内容正文:
Unit 8 Our Blue Planet-同步知识复习-练习
【基础】
1、 单项选择
( ) 1. The Changjiang River is about 6,300 ______ long.
A. kilometre B. kilometres C. metre
( ) 2. We use water ______ food and clothes.
A. cook B. to cook C. cooking
( ) 3. ______ people visit the lake every year.
A. Thousands of B. Thousand of C. Thousands
( ) 4. It’s important ______ us to protect the Earth.
A. to B. for C. of
( ) 5. Please ______ the tap when you brush your teeth.
A. turn on B. turn off C. turn up
( ) 6. Water is ______ to all living things.
A. bad B. valuable C. dirty
2、 单词拼写
1. Water is very v________ in our daily life.
2. We must t________ off the tap after washing hands.
3. The o________ covers about 71% of the Earth.
4. There are m________ of stars in the sky.
5. It’s important to r________ water to save it.
6. Don’t l________ on the ground. It’s not polite.
3、 情景交际七选五
A: How long is the Changjiang River?
B: 1
A: Is water important to us?
B: 2
A: How can we save water?
B: 3
A: What’s the water cycle?
B: 4
A: What else can we do?
B: 5
A. We can turn off the tap.
B. It’s about 6,300 kilometres long.
C. Yes, it is.
D. I can’t find my bottle.
E. It’s the water cycle.
F. We need enough water every day.
G. Take a quick shower.
【提升】
1、 句型仿写
例:The river is long.
→ The river is 100 kilometres long.
1. The road is wide.
→ The road is 15 metres ________________.
2. The girl is tall.
→ The girl is 1.6 metres ________________.
3. The pool is deep.
→ The pool is 3 metres ________________.
4. The building is high.
→ The building is 30 metres ________________.
5. The bridge is long.
→ The bridge is 50 metres ________________.
6. We use water to clean rooms.(同义句)
We use water ________________ ________________ rooms.
2、 汉译英
1. 海洋覆盖地球 71% 的表面。
2. 节约用水对我们很重要。
3. 我们可以重复利用水浇花。
4. 这条河有多长?
5. 不要乱扔垃圾。
6. 每一滴水都很重要。
3、 任务型阅读
Our Earth
All living things need water. Water covers about 71% of the Earth’s surface. We can only use less than 1% of the water on Earth. Water is very important in our daily life. We use water to drink, cook and clean.
We must save water. We can turn off the tap, take short showers and reuse water. Everyone should try to protect our blue planet.
阅读短文,完成下列任务
1. What covers 71% of the Earth’s surface?
2. How much water can we use?
3. What do we use water to do?
4. How many ways to save water are mentioned?
5. What should we do for our planet?
【拓展】
1、 完形填空
Save Our Home
Water is very important for us. It is 1 in our daily life. All living things can’t live 2 water. We use water to wash, cook and 3 our rooms. We must try our best 4 water.
When we brush our teeth, we should turn 5 the tap. We can take short showers and reuse water. There are 6 of living things on the Earth. We must protect 7 home. It’s important for us 8 the Earth clean and green.
( ) 1. A. dangerous B. valuable C. dirty
( ) 2. A. with B. without C. from
( ) 3. A. clean B. to clean C. cleaning
( ) 4. A. save B. saving C. to save
( ) 5. A. on B. off C. up
( ) 6. A. billion B. billions C. two billions
( ) 7. A. we B. us C. our
( ) 8. A. keep B. to keep C. keeping
2、 语法填空
Today we learn about the Earth. Water 1.________ (be) very important to us. It’s 2.________ (value) in our daily life. We use water 3.________ (wash) and cook. We must try 4.________ (save) water.
We can turn 5.________ the tap. The Earth has 6.________ (billion) of living things. We must protect 7.________ (we) home. It’s important for us 8.________ (keep) it clean.
