在探究水沸腾时具有什么特征的实验中,从水温接近90℃时开始计时,每隔1min记录

题型:问答题

问题:

在探究水沸腾时具有什么特征的实验中,从水温接近90℃时开始计时,每隔1min记录一次温度,其数据如下表所示.

加热时间/min0123456789
温度/℃85878992949697989898
(1)由表中的实验数据可知:水的沸点为______℃,当水的温度达到沸点后,继续给水加热,水的温度______.(选填“升高”、“不变”或“降低”)

(2)实验中,观察到水沸腾前和沸腾中,水中气泡在上升过程中气泡大小变化的情况不同,则图中______图是水沸腾前气泡上升的情况示意图.(选填“甲”或“乙”)

考点:沸腾及沸腾的特点
题型:问答题

阅读下面短文,并按照题目要求用英语回答问题。

[1] Perhaps you are an average student with average intelligence. However, you can receive better grades if you want. Yes, even students with average intelligence can be top students without additional work. Here’s how:

[2] Plan your time carefully. Make a list of your weekly tasks. Then make a schedule of your time. Be sure to set aside enough time to complete your normal reading and work assignments. Of course, studying shouldn’t occupy all of the free time on the schedule.

[3] Make good use of your time in class. Listening to what the teacher says in class means less work later. Take notes to help you remember what the teacher says.

[4] Skim before you read. Look over a passage quickly before you begin to read it more carefully. As you preview the material, you get some idea of the content and how it is organized. Later when you begin to read you will recognize less important material and you may skip some of these portions. Skimming helps double your reading speed and improve your comprehension as well.

[5] Review regularly. Go over your notes as soon as you can after class. Review important points mentioned in class as well as points you remain confused. If you know what the teacher will discuss the next day, skim and read that material, too. If you review your notes and textbook regularly, the material will become more meaningful and you will remember it longer. Regular review leads to improved performance on tests.

[6] Develop a good attitude towards tests. The purpose of a test is to show what you have learned about a subject. The world won’t end if you don’t pass a test, so don’t worry excessively about a single test.

[7] There are other techniques that might help you with your studying. Improving your studying habits will improve your grades.

小题1:What’s the main idea of the passage? (no more than 8 words)

__________________________________________________________________________

小题2:What should you do if you fail a test? (no more than 4 words)

__________________________________________________________________________

小题3:According to the passage, how can an average student improve his/her grades? (no more than 6 words)

__________________________________________________________________________

小题4:What does the word “it” (line 5, paragraph 5) probably refer to? (no more than 3 words)

__________________________________________________________________________

小题5:Among these suggestions, which one do you think is useful to your studies? Why? ( no more than 25 words )

____________________________________________________________________________

题型:问答题

默写常见的名句名篇(6分)

1.补写出下列名句名篇中的空缺部分。

小题1:故不积跬步,                                  。(荀子《劝学》)

小题2:                            ,依依墟里烟。(陶渊明《归园田居》)

小题3:                            ,百年多病独登台。(杜甫《登高》)

小题4:辘辘远听,                            。(杜牧《阿房宫赋》)

小题5:居庙堂之高则忧其民,                                           。(范仲淹《岳阳楼记》)

小题6:纵一苇之所如,                                          。(苏轼《赤壁赋》)

题型:问答题

在一个数据库中,模式与内模式的映像个数是

A.1个

B.与用户个数相同

C.由设置的系统参数决定

D.任意多个

题型:问答题

下列各组汉乐府诗中全部采用了杂言体的是()。

A.《枯鱼过河泣》、《战城南》

B.《东门行》、《上邪》

C.《陌上桑》、《饮马长城窟行》

D.《孔雀东南飞》、《孤儿行》

题型:问答题

“表/查询”选项卡包括表设计、查询设计和______三个设置区。

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