1.综合题- (共2题)
（1）从图中可以看到，使用某种杀虫剂消灭害虫，开始使用的一至三年效果较_____，后来随着年限延长，杀虫剂效果越来越_____．
（2）用达尔文的自然选择学说来解释以上的现象：
①害虫抗药性越来越强是因为杀虫剂对害虫起来了_____作用．在此过程中，能生存下来的个体一般具有一些微小的_____，即抗药性．从这里我们可以看出，自然选择和生物进化都是_____（定向或不定向的）．
②从图中曲线可以看出，使用杀虫剂1年后的第六年，害虫适应了具有杀虫剂的环境，这种适应的形成是_____的结果．当第七年使用杀虫剂2时，害虫由于不适应改变了的环境而大量死亡，经过再次积累，新的_____重新适应环境．
2.单选题- (共5题)
| A．物种是可变的 | B．过度繁殖、生存斗争 |
| C．选择的不定向性 | D．用进废退，获得性遗传 |
| A．从低等到高等 | B．从水生到陆生 | C．从简单到复杂 | D．以上三者都是 |
| A．快速地进行，短期内会产生新的物种 |
| B．进行得十分缓慢，经过许多亿年才进化成今天丰富的生物界 |
| C．使低等动物得以淘汰，高等动物得以生存 |
| D．使水生生物逐渐淘汰，陆生生物得以生存 |
3.选择题- (共12题)
—Sorry, there isn't ______, but we still have some green tea.
—Sorry, there isn't ______, but we still have some green tea.
One morning a fox sees a cock. He thinks, “This is my breakfast.”
He comes up to the cock and says, “I know you can sing very well. Can you sing for me?” The cock is glad. He closes his eyes and begins to sing. The fox sees that and catches him in his mouth and carries him away.
The people in the field(田) see the fox. They cry, “Look, look! The fox is carrying the cock away.” The cock says to the fox, “Mr. Fox, do you understand? The people say you are carrying their cock away. Tell them it is yours. Not theirs.”
The fox opens his mouth and says, “The cock is mine, not yours.” Just then the cock runs away from the fox and flies into the tree.
回答下面5个问题, 每题答案不超过5个词。
4.填空题- (共1题)
-
【1】题量占比
综合题:(2道)
单选题:(5道)
选择题:(12道)
填空题:(1道)
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【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：1
5星难题：0
6星难题：3
7星难题：0
8星难题：4
9星难题：0