2．What would be the effect of transportation of food?

　　A．It pollutes the food during the transportation.

　　B．It makes the cost of the food much higher.

　　C．It makes the food less fresh and tasteless.

　　D．It causes air pollution and global warming.

　　解析：选D。细节理解题。由第二段中的“Their 5,900mile journey in cargo ships and trucks gives off 7,000 tons of global warming pollution each year，and enough air pollution...”可知答案。

　　3．Which of the following may have a bad effect on the health of the planet?

　　A．Eating higher on the food chain.

　　B．Eating locally grown food.

　　C．Eating more organic produce.

　　D．Eating fresh and tasty food.

　　解析：选A。由第三段的内容可知本题应选A。

　　4．The main purpose of the passage is________.

　　A．to help local farmers grow and sell their produce

　　B．to tell people that imported food is less healthy

　　C．to warn people of the harmfulness of food transportation

　　D．to get local people to reject the imported food

　　解析：选C。推理判断题。文章向我们讲述了食品运输过程给环境带来的严重危害。由此可以推出本题应选C。

　　B

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