（10分）植物具有向重力生长的特性，下列是研究根向重力生长机理的两个实验。
实验一：将空白琼脂和含EDTA的琼脂做成帽状，分别套在甲、乙两组玉米胚根的根冠外（示意图如下）。提示：EDTA的作用是去除与其临接部位的 Ca²⁺。

将胚根水平放置培养一定时间后，观察到甲组胚根向重力（下）生长，乙组胚根水平生长。根据上述实验结果，得出实验结论：                               。
　　实验二：水平放置的胚根弯曲向下生长，与根冠近地侧的Ca²⁺浓度明显高于远地侧有关。研究表明，根总是朝着Ca ²⁺浓度高的方向弯曲生长。为验证这一结论，有人设计了下列实验方案。请根据提供的实验材料和用具，写出第二步及以后的实验步骤和实验结果，并回答问题。
（1）实验材料和用具：胚根等长的萌发玉米种子，空白琼脂帽，含EDTA的琼脂帽，上面部分含Ca²⁺的琼脂帽（水平方向），培养皿等。
（2）实验步骤：
　　第一步：取若干个培养皿，在每个培养皿中放置适量的萌发玉米种子，按实验一中乙组的方法处理胚根一定时间后，移去根冠外的琼脂帽。然后将培养皿平均分成两组，编号为 A组、B 组。 
　　第二步：                                                            。
　　第三步：                                                            。
（3）实验结果：                                                         。
（4）科学家进一步证实，根冠中生长素的分布受Ca²⁺浓度影响，当胚根水平放置时，重力诱导Ca²⁺向根冠下侧移动，导致近地侧的生长素浓度比远地侧高。请分析胚根的生长素分布与向重力生长的关系：                                  。

与你的同桌讨论一下，将下列对话补全，然后仿照下列句子，相互问答。

　　(1)－Do you like dessert?

　　－Yes, ________.

　　(2)－Do you like carrots?

　　－No, ________.

　　(3)－Do the boys like tomatoes?

　　－Yes, ________.

　　(4)－Does your brother like French fries?

　　－No, ________.

　　(5)－Does Uncle Li like salad?

　　－Yes, ________.

　　(6)－________ they ________ hamburgers?

　　－Yes, they do.

　　(7)－________ he ________ bananas?

　　－No, he doesn't.

　　(8)－________ she ________ noodles?

　　－Yes, she likes them a lot.

从（Ⅱ）栏中找出与（Ⅰ）各栏各句相适应的答话

　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　 　　

Ⅰ		Ⅱ
1．Nice to meet you．	[    ]	A．It's P．
2．This is Ling Feng．	[    ]	B．Yes, I am．
3．Are you Wei Hua?	[    ]	C．How do you do?
4．How do you do?	[    ]	D．Goodbye．
5．What's this?	[    ]	E．Nice to meet you．
6．Good morning, class!	[    ]	F．This is Jim Green．
7．Hello, Han Meimei!	[    ]	G．Good morning, teacher．
8．Goodbye．	[    ]	H．Hello, Kate．

Ⅰ．听对话，选择与对话内容相符的图片．

1．________　　2．________　　3．________　　4．________

Ⅱ．听短文，判断正误．

5．Our school team beat Greenport team 3-2.

(　　)

6．The football match was held on the playground of Greenport School.

(　　)

7．Greenport School beat us 3-1 last month.

(　　)

8．In the first half of the game, Greenport School team was leading by two goals.

(　　)

9．Ben, the captain of Greenport School team, slipped and injured his right leg.

(　　)

10．Our school team became hopeful after Greenport made some careless mistakes.

(　　)

11．Lu Lilu shot a ball into the net and finally brought the score to three goals to two.

(　　)

12．Our school team played very well and this is the third game it has won.

(　　)

Ⅲ．请听John与Lu Lilu的聊天．先将听到的信息填入表格，再选择正确的答案．

13．John likes ________ best, but ________ is Lu Lilu's favorite season.

[　　]

A．spring, spring

B．autumn, spring

C．spring, autumn

14．It is often ________ in summer in London.

[　　]

A．rainy　　B．windy　　C．cold

15．In the dialogue it is ________ now in Beijing.

[　　]

A．summer　　B．winter　　C．autumn

16．This spring Lu Lilu went to plant trees with ________.

[　　]

A．his classmates　　B．his parents　　C．John

17．John is going to ________ next weekend.

[　　]

A．water the trees

B．plant trees

C．see Lu Lilu

Ⅳ．听对话，选择正确的答案．

18．The man want to travel in ________.

[　　]

A．Hong Kong　　B．England　　C．America

19．The girl ________ if the dollar is used there.

[　　]

A．doesn't know　　B．is not sure　　C．is sure

20．The man doesn't ask the question about ________ there.

[　　]

A．the currency　　B．the language　　C．the weather

21．The man thought he was speaking to ________.

[　　]

A．a travel agent　　B．a nurse　　C．a doctor

22．From the dialogue we know that the girl knows ________ about the place the man will visit.

[　　]

A．a lot　　B．everything　　C．little

I have always heard that walking under a ladder brings bad luck, but I’ve never thought so. I have walked under ladders many times, but I have never met anything bad before. It’s the dame with black cats. People say if a black cat crosses before you, it means bad luck. I have never thought that until this afternoon. But ever since I heard my student Sam’s story, I’ve begun thinking about whether it was true.

This afternoon, Sam was walking down the street thinking about something, so he wasn’t paying attention to where he was going. He walked right under a ladder standing against a building. A black cat ran out of a door just at that moment, and Sam fell over it, his head hit the ladder. A man washing the window was at the top of that ladder and the dirty water went down through the air. Poor Sam! He got wet all over.

阅读短文,判断正(T)误(F)

1. At first, the writer believed that walking under a ladder would bring bad luck.　　  

2. A black cat crossing will bring you good luck when you are walking.　　　　　　 

3. This afternoon, the writer’s son Sam was walking down the street thinking about  

  something.

4. When Sam was walking under a ladder, a black cat ran out of a door.　　　　  

5. There was a man washing the window near the door.　　　　　　　　　　   

6. Sam had bad luck that afternoon.　　　　　　　　　　　　    　　　　　　

从B栏中选出与A栏相对应的答语,使句意完整,符合文章内容

A栏

7. Though I have always heard that walking under a ladder brings bad luck.　　  

8. I began thinking about whether “A black cat crossing brings bad luck” was true.

9. Sam wasn’t paying attention to where he was going.　　 　　　　　　　　   

10. When he saw the black cat.　　　　　　　　　　　　　　　　　　　　   

B栏

A. It was so late that he fell over it.

B. Because he was walking down the street thinking about something.

C. After I heard my student Sam’s story.

D. I’ve never thought so.