2026年新课程学习辅导八年级英语下册人教版第48页答案
二、用所给单词的正确形式填空。
1. Mum was worried about the
depth
(deep) of the cut on my finger and took me to the hospital.
2. The Huangguoshu Waterfall is one of the greatest
wonders
(wonder) of the natural world. Many tourists go to visit it every year.
3. It's
unusual
(usual) for Tom to be late—he's always on time!
4. Before building the model house, Tom wrote down all the
measurements
(measurement) on a piece of paper.
5. The blue whale is the
biggest
(big) animal in the world.

答案

1. depth
2. wonders
3. unusual
4. measurements
5. biggest

解析

【分析】
本题为英语词汇形式填空题,需结合句子结构、语境及语法规则完成变形:第1题需用定冠词后接名词的规则转换词性;第2题依据“one of+可数名词复数”结构变形;第3题根据语境判断需用形容词的否定形式;第4题按“all+可数名词复数”规则变形;第5题结合范围用形容词最高级变形。
【解析】
1. 句意:妈妈担心我手指伤口的深度,带我去了医院。定冠词the后需接名词,形容词deep的名词形式为depth,故填depth。
2. 句意:黄果树瀑布是自然界最伟大的奇观之一,每年很多游客前来参观。“one of + 形容词最高级 + 可数名词复数”表示“……之一”,可数名词wonder的复数形式为wonders,故填wonders。
3. 句意:汤姆迟到是不寻常的——他总是准时!根据后半句“他总是准时”可知,此处需表达“不寻常的”,形容词usual的否定形式为unusual,故填unusual。
4. 句意:在建造模型房子前,汤姆把所有尺寸写在一张纸上。all后接可数名词复数,可数名词measurement的复数形式为measurements,故填measurements。
5. 句意:蓝鲸是世界上最大的动物。由范围“in the world”可知,此处需用形容词最高级,形容词big的最高级为biggest,故填biggest。
【答案】
1. depth
2. wonders
3. unusual
4. measurements
5. biggest
【知识点】
词性转换、名词复数、形容词的级
【点评】
本题考查英语基础词汇的词形变化,涉及词性转换、名词复数、形容词最高级及否定形式等核心知识点,是初中英语的基础题型,侧重考查学生对词汇变形规则的掌握。
【难度系数】
0.8
三、用方框中所给短语的正确形式填空。
below sea level in size on earth
square kilometre the bottom of
1. The sunlight can hardly reach
the bottom
of
the deep sea, so it's very dark there.
2. The Sahara Desert is about 9,000,000
square kilometres
in size.
3. The surface of the Dead Sea is about 400 metres
below sea level
.
4. Pandas are one of the most lovely animals
on earth
, and they mainly live in China.
5. These two boxes look similar, but they are different
in size
—one is much bigger than the other.

答案

1. the bottom of
2. square kilometres
3. below sea level
4. on earth
5. in size

解析

【分析】首先明确方框内各短语的含义:below sea level(低于海平面)、in size(在大小/尺寸上)、on earth(在世界上;究竟)、square kilometre(平方公里)、the bottom of(……的底部)。解题时需先理解每个句子的句意,再结合短语含义匹配,同时注意名词的单复数变形(如square kilometre在数字大于1时需变复数)。
【解析】1. 句意:阳光很难到达深海的底部,因此那里非常黑暗,结合语境选the bottom of;2. 句意:撒哈拉沙漠面积约900万平方公里,square kilometre是可数名词,数字9,000,000大于1,故用复数形式square kilometres;3. 句意:死海表面约低于海平面400米,选below sea level;4. 句意:熊猫是世界上最可爱的动物之一,选on earth;5. 句意:这两个盒子看起来相似,但大小不同,一个比另一个大很多,选in size。
【答案】1. the bottom of
2. square kilometres
3. below sea level
4. on earth
5. in size
【知识点】介词短语的用法;名词单复数变化;短语搭配填空
【点评】本题为基础短语运用题,需学生掌握常用介词短语含义,结合语境匹配,同时注意名词数的变形,难度较低,适合基础阶段练习。
【难度系数】0.6
四、短文填空。
请从方框内选择适当的词并用其正确形式填空,使文章完整连贯。注意每空一词,每词仅用一次,有两词为多余选项。
it wonder come over cool bring
if though deep with kind only
Do you know the Grand Canyon (科罗拉多大峡谷)? It's one of the most famous natural 1.
wonders
in the world. It is about 446 kilometres long and about 1.6 kilometres 2.
deep
. This great canyon has a long history. It was formed 3.
over
millions of years ago.
At the bottom of the canyon, you can find different 4.
kinds
of plants and animals. Some of them live 5.
only
in this special place. The temperature here changes a lot. It can be very hot at the bottom, but much 6.
cooler
at the top.
Many visitors come here every year to enjoy 7.
its
beauty and learn about its geography. 8.
If
you want to get to the bottom, you can hike down.
Don't forget to 9.
bring
enough water and wear comfortable shoes. Safety 10.
comes
first when you travel in such a huge place. The Grand Canyon is truly a place full of amazing sights!

答案

1. wonders
2. deep
3. over
4. kinds
5. only
6. cooler
7. its
8. If
9. bring
10. comes

解析

【分析】
首先通读全文,理解文章介绍科罗拉多大峡谷的主旨;接着明确方框内的词汇,逐空分析时结合语境、语法规则(如名词复数、形容词比较级、物主代词、固定搭配、时态等)选择合适的词,并调整其正确形式,同时确保每词仅用一次,最后检查语句通顺。
【解析】
1. 考查名词复数:one of后接可数名词复数,wonder意为“奇迹”,故填wonders。
2. 考查形容词:此处描述大峡谷的深度,1.6 kilometres deep符合语境,故填deep。
3. 考查固定搭配:over millions of years表示“数百万年期间”,故填over。
4. 考查固定搭配:different kinds of意为“不同种类的”,kind需用复数,故填kinds。
5. 考查副词:句意为“一些生物只生活在这个特殊地方”,only表“仅仅”,符合语境,故填only。
6. 考查形容词比较级:much修饰比较级,结合前文hot可知此处表“更凉快”,cool的比较级为cooler,故填cooler。
7. 考查物主代词:修饰名词beauty需用形容词性物主代词,it的形容词性物主代词为its,故填its。
8. 考查条件状语从句:此处表假设,用if引导,句首首字母大写,故填If。
9. 考查动词:forget to do sth表示“忘记做某事”,结合语境“带足够的水”,填动词原形bring,故填bring。
10. 考查动词时态:主语safety为单数,一般现在时中动词用第三人称单数,come的三单形式为comes,故填comes。
【答案】
1. wonders 2. deep 3. over 4. kinds 5. only 6. cooler 7. its 8. If 9. bring 10. comes
【知识点】
固定搭配;形容词比较级;物主代词
【点评】
本题为短文填空,综合考查词汇运用、语境理解及语法规则,需结合上下文选择并变形方框内的单词,难度适中,适合中等水平学生练习。
【难度系数】
0.6