5. The result of the experiment was very good, ____ we hadn't expected. (2000 北京春招)

A. when　　 B. that　　 C. which　　 D. what

DBDDC

☆交际速成☆

[考点1]Talking about intentions and plans. 谈论意愿和打算 (2004江苏)

　 -- How long are you staying?　 -- I don't know. ____.

　　 A. That's OK　　 B. Never mind

　　 C. It depends　　 D. It doesn't matter

[答案与解析]C　 本题考查具体语境下被询问打算时的应答。A项用于回答感谢和道歉，B、D两项用于回答道歉，C 项表示“看情况而定”。

[归纳]英语中常见表达意愿和打算的用语有：

① I'll go with you.

② I'm going to see my head teacher this afternoon.

③ I'd like to make a phone call to her after class.

④ I want / hope to find an English pen friend.

⑤ I plan to go to Hangzhou this summer.

⑥ We are ready to move to a new house.

⑦ Bill intends to spend his vocation in California.

⑧ I'm thinking of driving to Beijing.

⑨ Where would you prefer going...?

⑩ How would you like to go to...?

⑪ When are you going off to...?

⑫ How are you going to...?

[考点2]Expressing good wishes祝愿

(2005广东)

Tom: Mike, our team will play against the Rockets this weekend. I'm sure we will win.　　

Mike: ____!

A. Congratulations　　 　B. Cheers

　 C. Best wishes　　 　　　D. Good luck

[答案与解析]D　 考查祝愿用语。在比赛前表示祝愿的话用Good luck。Congratulations用于成功之后的祝贺。Cheers意为“干杯”。Best wishes多用于书面语，表示“万事如意”的意思。

[归纳]英语中常见表达祝愿的用语有：

① Have a good day / time!

② Have a good journey / trip!

③ Good luck!

④ Enjoy yourself!

⑤ Best wishes to you!

⑥ Happy New Year!

⑦ Happy birthday!

⑧ Merry Christmas!

应答语有：

① Thank you.

② You, too.

③ The same to you.

[考点3]Describing emotions 描述人物的情感

(2001上海春招)

-- I'm afraid I can't finish the book within this week.

-- ____.

　　 A. Please go ahead　　 B. That's all right

　　 C. Not at all　　 D. Take your time

[答案与解析]D　 本题考查时表示遗憾情感的应答。A项表示“请吧，说吧”，用于回答许可或让对方先行。B、C两项是感谢或道歉的答语，D项表示“别着急，慢慢来”，符合语境。

[归纳]中学英语中描述人物情感的用语有：

① (恐惧) Help! / How terrible! / I'm afraid of... / I'm afraid to... / You scared me! / It scares me!

② (高兴) (It's) well done! / How wonderful! / That's great! / I'm pleased to...

③ (惊奇) Really! / Oh dear! / Is that so? / What a surprise! / How surprising!

④ (忧虑) What's wrong? / what's the matter? / Anything wrong? / What should we do?

⑤ (安慰)There, there. / Don't be afraid. ／Don't worry. / It's (quite) all right. / It'll be OK / all right.

⑥ (满意) Good! / Well done! ／ Perfect! / That's fine. / That's better.

⑦ (遗憾) I'm so sorry! / It's a great pity! / What a shame! / That's too bad!

⑧ (同情) I'm so sorry! / I'm so sorry (about your illness). / I'm sorry to hear that.

⑨ (愤怒) Damn! / How annoying!

⑩ (鼓励) Well done! / Come on! / Keep trying. / You can do it!

[牛刀小试4]

4. There is no light in the dormitory. They must have gone to the lecture, ____? (2004　 上海春招)

A. didn't they　　　　　 B. don't they

C. mustn't they　　　　　 D. haven't they

3. It was evening ____ we reached the little town of Winchester. (2004 天津)

A. that　　 B. until　 C. since　　 D. before

2. Now that you've got a chance, you ____ make full use of it. (NMET 1999)

A. had better to　　　　 B. might as well

C. might as well as　　　 D. would rather

② 表有科学根据的预测。The weather report says it will rain tomorrow.

