笔试部分（共45道题满分90分） 第一部分选择题（共50分） 一、阅读理解（共20小题，每小题2分；满分40分） 第一节阅读下面语言材料.从每题所给的A、B、C、D四个选项中选出最佳选项。 Things prepared: ·a potato that has sprouts(发芽) ·a flower pot with soil(土壤) ·a camera Observation: Day One The colour of the soil looks darker because it has just been watered.In the centre of the pot,a small sprout has grown,from the potato under the soil. Let's call it Buddy.Buddy is green and yellow. Day Six Without much change in the past six days,today Buddy has grown taller. Day Eleven Buddy is getting larger!Three more new sprouts have grown around Buddy!Green leaves have grown on the new sprouts,but they have not fully grown yet. Day Thirteen Buddy continues to grow taller.The leaves on the new sprouts have grown a bit.More new sprouts have grown from under the soil. Day Fifteen The leaves on the other sprouts are 3 cm tall.They're so green. Conclusion(结论)： Growing potato plants needs plenty of water.If the soil is dry,the potato will fail to grow. Besides,the temperature needs to be right.If it is too cold,it won't grow.
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