Unit 7 Know Our World
Lesson 38
Ⅰ. 根据汉语提示写出下列单词或短语
1. 行星 n. ______
2. 十亿; 千兆n. ______
3. 总计; 总数n. , 总的; 总计的adj. ____
4. 增大, 增加 v. _______
5. 表面; 表层n. _______
planet
billion
total
increase
surface
6. 大西洋(的)n. &adj. _______
7. 北极的 adj. ______
8. 三分之一 _________
9. 三分之二 _________
10. 被……覆盖 _________________
Atlantic
Arctic
one third
two thirds
be covered with. . .
Ⅱ. 根据汉语提示完成下列句子
1. 在2010年, 世界总人口超过了七十亿。
In the year 2010, the world’s population was over 7
billion __ _____.
2. 到2050年, 世界的人口可能达到90亿。
__ _____, the world’s population may _____9 billion.
in total
By 2050 reach
3. 这些干燥的地方被叫作沙漠。
These dry places ___ ______deserts.
4. 居住在那些地方是不容易的。
It is ___ ___ __ _____in those places.
are called
not easy to live
5. 为了我们的子孙后代, 我们必须要善待地球。
It(The earth) ____ ___ _______well for our children
and our children’s children, too.
must be treated
Ⅲ. Read Lesson 38: The World Is a Big Place and
answer the questions
1. Which continent is covered with snow and ice all
year round?
__________Antarctica.
2. How many oceans are there in the world? And what
are they?
_____________________________________________
_____________________________________
Four. They are the Pacific Ocean, the Indian Ocean,
the Atlantic Ocean and the Arctic Ocean.
要点1 increase v. 增加; 增大
Step 1难点·探
(1)“增加到……”与“增加了……”在英语中的表达
方式一样吗?
(2)increase可构成什么短语?
Step 2语境·悟
*It is increasing very quickly.
它(世界人口)正在快速增长。(P100)
*The company has increased the price of its cars.
这个公司已经提高了它的汽车的价格。
*The price of the eggs has increased to ¥10 a kilo. 鸡
蛋的价格已经提到了一千克10元。
*The population of China has increased by 5 percent.
中国的人口增加了百分之五。
Step 3知识·得
increase作动词, 意为“增加; 增大”, 常见的两种搭配:
(1)increase ___+倍数或百分数, 后面跟的倍数或百分数
表示的是增幅, 意为“增加了……倍或百分
之……”。
(2)increase __+具体的增长后的数字, 后面跟的数字为
增加后所到达的数量, 表示“增加到了……”。
by
to
Step 4考点·练
①通货膨胀率增长了2% 。
The rate of inflation increased ___ 2%.
②Travelling is a good way __________(increase) one’s
knowledge of the world.
by
to increase
③这个小城镇的人口已经增加到了50万。
The population of the small town has ________ ___
500, 000.
increased to
( )④(2018·连云港中考)The total number of
online literature website users had _____to 352 million
by the end of June 2017. And the number is still
growing.
A. increased B. influenced
C. included D. introduced
A
要点2 one third 三分之一
Step 1难点·探
(1)在英语中, 分数如何表达?
(2)分数作主语时, 谓语动词应当怎样选择?
Step 2语境·悟
*We can’t live in water, and only about one third of our
planet is land.
我们不能居住在水里, 而全球只有大约三分之一是陆
地。(P100)
*He has finished two thirds of his homework.
他已经完成了他的作业的三分之二。
*Three fifths of the students in my school are boys.
我的学校里五分之三的学生是男孩。
*There is one third of the water left in the bottle.
瓶子里还剩下三分之一的水。
Step 3知识·得
(1)分数的基本表达方式: 分子用_______, 分母用_____
词; 当分子大于1时, 分母加_。
基数词 序数
s
(2)分数作主语时, 谓语动词的选择是由其后面的名词
决定的, 如果名词为复数名词, 则谓语动词用_____, 如
果名词为不可数名词, 则谓语动词用_____。
分数考点口诀: 先子后母, 子基母序; 子过2, 母用复; 名
词决定谓单复。
复数
单数
【拓展】特殊分数表达法
(1)一半的学生在这里。
One half of the students are here.
(2)四分之三的新加坡人口是中国人。
Three quarters of the population in Singapore are
Chinese.
Step 4考点·练
( )(2019·安顺中考)Nowadays, _____people like
HUAWEI phones better, and about _____of them are
adults.
A. the number of, four-fifths
B. a number of, four-fifth
C. a number of, four-fifths
D. the number of, four-five
C
要点3 be covered with 被……所覆盖
Step 1难点·探
(1)cover 有哪些词性?
(2)be covered with 是什么语态?
(3)be covered with 有没有同义短语?
Step 2语境·悟
*Antarctica is covered with snow and ice all year
round. 南极洲常年被冰雪覆盖。(P100)
*Please cover the pot with the cover.
请用这个盖子盖住锅。
*Does your book have a cover? 你的书有书皮吗?
*The turkey is covered by delicious gravy.
这个火鸡被美味的肉汁覆盖着。
Step 3知识·得
cover
v. 意为“用……覆盖”, 通常用于短语cover. .
.
____. . . (用……覆盖……)被动语态为be
_______ ____, 同义短语为be covered ___
n. 意为“盖子”可数名词。
with
covered with by
Step 4考点·练
( )①The floor is covered _____some old
newspaper.
A. with B. on C. for D. at
( )②The well is _____with a _____.
A. cover; cover B. covered; cover
C. covers; covered D. covers; covers
A
B