何照顾动物的。

　　2．What do we know about the club?

　　A．It offers services unconditionally.

　　B．It pays for their use of the barn.

　　C．It lets mothers care for animals.

　　D．It allows mothers to push kids.

　　D　解析：推理判断题。根据第四段中的"Most are driven to the barn by their mothers"可推知， 该俱乐部让孩子的妈妈督促孩子参与农场活动， 故选D项。

　　3．How does Carly Playforth feel about the experience?

　　A．Suspicious． B．Moved.

　　C．Appreciative. D．Opposed.

　　C　解析：观点态度题。最后一段首句是段落主旨句，作者引用Carly Playforth的话是为了进一步说明照顾动物教会孩子们的珍贵东西， 比如责任。 由此可知， Carly Playforth对这种经历是赞赏的(Appreciative)。

　　4．What is the passage mainly about?

　　A．Kids' life on a sold farm.

　　B．Valuable lessons learned on the farm.

　　C．A special club intended for Lexington kids.

　　D．A club activity of caring for farm animals.

　　D　解析：主旨大意题。根据文章内容可知， 本文重点介绍的是FCL俱乐部借助一个农场举办的活动--让孩子们亲自照顾动物， 在这一过程中， 孩子们获益匪浅。 故D项概括最为全面。

　　B

　　(2019·昆明高三摸底调研测试)A new study shows that rising levels of planet­warming gases may reduce important nutrients(营养物) in food crops.

Researchers studied the effects of carbon dioxide on rice．In the experiment, scientists grew 18 kinds of rice in fields in China and Japan. They set carbon dioxide levels to what scientists are predicting for our planet by the end of the century. Rice grown under high carbon dioxide conditions had, on average, 13 to 30 percent lower levels of four B vitamins and 10 percent less protein(蛋白质). The crops also had 8 percent less iron and 5 percent less zinc