1.非选择题- (共2题)
(1)常见的三种二糖中_______能用作还原糖的鉴定实验,单糖中具有还原性的是________和________。还原糖的鉴定常用的染色剂是_____________,它的使用方法是___________,该实验需要在______________条件下进行,实验结果是产生______________。
(2)脂肪可以被苏丹Ⅲ染成___________。本实验需要借助显微镜观察结果,换成高倍镜后转动________________调焦。实验过程中需要用到酒精,其作用是_________________。
(3)蛋白质的检测使用的染色剂是____________。该实验_________(需要/不需要)对试管加热,观察到组织样液被染成_________。
(4)在“观察叶绿体和细胞质的流动”实验中,观察细胞质流动所选用的参照物是_______,影响细胞质流动的速度有________________________________________等因素。

(1)该化合物是由_________个氨基酸失去_______分子水而形成的,这种方式叫做_______,该化合物叫_________。在形成时,相对分子质量减少了________。
(2)该化合物水解后可产生_____种氨基酸,造成氨基酸种类不同的原因是______不同。图中虚线框所示结构的名称为__________。
(3)蛋白质是生命活动的主要承担者,它除了有免疫功能和信息传递、调节机体的生命活动功能外,还具有______________、_______、_______等功能。
2.单选题- (共7题)

A. Mg和Fe都属于大量元素
B. 植物缺镁会影响光合作用
C. 人体缺铁会影响乙物质对氧气的运输
D. 甲的元素组成为C、H、O、N、Mg等元素

A. 水、蛋白质、糖类、脂质;N、H、O、C
B. 蛋白质、糖类、脂质、水;O、C、N、H
C. 水、蛋白质、脂质、糖类;H、O、C、N
D. 蛋白质、水、脂质、糖类;C、O、H、N
3.选择题- (共1题)
Although I didn't have any interest in being a school bus driver, I became one. Many years later, I was still working on the school bus. There are so many good reasons. Firstly, the talk brought me different kinds of information. I also got to hear all the family secrets of the newcomers. I have a toy bear who was a great comforter(安慰者) for the little ones. The kids got to look after him on the trip to school and he waited patiently for them to get on for the trip home.
Our bus would often pass a place where we could see some alpacas (羊驼) in front of a farm house. Little Michael would cry excitedly from the seat, “Look, Miss! Look at the camels!” He used to put his head out of the bus window. When I warned him that a little insect would come into his nose if he wasn’t careful, he smartly gave up the habit.
I remember a little girl got on the bus one morning 5 years ago and sobbed(抽泣) all the way to school. We arrived at the school gate. As she waited to get down the bus, she threw her arms around my neck and cried that her grandfather had died the night before.
A school bus driver needs to keep one eye on the road and the other on the mirror to watch what the little ones are doing down the back.
Now, it's important to think how many lives I've been responsible(负责的) for, and how many kilometers I've driven in order to get my passengers home safely during the 20 years. I've enjoyed it, but it’s time to rest and park my school bus.
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【1】题量占比
非选择题:(2道)
单选题:(7道)
选择题:(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:0
5星难题:0
6星难题:6
7星难题:0
8星难题:3
9星难题:0