资料简介
Unit 5 Look into Science
Lesson 26
Ⅰ. 根据汉语提示写出下列单词或短语
1. 浅的 adj. _______
2. hold 为动词, 意为“_____”, 其名词为“______”, 意为
“支托物; 持有者”。
3. light 为名词, 意为“光, 光线”; 还可作动词, 意为“___
___”, “lighter”为名词, 意为“ ______________”。
shallow
holder
点
燃 打火机; 点火器
支撑
4. match作动词, 意为“__________”; 作名词, 意为“火
柴”, 是_________, 还可意为“比赛, 对手”。
5. examine 作 _____, 意为“检查”, 其名词形式为
“___________”, 意为“考试, 检查”。
相称; 相配
可数名词
动词
examination
Ⅱ. 根据汉语提示完成下列句子
1. 倒半碟水。
Fill the dish ____ ___ with water.
2. 小心地把广口瓶放在蜡烛上方直到广口瓶的顶部倒
置在盘子上。
Carefully ___ the jar ____ the candle _____ the top of
the jar ____ on the dish.
half
put over until
rests
full
3. 当蜡烛停止燃烧的时候, 它已经用光了空气中所有的
氧气。
______ the candle _____ _______, it ___ ____ ___ all
the oxygen in the air.
4. 水会上升多少呢?
_____ ___ does the water rise?
When stops burning has used up
How far
5. 因为大约五分之一的空气是由氧气组成, 所以水上升
并且充满广口瓶的大约五分之一。
_______ about ____ ____ of the air is made up of
oxygen, the water ____ and ____ about one fifth of the
jar.
Because one fifth
rises fills
Ⅲ. Read the text and answer the questions
1. How long should you make the candle burn before
you put the jar over it?
___________________. Two or three minutes
2. Why does the water rise and fill about one fifth of
the jar?
_________________________________________
_______
Because about one fifth of the air is made up of
oxygen.
要点1 use up 用光, 用完
Step 1难点·探
(1)use up是什么结构的短语?
(2)常见的与up相关的短语有哪些?
Step 2语境·悟
* When the candle stops burning, it has used up all the
oxygen in the air. 当蜡烛停止燃烧时, 它已经用完了空
气中所有的氧气。(P68)
*Leave me some water to wash. Don’t use it up.
给我留点水来洗。 别用光了。
Step 3知识·得 use up的用法
use up意为“用完; 用光”, 是“动词 + 副词”短
语。名词作宾语时, 名词可放在副词前, 也可放在副词
后; 代词作宾语时, 代词则必须放在副词前。该短语相
当于run out of. . . , 可用于被动语态。
【拓展延伸】 与up有关的短语
Step 4考点·练
( )①(2018·河池中考)The boy ran out of his
money to buy the book because he loved it very much.
世纪金榜导学号
A. took up B. gave up
C. picked up D. used up
D
②——肥皂在哪里? —Where is the soap?
——抱歉, 我用完了。
—Sorry, I have ____ __ ___.
③(2018·曲靖中考)当我们班上最好的歌手出现时, 每个
人都兴奋地喊叫起来。
When the best singer in our class _______ ___,
everyone shouted with excitement.
used it up
showed up
要点2 分数的表达法
Step 1难点·探
(1)你知道分数的英语表达方法吗?
(2)分数短语在句中作主语, 谓语动词用单数形式还是复
数形式?
Step 2语境·悟
*Because about one fifth of the air is made up of
oxygen, the water rises and fills about one fifth of the
jar. 因为大约五分之一的空气是由氧气组成, 所以水上
升并且充满广口瓶的大约五分之一。(P68)
*Two thirds of the water around the world is polluted.
世界上三分之二的水被污染了。
Step 3知识·得
(1)分数的分子用基数词, 分母用序数词; 当分子大于1
时, 分母要用复数形式; 分子和分母之间可以加连字符,
也可以不加。
(2)分数后面跟of短语作主语时, 谓语动词的单复数由of
后面的名词的单复数决定。
【助记】
分子基数词, 分母序数词, 分子大于1, 分母加 s。
Step 4考点·练
( )①(2018·黄冈中考)—Dad, about ________of
our classmates wear glasses.
—Oh, that’s terrible. You all should take good care of
your eyes. 世纪金榜导学号
A. three fourth B. third fourth
C. third fourths D. three quarters
D
( )②(2018·咸宁中考)—Nowadays China has
about 25, 000 kilometers of high-speed railways.
—That’s ________of the world’s total.
A. two third B. two-third
C. two thirds D. two three
C
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