3、 书面表达
题目:Save Water, Save Our Home
写作要求:
1. 描述图片内容,说明水的重要性;
2. 写出3 条节水方法(必须结合图片);
3. 发出倡议,呼吁大家行动;
4. 必须使用短语:important, reuse, turn off, save;
5. 词数:80 词左右。
参考答案和解析
【基础】
一、单项选择
1. 答案:B
解析:数字 6,300 大于 1,可数名词要用复数形式,kilometre 复数为 kilometres。
2. 答案:B
解析:固定句型 use sth. to do sth. 用某物做某事,所以用 to cook。
3. 答案:A
解析:表示 “成千上万的” 模糊数量,用固定搭配 Thousands of;B、C 结构用法错误。
4. 答案:B
解析:固定句型 It’s important for sb. to do sth. 对某人来说做某事很重要,用介词 for。
5. 答案:B
解析:语境 “刷牙时关掉水龙头”;turn off 关掉;turn on 打开,turn up 调大。
6. 答案:B
解析:句意:水对所有生物都很宝贵。valuable 宝贵的;bad 坏的,dirty 脏的。
二、单词拼写
1. 答案:valuable
解析:句意 “水在我们的日常生活中非常宝贵”,valuable 意为 “宝贵的、有价值的”,符合语境。
2. 答案:turn
解析:固定搭配 turn off 意为 “关掉(水龙头、电器等)”,情态动词 must 后接动词原形,故填 turn。
3. 答案:ocean
解析:句意 “海洋覆盖了地球约 71% 的面积”,ocean 意为 “海洋”,符合地理常识与语境。
4. 答案:millions
解析:固定搭配 millions of 意为“数百万的、无数的”,表示模糊数量,修饰 stars(星星),故填 millions。
5. 答案:reuse
解析:句意 “重复利用水来节约它很重要”,reuse 意为“重复使用、再利用”,符合 “节约用水” 的主题语境。
6. 答案:litter
解析:句意 “不要在地上乱扔垃圾,这不礼貌”,litter 作动词意为 “乱扔垃圾”,符合语境;Don’t 后接动词原形,故填 litter。
三、情景交际七选五
1. 答案:B
解析:问句 How long is the Changjiang River?(长江有多长?)询问长度,答句需要回应具体长度。选项 B It’s about 6,300 kilometres long.(它大约 6300 千米长)直接回答了长度,符合语境。
2. 答案:C
解析:问句 Is water important to us?(水对我们重要吗?)是一般疑问句,需要用 Yes/No 来回答。选项 C Yes, it is.(是的,它很重要)是标准的肯定回答。
3. 答案:A
解析:问句 How can we save water?(我们怎样节约用水?)询问节水方法,选项 A We can turn off the tap.(我们可以关掉水龙头)是最直接、基础的节水方式,符合对话逻辑。
4. 答案:E
解析:问句 What’s the water cycle?(水循环是什么?)询问定义,选项 E It’s the water cycle. 是对问题的回应,匹配主题。
5. 答案:G
解析:问句 What else can we do?(我们还能做什么?)是接着前面的节水话题,询问其他方法。选项 G Take a quick shower.(快速淋浴)也是节水方法,符合语境。
【提升】
一、句型仿写
1. 答案:wide
解析:例句是 The river is long. → The river is 100 kilometres long.,结构为「描述词」在单位后保持不变。原句 The road is wide.,所以仿写后是 The road is 15 metres wide.(这条路 15 米宽)。
2. 答案:tall
解析:原句 The girl is tall.,仿写时保留形容词 tall,所以是 The girl is 1.6 metres tall.(这个女孩 1.6 米高)。
3. 答案:deep
解析:原句 The pool is deep.,仿写时保留形容词 deep,所以是 The pool is 3 metres deep.(这个水池 3 米深)。
4. 答案:high
解析:原句 The building is high.,仿写时保留形容词 high,所以是 The building is 30 metres high.(这栋楼 30 米高)。
5. 答案:long
解析:原句 The bridge is long.,仿写时保留形容词 long,所以是 The bridge is 50 metres long.(这座桥 50 米长)。
6. 答案:for cleaning
解析:原句 We use water to clean rooms.(我们用水打扫房间),use sth. to do sth. 与 use sth. for doing sth. 是同义结构,所以填 for cleaning。
二、汉译英
1. 答案:Oceans cover 71% of the Earth's surface.
解析:“海洋” 用复数 Oceans;“覆盖” 用动词 cover;“地球的表面” 是 the Earth's surface;百分数 71% 直接写作 71% 即可。
2. 答案:It is very important for us to save water.
解析:使用固定句型 It is important for sb. to do sth.(对某人来说做某事很重要);“节约用水” 是 save water。
3. 答案:We can reuse water to water flowers.
