问题 阅读理解

阅读理解。

Trip 1  One Week in the Mountain.s

     Bring your strong shoes and warm clothes for this walk in a beautiful area of the Green

Mountains. You may go hiking or have a try of rock climbing. This is also a protection area for

wild animals. You can find many kinds of animals living in this area.

     Time: May 8-May 14        Tel: 64639818

     Adult (成年人): $ 110.00 Child: $ 55.00

Trip 2  Three Days irt the Country

     There are many beautiful gardens. Take your camera and enjoy the wonderful sight in Hunter Valley.It

is a good place for fishing and horse riding. You can also find different kinds

of flowers here. This is also a great walk for bird-lovers.

     Time: May 20-May 22       Tel: 63986432

    Adult: $ 50.00          Child: $ 25.00

Trip 3  FlashlighL Adventure

      Put on your warm clothes, bring a flashlight(手电筒) , and come for a night walking along the Dungog Valley. It is a trip full of adventures. A guide will lead the tour. Many of the

plants you will see on this trip can only be seen at night.

     Time: May 16-May 18       Tel: 63875629

     Adult:  $ 30.00               Not for children

Trip 4   Five Days by Sea

       Wear your sun hat and enjoy wonderful sunshine all the'time from moming to evening. Our

hotelis next to the sea. We have our own boats too. You can swim in the sea or in the swimming pool.

Every day our boat will take you to different places for swimming.

     Time: May 23-May 27       Tel: 67538293

     Adult: $ 80.00           Child: $ 40.00

1. What number may you call if you and your friends want to enjoy the sunshine at theseaside ? .

A. 67538293.

B. 63986432.

C. 64639818.

D. 63875629.

2. Sam wants to stay in Hunter Valley with his wife, his five-year-old daughter and his seven-year-old son. How much will it cost?

A. $25.

B. $50.

C. $100.

D. $150.

3. David loves sports. He will take his holiday from May 7 to May 15. What activity will he probably take part in?

A. Hiking in the mountains.

B. Fishing in the country.

C.Watching plants at night.

D. Swimming in the sea.

4. Lucy is a college student. She is quite interested in science. She wants to know something about the life of plants at night. Which trip will she choose?

A. Trip 1.

B. Trip 2.

C. Trip 3.

D. Trip 4.

5. Which of the Following is NOT mentioned according to the four advertisements?

答案

1-5 ADACC

填空题

(14分)

I.我国即将建成自己的载人空间站。载人航天器的生态系统中,不仅要求分离去除CO2,还要求提供充足的O2

⑴某种电化学装置可实现如下转化:2CO2=2CO+O2,CO可用作燃料。已知该反应的某极反应为:4OH--4e-=O2↑+2H2O,则另一极反应为:           

⑵有人提出,可以设计某温度下的反应:2CO=2C+O2(△H>O、△S<O)来消除CO的污染。请你判断该温度下上述反应是否能发生并说明理由是                

Ⅱ.大气固氮属于自然固氮,合成氨是目前人工固氮的主要方法。科学家一直致力“人工固氮”新方法的研究。

⑴有关大气固氮(以N2+O  2NO为例)、人工固氮(以N2+3H2 2NH3为例)反应的平衡常数的值如下表。

反应N2+02 2NO        N2+3H22NH3
温度/℃ 272000100400
K 3.84×10-31 0.13.4×1092.0x104
下列说法正确的是           。(填字母)

a.大气固氮与人工固氮都是放热反应

b.人类模拟大气固氮无现实意义

c.寻找在常温下合成氨的高效催化剂是目前人工固氮的新方向

d.在常温下,人工固氮非常容易进行

⑵已知:N2(g)+3H2(g)  2NH3(g)    =-92.4kJ·mol-1

2H2(g)+02(g)="2H20(1)        " ="-571.6" kJ·mol-1

据报道,在常温、常压、光照、催化剂的条件下,N2可以与水反应,则反应 N2(g)+3H20(1)=2NH3(g)+3/2O2(g)的=          KJ·mol-1

⑶某研究小组在673 K、30 MPa下,在体积为的密闭容器中进行反应:N2(g)+3H2(g) 2NH3(g),其(H2)和(NH3)随时间变化的关系如图所示。

①下列叙述正确的是           。(填字母)

A.点a的正反应速率比点b的大

B.点c处反应达到化学平衡状态

C.若t3时由673 K升至773 K,则(H2)将增大

②从开始到平衡时反应的平均速率(以H2的浓度变化表示)(H2)=              

③若开始时(N2)=(H2),则反应的平衡常数=            (用代数式表示)。

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