---Why does the river smell terrible? ---Because large quantities of water _______
have been polluted
举一反三
- Pure hydrogen does not occur naturally on Earth in large quantities, and it is locked up in enormous quantities in water, hydrocarbons, and other ______. One of the challenges of using hydrogen as a fuel comes from being able to efficiently extract hydrogen from these compounds (化合物).
- Why is the Yellow River “yellow”? A: Because the river suffers from soil erosion. B: Because the color yellow is the royal color. C: Because the first Emperor named it “Yellow River”. D: Because the river was named after the Loess Plateau.
- When taken in large quantities some drugs can cause permanent brain damage. A: lasting B: serious C: terrible D: temporary
- The major problem is the need for large quantities of water and ______ to grow the crops. A: food B: fertilizers C: pesticides D: chemicals
- The major problem is the need for large quantities of water and ______ to grow the crops. A: fossils B: fertilizers C: frontiers D: fosters
内容
- 0
Which ancient town does not represent the picturesque scenery of water towns in the Yangtze river basin.（ ）
- 1
In case of poisoning, immediately give large quantities of soapy or salty water in order to （）vomitting. A: control B: clean C: induce D: stop
- 2
Why does the man often find himself in a raft on the river during lightning storms?
- 3
What terrible weather! I simply can’t get the car ___. Why not try ___the engine with some hot water?
- 4
Why does he feel proud Because he ______ .