解析:“重复利用” 用动词 reuse;“用水浇花” 用 use water to water flowers,这里用 reuse water to water flowers 更贴合 “重复利用” 的含义;情态动词 can 后接动词原形。
4. 答案:How long is the river?
解析:询问物体长度用固定句型 How long is...?;“这条河” 是 the river。
5. 答案:Don’t litter. / 也可写为 Don't throw rubbish everywhere.
解析:这是祈使句的否定形式,用 Don't + 动词原形;“乱扔垃圾” 的常用表达是 litter(动词),也可以用 throw rubbish everywhere。
6. 答案:Every drop of water is very important.
解析:“每一滴水” 是 every drop of water;主语为单数,be 动词用 is;“很重要” 是 very important。
三、任务型阅读 答案 + 解析
1. 答案:Water covers about 71% of the Earth's surface.
解析:原文第一自然段第二句直接给出信息:Water covers about 71% of the Earth’s surface.
2. 答案:We can only use less than 1% of the water on Earth.
解析:原文第一自然段第三句直接给出信息:We can only use less than 1% of the water on Earth.
3. 答案:We use water to drink, cook and clean.
解析:原文第一自然段最后一句直接给出信息:We use water to drink, cook and clean.
4. 答案:Three ways.
解析:原文第二自然段提到了三种节水方法:turn off the tap, take short showers and reuse water,所以是 3 种。
5. 答案:We should try to protect our blue planet.
解析:原文第二自然段最后一句直接给出信息:Everyone should try to protect our blue planet.
【拓展】
一、完形填空
1. valuable
解析:根据上下文,水对我们很重要,所以它在日常生活中是宝贵的。valuable 意为 “宝贵的”,符合语境。dangerous(危险的)和 dirty(脏的)均不符合文意。
2. B. without
解析:固定搭配 can’t live without sth. 表示 “没有某物就无法生存”。句意为 “所有生物没有水都无法生存”。
3. A. clean
解析:句子 We use water to wash, cook and clean our rooms. 中,to wash, cook and clean 是三个并列的动词原形,都跟在 use water to 后面,所以选动词原形 clean。
4. C. to save
解析:固定搭配 try one’s best to do sth. 表示 “尽某人最大努力做某事”,所以用不定式 to save。
5. B. off
解析:固定短语 turn off the tap 表示 “关掉水龙头”,是节水话题的高频表达。turn on 是 “打开”,turn up 是 “调大”,均不符合语境。
6. B. billions
解析:固定搭配 billions of 表示 “数十亿的”,是模糊数量表达。billion 前有具体数字时不加 s,表示 “成百上千” 时用 billions of。
7. C. our
解析:修饰名词 home 需要用形容词性物主代词 our(我们的)。we 是主格,us 是宾格,均不能修饰名词。
8. B. to keep
解析:固定句型 It is important for sb. to do sth. 表示 “对某人来说做某事很重要”,所以用不定式 to keep。
二、语法填空
1. 答案:is
解析:主语 water 是不可数名词,视为单数,一般现在时中 be 动词用 is。
2. 答案:valuable
解析:系动词 is 后需接形容词作表语,value 的形容词形式是 valuable,意为 “宝贵的”。
3. 答案:to wash
解析:固定搭配 use sth. to do sth. 表示 “用某物做某事”,此处 to wash 和 cook 并列。
4. 答案:to save
解析:固定搭配 try to do sth. 表示 “尽力做某事”,用不定式 to save。
5. 答案:off
解析:固定短语 turn off the tap 意为 “关掉水龙头”,是节水话题高频表达。
6. 答案:billions
解析:固定搭配 billions of 表示 “数十亿的”,修饰复数名词 living things,表示模糊数量。
7. 答案:our
解析:修饰名词 home 需用形容词性物主代词,we 的形容词性物主代词是 our,意为 “我们的”。
8. 答案:to keep
解析:固定句型 It is important for sb. to do sth. 表示 “对某人来说做某事很重要”,用不定式 to keep。
三、书面表达
Save Water, Save Our Home
Water is very important in our daily life. We need it to drink, cook and clean.
We can do many things to save water. First, turn off the tap when brushing teeth. Second, take a quick shower. Third, reuse water to water flowers.
Small actions can make a big difference. Let’s save water together and protect our blue planet.
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