题目内容：

Our mother earth is going through a very tough situation and we, the entire human race,are destroying our environment consciously or unconsciously without even realizing its results.Now we have to act very smartly and plan something to sustain(保持) what we still have,getting all necessary support from nature to lead healthy lives.

Gardening is always an excellent and environmentally friendly idea. If you can go forsustainable(可持续的) gardening, then it will be even more useful for all. Gardening is afavorite hobby for many. It is time to channelize your hobby towards a more meaningfulmotivation.

When we do gardening we need to use different ingredients to grow plants. Some of themare natural resources like water, soil, sunshine, and many things like this. Using these resourcessmartly is a part of sustainable gardening. Some simple techniques include: use less water andorganic things to grow plants; try to store rainwater so that you can use them for gardening; tryusing less energy to drive devices; avoid using plastics in any form while gardening; reuse theleaves from your garden to fertilize them. These are the basic sustainable measures. To do sowe need to have proper knowledge about gardening and its requirements so that we can useproper resources without wasting any of them.

In today’s busy life we don’t get much time to spend on our environment. Gardening givesus a chance to do so. We can also have some pesticide-free and fresh food if we grow them inour garden. This is the right time to do some good to protect our own environment andgardening is one of the easiest ways. Do you want to start gardening, but you’re not sure how?Click here: http://www. gardenhowto. com.

1.What does the underlined word “channelize” in Paragraph 2 refer to?

A. Cause.    B. Transform.

C. Direct.    D. Associate.

2.Which of the following belongs to a sustainable measure?

A. Using advanced electrical machines.

B. Avoiding fertilizers.

C. Watering plants with collected rainwater.

D. Clearing away the leaves.

3.What is the benefit of sustainable gardening?

A. It requires little water.    B. It needs no fertilizer.

C. It breaks up plastics.    D. It doesn’t waste any resource.

4.Where is the passage probably taken from?

A. A newspaper.    B. The Internet.

C. A guidebook.    D. A science report.