1.连线题- (共1题)
2.综合题- (共2题)
（1）蛙的发育经历了①_____，②_____，③幼蛙和④_____四个时期。
（2）像蛙这样幼体与成体的形态结构和生活习性差异很大的发育过程称为_____。
（3）稻田中的青蛙主要捕食_____，是庄稼的卫士，可以减少农药的使用，所以我们应该保护青蛙。
（1）人的有耳垂和无耳垂是一对_____性状。
（2）父亲的性状是_____（选填“有耳垂”或“无耳垂”），母亲的基因组成是_____。
（3）该夫妇生了一个女儿小丽是无耳垂，如果这对夫妇再生一个小孩，那么这个小孩是有耳垂的概率是_____。两个孩子这种现象在遗传学上称之为_____。
3.单选题- (共26题)
| A．若他们的孩子也是双眼皮，基因组成一定是Aa |
| B．他们的孩子是单眼皮的可能性更大 |
| C．基因A控制双眼皮性状 |
| D．若这对夫妇有四个孩子，则有三个孩子是双眼皮，一个孩子是单眼皮 |
| A．人类的红绿色盲 |
| B．由于水肥充足，玉米长得穗大粒多 |
| C．同一品种小麦，生长在阳光充足的杆粗穗大 |
| D．原本肤色相近的双胞胎兄弟因工作环境不同，肤色差异很大 |
4.选择题- (共2题)
Mr Brown was going away for a week. Before he left, he said to his son, "if anyone asks for me, you can tell him that your father has been out for doing something, and will be back in a week, then be sure to ask him to sit down for a cup of tea."
"OK, Dad," said his son. But he was afraid his son couldn’t remember this, he wrote these words down on a piece of paper and gave it to him. His son put it into his small pocket, took it out and looked at it every now and then.
Four days passed, but no one came to see his father. The boy thought that there was no man to come and that the piece of paper was of no more use for him, so he burnt it that evening.
The next afternoon, someone knocked at the door. The boy opened it. A man was standing at the door and said, "Where is your father?" The boy put his hand into his pocket at once and looked for the piece of paper. He could not find it. He suddenly remembered he had burnt it, so he shouted, "No more."
The man was very surprised. He asked, "No more? I met your father last week. When did it happen?"
"Burnt yesterday evening."
5.- (共1题)
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【1】题量占比
连线题:(1道)
综合题:(2道)
单选题:(26道)
选择题:(2道)
:(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：23
7星难题：0
8星难题：6
9星难题：0