题目内容

请你先口头回答下列问题,然后填写你的个人档案。

(1)What's your name?

(2)Are you a boy or a girl?

(3)When is your birthday?

(4)How old are you?

(5)What type of blood are you?

(6)What's your favorite food?

(7)What's your favorite sport?

(8)What's your favorite color?

(9)What's your favorite number?

(10)Who's you best friend?

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(8分)材料   苏云金芽孢杆菌生长到一定阶段,菌体内一端形成芽孢,另一端形成一种被称为伴孢晶体的蛋白质晶体。菌体破裂后释放出芽孢和伴孢晶体,伴孢晶体本身并无毒性,是毒素的前体。当昆虫吞食伴孢晶体后,在肠道内碱性环境条件和特定的蛋白酶的作用下,伴孢晶体变成毒素分子,能使小肠上皮细胞萎缩退化,昆虫停食,最后脱水死亡。科学家利用苏云金芽孢杆菌的这个特性,在实验室大量培养,制成生物农药,洒在农作物上,让害虫吃后中毒死亡。或利用基因工程技术,把苏云金芽孢杆菌的抗虫基因转到农作物体内,培育出抗虫品种。请根据上述材料回答下列问题:

(1)上图中,切断a处的工具酶是____________ ,切断b处的酶是             ______。
(2)作为目的基因载体的细菌质粒往往要带有一个抗生素抗性基因,该抗性基因在基因工程中主要用于_____________________________________________________。
(3)苏云金芽孢杆菌的抗虫基因导入棉花细胞是否表达,最简便的检测方法是________________________________________________。
(4)苏云金芽孢杆菌的抗虫基因转到农作物体内后,也能产生伴孢晶体蛋白,说明___________________________。
(5)转基因工程改良动植物品种,最突出的优点是_____________________________ 。
(6)大面积种植抗虫棉对该地区生态平衡会造成怎样的影响?                                                   
①________________                       _____________
②_____________________                          _____。
阿司匹林(乙酰水杨酸)已应用百年,成为医药史上三大经典药物之一,至今它仍是世界上应用最广泛的解热、镇痛和抗炎药,也是作为比较和评价其他药物的标准制剂。乙酰水杨酸受热易分解,分解温度为128~135℃。某学习小组在实验室以水杨酸(邻羟基苯甲酸)与醋酸酐[(CH3CO)2O]为主要原料合成该物质,设计的合成路线为:
一、制备K
s*5u
二、提纯
方案1
方案2
主要试剂和产品的物理常数
名    称
相对分子质量
熔点或沸点(0C)



水杨酸
138
158(熔点)
微溶
易溶
易溶
醋酸酐
102
139.4(沸点)
反应
可溶
易溶
乙酰水杨酸
180
135(熔点)
微溶
可溶
微溶
请根据以上信息回答下列问题:                   
(1)①合成阿斯匹林时,还会生成一些副产品,其中有一种是高分子,为了分离此物质,方案1中加入A物质为      溶液。
②本方案抽滤后进行洗涤,其具体操作是       
(2)方案2为改进的提纯方法,称为重结晶提纯法。
①该方案中步骤1除了选用乙酸乙酯外,还可选择下列哪些
试剂      
A. 乙醇      B. 蒸馏水      C. 乙醚   
②步骤2回流的装置如图所示,写出仪器a的名称      ,使用温度计的目的是      ,冷凝水的流向为       

③方案2所得产品的有机杂质要比方案1少的原因是      
(3)该学习小组在实验中原料用量:2.0g水杨酸、5.0ml醋酸酐(ρ=1.08g·cm-3),
最终称量产品m="2.2g" ,则乙酰水杨酸的产率为       。

Your teenage years should be the most exciting and enjoyable years in your life. Here is some advice ??? ??? how you can get the most during the time.

Be Happy?

You are young and full of energy. (72) There are lots of things you don’t have to worry about. You don’t need to worry about where to get your meals, where to sleep at night, or how to make money. During the time without a lot of worries, you should try your best to be happy every day.

Be Healthy?

As a teenager, you will experience many changes in your body. So during the time you should learn to take care of yourself. Keep yourself clean and eat the right kinds of food. (73) What you are doing now will help you keep healthy in the future.

Be Wise?

Keep close contact (接触) with your parents and other older people. You may have ten thousand questions as you come into this new stage of life. This is the time when you actually need your parents’ guidance (指导) and support.?

Choose Your Friends?

The friends you make will have a great ??? ??? on your teenage life. Choosing the right friends will save you a lot of trouble and sadness in the future.

Think over the above advice and try to enjoy your teenage years. As these years pass, you can prepare yourself for a good future.

任务一:请根据短文内容,分别写出处所缺单词。(每空限填一词)

1. _____________???????????????? ______________

任务二:请把上文中画线的句子翻译成汉语。

2. ________________________________________________________________

3. ________________________________________________________________

任务三:请根据短文内容回答下列问题。

4.How many suggestions are given to teenagers in this passage?

?? ________________________________________________

5.Why should teenagers choose right friends according to the passage?

Because _________________________________________________________.

 

任务型阅读。阅读短文,根据其内容,完成下列任务。(10分)

Andy was still traveling in Spain when he realized he had to confirm(确认) his     home with the airline company. He was visiting Spain in order to improve his Spanish. When he was speaking to people face to face, he had no difficulty understanding what they said. However, when he was speaking on the phone, he still had a problem. Andy called the airline. And the clerk confirmed that his plane was leaving at nine o’clock three days from that day. She also told Andy to be at the airport a little earlier in order to check in his luggage and get a seat.

Since he was leaving in three days, Andy didn’t lose any time. He visited as many places as he could. He thought that it would probably be a while before he had enough money again. He wished he could come back and spend a year in Spain.

Too quickly, the final day arrived. Andy left early for the airport before take-off. He hated to rush. When he went to the clerk to show his ticket, the clerk looked at the ticket in surprise , “Why, sir, but your flight was at nine o’clock in the morning, and now it is eight in the evening.” “But I confirmed my flight,”insisted Andy.“Will I have to pay for another ticket?”

“No, Sir. However, the next flight out will be three days from now.”

Andy’s      of shock turned to smile as he realized that now he could go on with his vacation.

任务一:请根据短文内容,分别写出①、②处所缺单词。(每空限填一词)

1.①______________    ②______________

任务二:根据短文内容补全句子。(每空限填一词)

2.(A) He visited as many places as _____________.

(B)From the passage we know Andy could ____________ his holiday.

任务三:请把上文中画线的句子翻译成汉语。

3._________________________________________________________

任务四:请根据短文内容回答下列问题。

4.Why did the clerk tell Andy to be at the airport a little earlier?

________________________________________________________

5.How long was Andy late for the plane that day?

_________________________________________________________

 

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