问题 填空题

用两个相同的“热得快”,分別给质量、初温都相同的甲、乙两种液体同时加热,两液体的温度随时间变化的图象如图所示.根据图象可知,甲液体的比热容___________(选填“大于”、“等于”或“小于”)乙液体的比热容.质量为500克、初温为20℃的甲液体温度升高到90℃,吸收的热量为___________焦.[甲液体的比热容为1.8×103焦/(千克·℃)].

答案

小于;6.3×104

选择题
阅读理解

阅读理解。

     Reading to dogs is an unusual way to help children improve their literacy skills.  With their shining

brown eyes, wagging tails, and unconditional love, dogs can provide the nonjudgmental listeners needed

for a beginning reader to gain confidence, according to Intermountain Therapy Animals (ITA) in Salt

Lake City.  The group says it is the first program in the country to use dogs to help develop literacy in

children, with the introduction of Reading Edueation Assistance Dogs(READ).  

    The Salt Lake City Public Library is sold on the idea.  "Literacy specialists admit that children who

read below the level of their fellow pupils are often afraid of reading aloud in a group, often have lower

self-respect, and regard reading as a headache," said Lisa Myron, manager of the children's department.  

    Last November, the two groups started "Dog Day Afternoon" in the children's department of the main

library.  About 25 children attended each of the four Saturday-afternoon classes, reading for half an

hour.  Those who attended three of the four classes received a "pawgraphed" book at the last class.  

    The program was so successful that the library plans to repeat it in April, according to Dana

Thumpowsky, public relations manager.  

1.  What is mainly discussed in the text?   

A.  Children's reading difficulties.    

B.  Advantages of raising dogs.  

C.  Service in public library.        

D.  A special reading program.  

2.  Specialists use dogs to listen to children reading because they think _________.   

A.  dogs are young children's best friends

B.  children can play with dogs while reading

C.  dogs can provide encouragement for shy children

D.  children and dogs understand each other

3.  By saying "The Salt Lake City Public Library is sold on the idea", the writer means the

     library ________.   

A.  uses dogs to attract children    

B.  accepts the idea put forward by ITA

C.  has opened a children's department    

D.  has decided to train some dogs

4.  A "pawgraphed" book is most probably_________.  

A.  a book used in Saturday classes  

B.  a book written by the children

C.  a prize for the children        

D.  a gift from parents