题目: What is a traditional method used to keep the soil healthy?
A、 Avoiding too much use of chemicals.
B、 Replacing soil nutrients with fertilizers.
C、 Using the soil for organic p……继续阅读 »
题目: What point does the writer try to illustrate through the passage?
A、 Our quality of life is declining due to environment change.
B、 Damage to natural environment should be prev……继续阅读 »
题目: Why are large areas of forests cut down every year according to the passage?
A、 To provide wood for urban development.
B、 To turn the land into other uses.
C、 To grow grass for……继续阅读 »
题目: What is a main cause of global biodiversity loss?
A、 The disappearance of natural habitats caused by human activities.
B、 The increase of the average temperature in the world.
……继续阅读 »
题目: Additional pressure on our natural systems can result from ___________.
A、 the change of lifestyles of people in the developed countries
B、 the accelerated extinction rates of ……继续阅读 »
题目: Though different understandings exist, one thing people all recognize is that __________.
A、 more greenhouse gases are emitted than our land can absorb
B、 the world we are livi……继续阅读 »