题目内容

Watch the video clip and fill in the blanks with the exact words you have just heard.From space, our planet appears to be more than . But despite the water covering of the planet’s surface, more than half the world’s population endures extreme water for at least one month a year. And current estimates predict that by , up to 20 more countries could be experiencing water .How much of it is to us?of earth’s liquid is , too loaded with minerals for humans to drink or use in agriculture. Of the remaining 3% of potentially , more than two-thirds is frozen in ice caps and glaciers. That leaves less than 1% for all life on Earth, spread across our planet in rivers, lakes, underground aquifers, ground ice and permafrost. And this limited supply isn’t evenly around the globe.In fact, water – which we use to drink, cook, and clean – only 3.6% of humanity’s water . Another goes to the wide range of factories which make the products we buy each day. But the remaining of our water consumption is all spent on a single industry: .On a personal level, food waste is the first step to reducing water use, since one-third of the food that leaves farms is currently or thrown away. Solving this problem requires a solution, and small decisions can reservoirs around the world.

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1. He writes on both sides of the sheet to ________paper.

A. converse
B. convert
C. conserve
D. consent

2. The computer laboratory is an essential for students.

A. source
B. force
C. resource
D. reinforce

3. After a debate, members of the committee finally voted to approve the funding.

A. contentious
B. abstentious
C. contented
D. contended

4. The rate of population growth reached a peak in 1999 and declined in years.

A. consequent
B. frequent
C. infrequent
D. subsequent

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