每分放的影片长30米，第一部放映24分，第二部放映19分．第二部比第一部影片短多

Joe’s garden is _________.

A．interesting

B．interest

C．interestingly

D．interested

阅读理解。

     Grown-ups know that people and objects are solid. At the movies, we know that if we reach out to

touch Tom Cruise, all we will feel is air. But does a baby have this understanding?

     To see whether babies know objects are solid, T.Bower designed a method for projecting an optical

illusion (视觉影像) of a hanging ball. His plan was to first give babies a real ball, one they could reach

out and touch, and then to show them the illusion. If they knew that objects are solid, and they show

surprise in their faces and reach out for the illusion and found empty air, they could be expected

movements. All the 16-to 24-week-old babies tested were surprised when they reached for the illusion

and found that the ball was not there.

     Grown-ups also have a sense of object permanence. We know that if we put a box in a room and

lock the door, the box will still be there when we come back. But does a baby realize that a ball that rolls

under a chair does not disappear or go to never-never land?

     Experiments done by bower suggest that babies develop a sense of object permanence when they are

about 18 weeks old. In his experiments, Bower used a toy train that went behind a screen. When

16-week-old and 22-week-old babies watched the toy train disappear behind the left side of the screen,

they looked to the right, expecting it to reappear. If the experimenter took the train off the table and lifted

the screen, all the babies seemed surprised not to see the train. This seems to show that all the babies had a sense of object permanence. But the second part of the experiment showed that this was not really the

case. The researcher substituted (替换) a ball for the train when it went behind the screen.

The 22-week-old babies seemed surprised and looked back to the left side for the train. But

16-week-old babies did not seem to notice the switch (更换). Thus, the 16-week-old babies seemed to

have a sense of "something permanence," while the 22-week-old babies had a sense of object

permanence related to a particular object.

 1. The passage is mainly about ______.

A. babies' sense of sight    

B. effects of experiments on babies

C. babies' understanding of objects    

D. different tests on babies' feelings

2. In Paragraph 3, "object permanence" means that when out of sight, an object ______.

A. still exists  

B. keeps its shape  

C. still stays solid  

D. is beyond reach

3. What did Bower use in his experiment?

A. A chair    

B. A screen        

C. A film      

D. A box

4. Which of the following statements is true?

A. The babies didn't have a sense of direction.

B. The older babies preferred toy trains to balls

C. The younger babies liked looking for missing objects.

D. The babies couldn't tell a ball from its optical illusion.

指出汽包水位的三冲量。

签订有中间业务、电子银行业务等协议的存款账户销户前需撤销相关协议。

随着人们环保意识的增强，现在的春节，一些城市的烟花爆竹不像往年那么“热闹”了，烟花和爆竹声变得越来越稀疏了。而新年俗不断涌现：短信、微博、视频拜年；旅游健身、学习充电等正越越多地走进人们的春节长假……人们觉得，少放点烟花爆竹，年味儿也不会变淡！从文化生活角度看，鞭炮声音少了，年味儿却没减的原因是（）

①传统的“年”文化具有相对稳定性，不会因鞭炮声音少了年味儿变淡

②传统的“年”文化在传承中创新发展，出现了新的庆祝新年的方式

③传统的“年”文化远流长、博大精深，因此年味儿不会减少

④传统的“年”文化影响人们的交往行为和交往方式

A.①②

B.①④

C.②③

D.③④