![](https://wkrtcs.bdimg.com/rtcs/image?w=52&md5sum=e90c9fd4e47c6d6d2147811cae170dbe&sign=712b5b65d9&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=102&ipr={"t":"img","w":"52","h":"28","dataType":"png","c":"word/media/image1.png","imgOriW":39,"imgOriH":21})
![](https://wkrtcs.bdimg.com/rtcs/image?w=625.26666666667&md5sum=e90c9fd4e47c6d6d2147811cae170dbe&sign=712b5b65d9&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=102&ipr={"t":"img","w":"625.26666666667","h":"917.4","dataType":"png","c":"word/media/image3.png","imgOriW":1737,"imgOriH":2487})
![](https://wkrtcs.bdimg.com/rtcs/image?w=628.6&md5sum=e90c9fd4e47c6d6d2147811cae170dbe&sign=712b5b65d9&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=102&ipr={"t":"img","w":"628.6","h":"939.93333333333","dataType":"png","c":"word/media/image4.png","imgOriW":1698,"imgOriH":2487})
![](https://wkrtcs.bdimg.com/rtcs/image?w=639.46666666667&md5sum=e90c9fd4e47c6d6d2147811cae170dbe&sign=712b5b65d9&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=102&ipr={"t":"img","w":"639.46666666667","h":"928.26666666667","dataType":"png","c":"word/media/image5.png","imgOriW":1722,"imgOriH":2493})
![](https://wkrtcs.bdimg.com/rtcs/image?w=632.73333333333&md5sum=e90c9fd4e47c6d6d2147811cae170dbe&sign=712b5b65d9&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=102&ipr={"t":"img","w":"632.73333333333","h":"938.26666666667","dataType":"png","c":"word/media/image6.png","imgOriW":1708,"imgOriH":2496})
![](https://wkrtcs.bdimg.com/rtcs/image?w=627.73333333333&md5sum=e90c9fd4e47c6d6d2147811cae170dbe&sign=712b5b65d9&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=102&ipr={"t":"img","w":"627.73333333333","h":"952.46666666667","dataType":"png","c":"word/media/image7.png","imgOriW":1695,"imgOriH":2514})
初一生物参考答案
一、选择题
1. B 2.D 3、A 4、A 5.D 6、D 7、C 8、B 9、A 10、D 11、C 12、B 13、A 14、B 15、 A 16、 D 17、C 18、C 19、C 20、B
二、非选择题
21、（1）甲状腺激素（2）形成单一变量 对照 （4）早 短 （5）甲状腺B
22、（1）小脑 条件（2）1→3→5→4→2（3）舒张 气体扩散 （4）[ a ] 右心房 D 肾小管的重吸收
23、（1）传染源 易感人群（2）切断传播途径（3）特异性免疫（4） 不可以
24、（1）③④⑤ ④ 肾小囊（2）血细胞和大分子蛋白质； （3）滤过； （4）胰岛素
25、 （5分） （1） 视网膜 [5]视神经 视觉中枢 （2）4晶状体 （3）瞳孔
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