1.非选择题- (共2题)
(1)取穗发芽时间相同、质量相等的红、白粒小麦种子，分别加蒸馏水研磨、制成提取液(去淀粉)，并在适宜条件下进行实验。实验分组、步骤及结果如下：
| 分组 步骤 | 红粒管 | 白粒管 | 对照管 | |
| ① | 加样 | 0.5 mL提取液 | 0.5 mL提取液 | C |
| ② | 加缓冲液/mL | 1 | 1 | 1 |
| ③ | 加淀粉溶液/mL | 1 | 1 | 1 |
| ④ | 37 ℃保温适当时间，终止酶促反应，冷却至常温，加适量碘液显色 | |||
| | | | | |
| 显色结果 | ＋＋＋ | ＋ | ＋＋＋＋＋ | |
注：“＋”数目越多表示蓝色越深
步骤①中加入的C是________，步骤②中加缓冲液的目的是________。显色结果表明：淀粉酶活性较低的品种是________；据此推测：淀粉酶活性越低，穗发芽率越________。若步骤③中的淀粉溶液浓度适当减小，为保持显色结果不变，则保温时间应________。
(2)小麦淀粉酶包括α淀粉酶和β淀粉酶，为进一步探究其活性在穗发芽率差异中的作用，设计了如下实验方案：
①X处理的作用是使________。若Ⅰ中两管显色结果无明显差异，且Ⅱ中的显色结果为红粒管颜色显著________白粒管(填“深于”或“浅于”)，则表明α淀粉酶活性是引起这两种小麦穗发芽率差异的主要原因。
②还可以用____________试剂来检验淀粉水解后的产物，使用时要求：现配现用、混合使用，还要__________________。若Ⅰ中两管显色结果无明显差异，且Ⅱ中的显色结果为红粒管颜色显著________白粒管(填“深于”或“浅于”)，则表明α淀粉酶活性是引起这两种小麦穗发芽率差异的主要原因。
(1)若蛋白外切酶处理该多肽，则会得到________个氨基酸。写出所破坏的化学键的结构简式________________。
(2)短肽A.B.C比四十九肽的氧原子数少________个。
(3)该四十九肽只有第________号位为赖氨酸，而苯丙氨酸存在于第________号位上。
(4)若D这个二十一肽中含有以下图示部分，图中有_____种R基，该肽链至少有______个游离的羧基。若D的分子式为CxHyOzNmSn，组成该肽的氨基酸只有下图中的几种，则含有①的氨基酸有_________个，③的氨基酸有_________个。
(5)若通过酶切等方法确定某多肽由甘氨酸C2H5O2N，丙氨酸C3H7O2N，半胱氨酸C3H7O2NS组成，称取此多肽415 g，完全水解得到氨基酸505 g，已知组成此多肽的氨基酸的平均相对分子质量为100，每摩尔多肽含有S元素51 mol。则一分子此多肽由________个氨基酸组成。
2.单选题- (共6题)
| A．缺镁时叶片变黄 |
| B．人体缺铁时会得贫血症 |
| C．动物血液中钙盐的含量太低会抽搐 |
| D．缺磷会影响ATP的合成 |
| A．还原糖、DNA的鉴定通常分别使用双缩脲试剂、甲基绿 |
| B．鉴定还原糖、蛋白质和DNA都需要进行水浴加热 |
| C．斐林试剂用于蛋白质的鉴定实验需要蒸馏水 |
| D．脂肪、蛋白质鉴定时分别可见橘黄色颗粒、砖红色沉淀 |
| A．该20肽含有的肽键至少为20个 |
| B．该20肽游离的氨基和羧基至少各为1个和4个 |
| C．肽酶Y完全作用后产生的多肽共含有氨基酸19个 |
| D．肽酶X完全作用后产生的多肽中氧原子数目比20肽少了1个 |
B. 
C. 
D. 
| A．某种单糖A为果糖，它与葡萄糖缩合失去1分子水后形成的物质①不会出现在动物细胞中 |
| B．若物质③作为动物细胞中储存能量的物质，物质③水解后均可以维持血糖浓度 |
| C．若物质②中含鸟嘌呤碱基，则某种单糖A为脱氧核糖 |
| D．物质②④与甲基绿吡罗红的亲和力不同，经染色后可显示为绿色或红色 |
| A．在最基本生命系统中，H2O有自由水和结合水两种存在形式 |
| B．细胞内结合水/自由水的比值，种子萌发时比休眠时低 |
| C．有氧呼吸时，生成物H2O中的氢来自线粒体中丙酮酸的分解 |
| D．H2O在光下分解，产生的[H]将固定的CO2还原成(CH2O) |
3.选择题- (共1题)
Do you remember the last time you read a book, or a magazine? Is checking e-mails or updating microblog your daily reading habit? If you're one of those who don't make a habit of reading regularly, you might be really out.{#blank#}1{#/blank#}
Stress Reduction
No matter how much pressure you have at work, in your personal relationships, or other issues in daily life, it all just slips away when you lose yourself in a great story.{#blank#}2{#/blank#}
Knowledge
Everything you read fills your head with new information, and you never know when it might come into use.{#blank#}3{#/blank#}Besides, you might lose everything else—your job, your money, even your health, but knowledge can never be taken from you.
Vocabulary Expansion
{#blank#}4{#/blank#} As a result, this will gradually enlarge your everyday vocabulary. Then you might become more knowledgeable and well-spoken, which can increase your self confidence and even help you get promotions more quickly.
Better Writing Skills
Exposure to well-written work has a great effect on your own writing. In other words, writing styles of other authors will influence your own work.{#blank#}5{#/blank#}
Now that reading has so many benefits, step away from your computer and go hunting for something new to read!
A. Here are some benefits of reading.
B. Here are some suggestions for your health.
C. The more you read, the more words you gain exposure to.
D. This goes hand-in-hand with the expansion of your vocabulary.
E. A well-written novel can bring you pleasure, and allow you to relax.
F. The more knowledge you have, the better-equipped you are for your life.
G. That is why beginners always learn how to write by reading the works of others.
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【1】题量占比
非选择题:(2道)
单选题:(6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：3
5星难题：0
6星难题：4
7星难题：0
8星难题：1
9星难题：0