《2026年一本英语阅读理解150篇八年级》

主题范畴:人与社会(科学与技术) 语篇类型:应用文 词数:191 难度:★★★☆☆ 建议用时:6分钟 参考答案:P218
全文翻译
An interesting experiment with oranges
Does an orange stay on the top of water or go down when placed in water? It seems like an easy question, but is it? Do this fun density(密度) science experiment for kids and answer the question while learning a special character of oranges.
How to do it:

Step 1: Fill the bowl with water.
Step 2: Put the orange in water and watch what happens.
Step 3: Peel the rind(果皮) from the orange.
Step 4: Put the peeled orange in water, and what happens this time?
What happens:
● The first time you put the orange in the bowl of water, it stays on the top of water.
● After you peel the rind and put the orange in water again, it goes down to the bottom.
Why:
The rind of an orange is full of small air pockets(气囊) which help give it a lower density than water, making it stay on the top of water. Peeling the rind with all the air pockets from the orange makes its density higher than that of water, making it go down.
① Which of the following is the best to put in “ ▲ ”?
A. What to prepare
B. Where to do it
C. When to do it
D. Why to do it
② How many steps are there in this experiment?
A. Two.
B. Three.
C. Four.
D. Five.
③ What happens after putting the orange without the rind in water?
A. The orange goes bad.
B. The orange becomes bigger.
C. The orange stays on the top of water.
D. The orange goes down to the bottom.
④ What makes the orange have a lower density than water?
A. The juice inside the orange.
B. The rind with small air pockets.
C. The shape of the orange.
D. The color of the orange rind.
⑤ Who might be most interested in reading this passage?
A. A physics lover.
B. A nature lover.
C. A space lover.
D. A history lover.

答案： ① A 句子还原题。根据How to do it部分中的内容可知,实验过程中用到了小标签中提到的橘子、碗和水。由此可知,此处指实验要用到的东西;再结合选项可知,A项"该做什么准备"符合语境。
② C 细节理解题。根据How to do it部分中的Step 1、Step 2、Step 3和Step 4可知,该实验分为四个步骤。
③ D 细节理解题。根据What happens部分中的"After you peel the rind and put the orange in water again, it goes down to the bottom."可知,剥了皮的橘子放入水中会沉入水底。
④ B 细节理解题。根据Why部分中的"The rind of an orange is full of small air pockets which help give it a lower density than water"可知,橘子皮中充满了小气囊,使其密度比水低。
⑤ A 推理判断题。通读全文可知,本文主要讲述了一个有趣的物理实验,故一位物理爱好者可能对本文最感兴趣。