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【简答题】
小刚同学在做“观察水的沸腾”的实验时，有下列温度计可供选择： A、体温计（35℃～42℃）； B、家用寒暑表（﹣30℃～60℃）； C、水银温度计（量程为﹣10℃～110℃）； D、酒精温度计（量程为﹣80℃～78℃）各一支． （1）根据这个实验的要求，用哪支温度计？答： _________ ． （2）如果小刚同学为了准确读出温度计的示数，将温度计从沸水中拿出来进行观察读数，则会导致测量值比真实值 _________ （填“偏大”或“偏小”），这是不允许的． （3）水沸腾的时候，是在液体 _________ 和 _________ 同时进行的剧烈的汽化现象．水沸腾前温度计的示数在不断 _________ ，水沸腾后继续加热，温度计的示数 _________ ．（填“升高”、“不变”、“降低”） （4）如下表该同学沸腾时测得的温度为 _________ ℃，表示当时大气压 _________ （填“低于”、“高于”、“等于”）1个标准大气压，请在图中描出水的温度随时间变化的曲线．
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举一反三
【单选题】In performing formal bows, three bows refer to the followings except ( ) .
A.
bow to the Heaven and Earth
B.
bow to the matchmaker
C.
bow to the parents
D.
bow to each other, husband and wife
【简答题】Hi, Nancy, How are you? I’m having some problems at the new school. I want to make new friends, but I don’t know how. You know, I’m a quiet and shy girl. It’s hard for me to say hello to strangers. Wh...
【单选题】一How long has Tom _______ Nancy? 一I don’t know. And I even didn’t know they ______ .
A.
married to:got married
B.
married；married to
C.
been married to;got married
D.
been married；got married
【简答题】D For millions of years, animals have communicated in countless ways — from giving off chemical signals, to performing complex dances. Humans, on the other hand, have the ability to communicate using ...
【简答题】Nancy: I don’t know. (3)________ have it
repaired.A. I need to B. I have to
【判断题】The first bow in the ritual of performing formal bows is to show thanks to the Heaven and Earth which provid es such happy life with the couple.
A.
正确
B.
错误
【简答题】开出现金支票63 560元发放上月工资。
【单选题】I don’t know Nancy ,but I __________the girl. [ ]
A.
heard
B.
know of C .learned from D. heard of
【单选题】–Nancy, how long does it take you to fly to Canada? –Sorry, I don’t know. But I can telephone my father to _____ it for me.
A.
do
B.
check
C.
catch
D.
find
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