of the passage？ ______

A. New ways to develop new energy.
B. Methods to prevent and cure COVID-19.
C. Measures to raise money to control water pollution.
D. International cooperation to protect biodiversity Worldwide.