问题 实验题

如图(a)所示的仪器A叫做 (1) ,实验时可以通过观察两管中液面的 (2) 来判断压强的大小。若实验中只提供了如图所示的材料和器材,那么,该实验装置可以探究 水内部压强与 (3)  的关系。如图(b)所示的实验仪器叫做 (4) ,所测量的物体A的体积是 (5) 厘米3

答案

(1)U形管压强计;(2)高度差;(3)深度(或方向);(4)量筒;(5)30。

观察图象可知该仪器的名称为:U形管压强计;

当有压力作用在U形管压强计的橡皮膜上时,两管中液面将不在同一水平线上并会出现一个高度差,而且橡皮膜所受的压强越大,压强计中液面的高度差就越大,因此它可以通过两管中液面的高度差来表示橡皮膜所受的压强大小;

观察实验中提供的材料和器材,发现在该器材中可以改变橡皮膜所处的深度,也可以改变橡皮膜的方向,因此该实验装置可以探究;(同一)液体内部压强大小与液体深度或(同一)液体内部某一处受到液体向各个方向压强的大小;如图(b)所示的实验仪器叫做量筒,所测量的物体A的体积是30厘米3

阅读理解

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项.选项中有两项为多余选项.

     Taking good notes is a time-saving skill that will help you to become a better student in

several ways. ___1__Second, your notes are excellent materials to refer to when you are

studying for a test. Third, note-taking offers variety to your study time and helps you to hold

your interest.

     You will want to take notes during classroom discussions and while reading a textbook

or doing research for a report.___2___ Whenever or however you take notes, keep in mind

that note-taking is a selective process. __3__

     The following methods may work best for you.

     ·Read the text quickly to find the main facts and ideas in it.

     ·Carefully read the text and watch for words that can show main points and supporting facts.

     ·Write your notes in your own words.

     ·__4__

     ·Note any questions or ideas you may have about what was said or written.

     As you take notes, you may want to use your own shorthand(速记). When you do, be sure

that you understand your symbols and that you use them all the time. __5_

A. Use words, not complete sentences.

B. There are three practical note-taking methods.

C. You must write your notes on separate paper.

D. Otherwise, you may not be able to read your notes later.

E. You will also want to develop your own method for taking notes.

F. That means you must first decide what is important enough to include in your notes.

G. First, the simple act of writing something down makes it easier for you to understand and remember it.

多项选择题