③ 表客观必然。Man will make mistakes.

(3) be going to

① 表现在打算在近期或将来要做某事。I'm going to finish my homework tonight.

② 表根据已有迹象的预测。It's so dark outside, I think it's going to rain.

③ be going to不与come, go连用，而用be coming, be going 形式。Mary is coming here this evening.

[注意]

表计划、安排、规定要做的事，用“be + to do”。此外，表示按时刻表运行的动作常用一般现在时表将来。The meeting is to be held at 9:00 a. m. / Our plane leaves at 6:00 a. m. .

[牛刀小试3]

1. ____ you call me to say you're not coming, I'll see you at the theatre. (2004 吉林)

A. Though　　 B. Whether　 C. Until　 D. Unless

17．(10分) 一定质量的理想气体由状态经状态变为状态，其中过程为等压变化，过程为等容变化。已知，，。

(1) 求气体在状态时的体积。

(2) 说明过程压强变化的微观原因。

(3) 设过程气体吸收热量为，过程气体放出热量为，比较、的大小说明原因。

(3)大于：因为，故增加的内能与减小的内能相同，而气体对外做正功，气体不做功，由热力学第一定律可知大于(4分)

16．(10分) A和B是一列简谐横波在传播方向上的两质点，图中甲和己分别为其振动图像，

其平衡位置的坐标分是和，如果波长大于3m但小于9m，波沿轴正方向传播，求波的传播速度大小并画出时刻两质点间的波形图。

15．(10分) 如图，一根粗细均匀、内壁光滑、竖直放置的玻璃管下端密封，上端封闭但留有一抽气孔。管内下部被活塞封住一定量的气体 (可视为理想

气体)，气体温度为。开始时，将活塞上方的气体缓慢抽出，当活塞上方的压强达到时，活塞下方气体的体积为，活塞上方玻璃管的容积为。活塞因重力而产生的压强为。继续将活塞上方抽成真空并密封。整个抽气过程中管内气体温度始终保持不变，然后将密封的气体缓慢加热，求：

(1) 活塞刚碰到玻璃管顶部时气体的温度；

(2) 当气体温度达到时气体的压强。

14．(10分) 一半径为R的球体放置在水平面上，球体由折射率为的透明材料制成。现有一束位于过球心O的竖直平面内的光线，平行于桌面射到球体表面上，折射入球体后再从竖直表面射出，如图所示，已知入射光线与桌面的距离为，求出射角。

13．(1) 用油膜法估测油酸分子的大小，实验器材有：浓度为0.05% (体积分数) 的油酸酒

精溶液、最小刻度为0.1mL的量筒、盛有适量清水的浅盘、痱子粉、橡皮头滴管、玻璃板、彩笔、坐标纸。下面是实验步骤，请填写所缺的步骤C

A．用滴管将浓度为0.05%油酸酒精溶液一滴一滴地滴入量筒中，记下滴入l mL油酸

酒精溶液时的滴数N

　 　　 B．将痱子粉均匀地撒在浅盘内水面上，用滴管吸取浓度为0.05%的油酸酒精溶液，从

低处向水面中央一滴一滴地滴入，直到油酸薄膜有足够大的面积又不与器壁接触为

止，记下滴入的滴数n。

　 　　 C．　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 。

　 　　 D．将画有油酸薄膜轮廓的玻璃板放在坐标纸上，以坐标纸上边长为1cm的正方形为单

位，计算轮廓内正方形的个数，算出油酸薄膜的面积S

　 　　 用已给的和测得的物理量表示单个油酸分子的直径大小　　　　　 cm。

(2) 空气压缩机在一次压缩过程中，活塞对气缸中的气体做功为，同时气体的内

能增加了。试问：此压缩过程中，气体　　　 (填“吸收”或“放出”的热量等于　　　　 J。

(3) 如图为双缝干涉的实验示意图，若要使干涉条纹的间距变大可改用波长更　　　　 　(填、“长”或”短”) 的单色光，或是使双缝与光屏间的距离　　　　 　(填”增大”、减小”)。