问题 填空题

九月我校进行了安全教育演练,演示了灭火器的使用.灭火器放在烈日下温度会______(选填“升高”或“降低”),这是通过______的方法使其内能增加,具有一定的危险性,为了安全,灭火器应存放在阴凉干燥处.

答案

改变内能的两种方式:做功和热传递,物体吸收热量,内能增加,温度升高,物体放出热量,内能减少,温度降低.

灭火器放在烈日下温度会升高,这是通过热传递的方法使其内能增加,具有一定的危险性,为了安全,灭火器应存放在阴凉干燥处.

故答案为:升高;热传递.

单项选择题
完形填空
Having lived in the house for so long, we found our kitchen looked old. We decided it was time to   1   the kitchen, and my husband and I were discussing   2   colors. The children, sitting nearby, suddenly all spoke together: “Not the measuring stick.”
“No,” I   3   them. “Not the measuring stick..”
The measuring stick isn’t a (an)   4   stick but the kitchen side of the door between our kitchen and dining room. Along the edge we’ve   5    each child’s growth by making a mark showing his or her   6   on every birthday. Over the years so many colored pens, pencils and markers have been used, that now, this white door is somewhat like an abstract painting.
Names and dates show different    7  , and I can tell by the script(手迹) who measured whom. An eight-year-old measured her three-year-old sister, a grandchild measured her grandmother, my husband measured me. At the parties, when this door   8   back and forth frequently, friends stop to   9   the names and dates. When we ask if they would like to be always remembered, they usually smile   10   and go back right up into place,   11   to be measured.
Many of those listed on the door are still  12  ; some have stopped. Some remain with us only in   13 . When my mother came to see my eldest daughter graduate from university, we measured her too. It was her last visit to our home.
We haven’t  14   the new kitchen color plan yet, but one thing is certain: whatever color we choose, the back of the kitchen door will always remain   15  , with lots of names and dates in various colors.
小题1:
A.restore
B.rebuild
C.sell
D.repaint
小题2:
A.comfortable
B.possible
C.available
D.changeable
小题3:
A.promised
B.repeated
C.followed
D.responded
小题4:
A.false
B.wonderful
C.actual
D.obvious
小题5:
A.kept
B.witnessed
C.recorded
D.accompanied
小题6:
A.age
B.weight
C.name
D.height
小题7:
A.information
B.handwriting
C.style
D.characteristic
小题8:
A.adjusts
B.shuts
C.opens
D.swings
小题9:
A.copy
B.read
C.appreciate
D.remove
小题10:
A.proudly
B.automatically
C.shyly
D.calmly
小题11:
A.ready
B.voluntary
C.able
D.unwilling
小题12:
A.growing
B.contributing
C.studying
D.working
小题13:
A.sight
B.design
C.amazement
D.memory
小题14:
A.concerned about
B.approved of
C.decided on
D.relied on
小题15:
A.fresh
B.old
C.white
D.original