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Read the texts on Page 32¡«33 carefully and then choose the best answer.

1£®What's the text mainly about?

A£®The beauty of the Li River.

B£®What some tourists did led to the water pollution.

C£®The ways to increase crop production.

D£®Some measures to reduce water pollution in the Li River.

2£®What is the main idea of the second paragraph?

A£®Some tourists threw garbage into the Li River.

B£®Some tourists didn't care about the Li River.

C£®The local population rose rapidly.

D£®What caused water pollution in the Li River.

3£®What can we learn from the last two paragraphs?

A£®People can do nothing to reduce water pollution in the Li River.

B£®Some measures have been taken to reduce water pollution in the Li River.

C£®Tourists are not allowed to visit the Li River.

D£®The local authorities never inspect the Li River.

4£®With these measures, what is people's attitude towards the future of the Li River?

A£®Positive.    B£®Concerned.

C£®Negative.    D£®Indifferent.