24.The Yellow River is the second ___________river in China .

　 A. longer　　 B. longest　　　 C. the most long　 D. more longer

23.The noise ___the sound of a plane ___ above me. A. looked like; flying B. was like; flying 　C. sounded like; flying　 D. B and C

22.Daniel asked ___, “What will I be in the future?” A. him 　　　　　　 　　　 B. her 　　　　　 　　　 C. himself 　　 D. herself

21.The bell rings, so we must ___ to school. A. in a hurry　 　　　 　　　 B. hurry　 　　 　　　 C. in hurry　 　　　 D. be in hurry

(A)每小题你将听到一个对话，从A、B、C三幅图中找出与你所听内容相符合的选项，每段对话读一遍。

1. 　A.　　　　　　　　　　 B.　　　　　　　　　　　 C.　

2.　 A.　　　　　　　　　　 B.　　　　　　　　　　　 C.　

3. 　A.　　　　　　　　　　 B.　　　　　　　　　　　 C.

4.　 A.　　　　　　　　　　 B.　　　　　　　　　　　 C.

5.　 A.　　　　　　　　　　　 B.　　　　　　　　　　 C.　

(B)听下面的对话独白，每段对话或独白后有几小题，请根据你所听到的内容，从所给的A、B、C三个选项中选出一个适当的答语。每段对话或独白读两遍。

听第6段材料，回答6-7题：

6. Why does Sandy say Amy is her best friend?

　 A. Because Amy is pretty and busy.

　 B. Because Amy is kind and likes helping people.

　 C. Because Amy is in the same class with Sandy.

7. Who is the oldest?

　 A. Amy.

　 B. Sandy.

　 C. Nick.

听第7段材料，回答8-10小题。

8. What does the woman think of the rainy days?

　 A. She thinks it very boring.

　 B. She thinks it helpful for the plants.

　 C. She thinks it good for playing outside.

9. What will the weather be like the next day?

　 A. It will rain heavily and cause a flood.

　 B. It will be better, but still rain.

　 C. It will be a sunny day.

10. Where did the man get the weather forecast?

　 A. From the radio.

　 B. From the TV.

　 C. From the woman.

听第8段材料，回答第11-15小题。

11. When is the trip going to start?

　 A. At 8:10.

　 B. At 7:50.

　 C. At 8:30.

12. Why do the students go to the zoo?

　 A. Because they like playing games in the zoo.

　 B. Because they want to study and help the animals.

　 C. Because there aren’t any rare animals in the museum.

13. What can they do to help the animals?

　 A. They can do a bird count.

　 B. They can feed the animals.

　 C. they can donate some money.

14. Does Daniel like to study in the zoo?

　 A. Yes, he thinks he can learn a lot.

　 B. No, he likes playing games better.

　 C. No, but he doesn’t like the park either.

15. What does Millie think of studying animals?

　A. She thinks it helpful if she studies animals in the zoo.

　B. She thinks playing games in the park is better than studying animals.

　C. She thinks it boring to study animals.

听第9段材料，回答第16-20题

16. How long has the writer lived in the countryside?

　 A. For more than 20 years.

　 B. For about 10 years.

　 C. For less than 20 years.

17. Where were the sparrows singing?

　 A. They were in the bedroom.

　 B. They were near the window.

　 C. They were in their home.

18. What were the swallows busy doing in the morning?

　 A. They were busy looking for food.

　 B. They were busy jumping and flying.

　 C. They were busy singing.

19. Can the writer see the sparrows now?

　 A. Yes, he can see them as usual.

　 B. Yes, and there are more than before.

　 C. No, he can’t.

20. Why do the birds leave this place?

　 A. Because the countryside is becoming better.

　 B. Because they can’t find food easily and people often kill them.

　 C. Because they can’t give people more food.

34．电影《泰坦尼克号》描述的是1912年一艘名叫“泰坦尼克号”的大游轮，因为跟冰山相撞而沉没的悲剧，为了避免悲剧的重演，科学家发明了一种利用声音传播规律制成的探测装置，把这种探测装置安装在船上，利用它能较早地发现冰山或暗礁的存在。

(1)你能说出这种装置的名称吗？它发出的声音为了有更好的回收效

果，最好用什么声波？为什么？(3分)

(2)如图，如果这种装置发出信号遇到暗礁5S后接收到返回的波，则暗礁到船的距是

多少？(设这种波在海水中的传播速度为1500m／s)(2分)

(3)若探测船在海上航行时，轮船上的一位气象学家将一只氢气球凑近耳朵听了听，马上向大家发出紧急报告：“海上风暴即将来临”。就在当天夜里，海上发生了强烈的风暴，一只氢气球怎么能预报海上的风暴呢？试分析气象学家判断风暴的物理学依据是什么？(2分)

33.在利用光具座进行凸透镜成像的实验探究中：

(1)如图甲所示，一束平行于凸透镜主光轴的光线经过凸透镜后，在光屏上形成了一个最小、最亮的光斑。由图可知，凸透镜对光线具有　　　 作用，该凸透镜的焦距是　　　　 cm。

(2)将蜡烛、凸透镜、光屏依次放在光具座上，点燃蜡烛后，无论怎样移动光屏都不能在光屏上得到像，请你指出其中一条可能的原因：　　　　　　 　　　　　　　　　　　　　。

(3)调整后，把烛焰放在距凸透镜16cm处时(如图乙)，在凸透镜另一侧前后移动光屏，会在光屏上得到一个倒立、　　　　 的实像(填写像的性质)；　　　　 (填光学仪器)就是利用这一成像规律工作的。如果将蜡烛在乙图的基础上远离透镜，仍要在光屏上得到清晰的像，光屏应向　　　　 (选填“靠近”或“远离”)透镜的方向移动。

32．小明利用平板玻璃、两段完全相同的蜡烛等器材探究平面镜成像的特点．

(1)选用玻璃板的目的是_________________________。

(2)选取两段完全相同的蜡烛的目的是______________________________________。

31．某同学不小心掉了半块饼干在地上，5min后发现饼干上聚集了许多蚂蚁。那么5min前这些蚂蚁离饼干的最远距离为多少呢？确定这个最远距离的关键是测出蚂蚁的爬行速度。某班同学以小组为单位进行科学探究活动：估测蚂蚁的爬行速度，下表是各小组的实验探究方案和记录数据：

　(1)在表中各小组最后测得的蚂蚁爬行速度各不相同，产生此现象的可能原因是什么？

(2)5min前蚂蚁离开饼干的最远距离是多少？计算说明

30.如图所示,在两块相同的玻璃板上,分别滴一滴质量相等的酒精,通过观察图中情景可知,

他探究的是酒精蒸发快慢与　　　　　　　 是否有关.此实验过程中需控制酒精的　　 　　和其表面上方空气流动快慢相同.　　

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