学校:___________姓名：___________班级：___________考号：___________
Unit 8 A green world
重点单词及词性转换易错题100题（三题型）
说明：此专题分三种题型，难度依次递升，大家根据实际情况选择进行专项训练！
一、根据汉语提示填空，每小题1分，满分30分
1．Nobody noticed this (空的) box. In fact, it was made of gold.
2．Plants grow well in rich (土壤).
3．These bowls are made of (塑料).
4．Most people can improve their spoken English (靠，用) practising more.
5．The park has taken some (措施) to limit the number of visitors.
6．She was (罚款) 50 yuan for picking up the flowers in the park.
7．The animal hid itself by (挖) a hole in the ground.
8．Making (调查) is a scientific way to solve problems.
9． (关掉) the gas and the lights when you leave home.
10．—What a (差别) a day makes in our life!
—Oh, you’re right! Maybe it’s now sunny, now rainy.
11．People in the world should protect the environment by (循环使用) waste.
12．Follow these four (步骤), and you can make a big difference to the Earth.
13．Trees can reduce (灰尘) and keep the air clean.
14．Some old cars are on (陈列) in the city museum.
15．New energy costs little and will never . (用之不尽)
16．It is a good idea that parents should (允许) their children to speak out their different ideas.
17．Lily, don’t play with fire. It may (导致；造成) a fire.
18．Every little thing you do may make a great (不同) to others.
19．Tom did his homework so (粗心地) that he made a lot of mistakes.
20．People can save energy by (回收)waste.
21．Are you (认真) You can’t just give up your job so soon.
22．Some Middle East countries are (丰富的) in oil.
23．The pictures of the brave firemen are (展示) on the wall.
24．The factory (产生) less pollution because it uses a type of new energy.
25．—What’s the oldest (活着的) thing on the Earth
—No one knows for sure.
26．The policemen moved in to (分开) the two groups of people.
27．I am sure she didn’t want to do you any (伤害).
28．Everyone thinks Zhuge Liang was much (明智) than Zhou Yu.
29．Laws have been made to prevent the factories from (污染) the air and water.
30． (石油) and gas are unrenewable natural resources.
二、根据首字母填空，每小题1分，满分30分
31．Please t off the lights when you leave your bedroom.
32．The factory has decided to p more cars next year.
33．In order to finish the work in time, we set a time l .
34．The classroom is e . All the students have gone to the playground to do activities.
35．A good teacher should encourage the students to achieve their full p and help them make their dreams come true.
36．The river has been p . Look! How dirty it is!
37．As we all know, WeChat Pay made a d to our life.
38．You should learn to do things by yourself instead of d on your parents.
39．Having milk tea with too much sugar is h to your health.
40．There is nothing in the schoolbag. It’s e .
41．Time is money. We are supposed to spend it w .
42．My parents don’t a me to stay out after eight in the evening.
43．Although p bags are cheap and useful, they bring about a lot of pollution.
44．Reading books on the bus is h to your eyes.
45．I am not joking. I am very s .
46．That sounds rather s , but in fact it’s very difficult.
47．The man wanted to d a hole on the ground to plant the tree.
48．When the fire happens, we had better turn off the g .
49．Students began to sweep away the d on the floor.
50．Everyone should take action now to s rubbish into different groups.
51．Cover your seed with s and water it every day.
52．We should f a good habit of getting up early.
53．The dish is s and quick to make. I can teach you.
54．John is a “problem child”. He often c problems for his family.
55．This is a big factory and it can p 100 tons of salt every day.
56．Timmy did his homework c , so he can’t get high points.
57．The s made by scientists show that it is important for us to live a green life.
58．Success doesn’t d on luck. To be successful, you need to work hard.
59．We should make use of the knowledge we've got in school w .
60．Many poor people became r than before with the help of the targeted poverty alleviation policies(精准扶贫政策).
三、用单词的正确形式填空，每小题1分，满分40分
61．We shall learn to (communication) with people from other countries.
62．If you have to use plastic water bottles, do (use) them.
63．Several days later, a perfect plan (form) in his mind.
64．Please use both (side) of the paper.
65．It is a good way for us (develop) a green lifestyle.
66．All the food and water (send) to the disaster area tomorrow.
67．If we continue down trees, birds will have nowhere to live. (cut)
68．They (dig) very deep in the field in order to find the treasure the other day.
69．More than three quarters of the population are Chinese in Singapore, so you can (simple) speak Putonghua a lot of the time.
70．There are too many (different) between us.
71．He (invite) to speak at tomorrow’s parents’ meeting.
72．The new computers (use) by the students the other day.
73．The dirty clothes need (wash).
74．We shall take the old newspaper and the empty bottles for (recycle).
75．People should take action at once to protect our natural (resource).
76．Are you interested in (organize) parties
77．It’s important to spend your time (wise).
78．My dad used to (drive) me to school, but now I take the school bus.
79．—How can I lose weight
—By (exercise) more.
80．Our environment (change) for the better. It’s the result of our working together.
81．More and more trees (plant) in that area over the next few years.
82．You (punish) if you break the rules.
83．I’m sorry for on your foot. (step)
84． (reduce) the number of cars, the government has done something useful.
85．We should never throw letter away (care), as well as not shout in public.
86．When you enter the museum, you (take) round it by a guide. Please keep quiet.
87．Before you leave home, remember (turn) off the lights.
88．To be honest, you did the job very (careful). It made your boss angry.
89．The waste water from the factory (pollute) the rivers nearby recently.
90．We are not allowed (bring) mobile phones to school.
91．As the Internet becomes more and more important, we can’t imagine (live) without the web.
92．After 40 years’ development in China, our country can all kinds of transports with the top class and quality. (product).
93．Almost everybody knows that air pollution (harm) our health.
94．The plastic bags are bad for the environment. Don’t throw them away (careful).
95． (take) showers in winter takes longer time.
96．A talk on learning English (give) in the school hall next week.
97．Mary remembered (turn) off the light when she left home. But it was on when she came back.
98．I (try) to help you organize your show if I have time.
99．This factory will fashionable bags for women next year. (product)
100．The patient should be (separate) from the others.学校:___________姓名：___________班级：___________考号：___________
Unit 8 A green world
重点单词及词性转换易错题100题（三题型）
说明：此专题分三种题型，难度依次递升，大家根据实际情况选择进行专项训练！
一、根据汉语提示填空，每小题1分，满分30分
1．Nobody noticed this (空的) box. In fact, it was made of gold.
【答案】empty
【详解】句意：没有人注意到这个空盒子。事实上，它是金子做的。“空的”empty，形容词作定语修饰名词box。故填empty。
2．Plants grow well in rich (土壤).
【答案】soil
【详解】句意：植物在肥沃的土壤中长得很好。土壤：soil，不可数名词，特指植物生长的表层土壤。故填soil。
3．These bowls are made of (塑料).
【答案】plastic
【详解】句意：这些碗是由塑料制成的。plastic“塑料”，是不可数名词。故填plastic。
4．Most people can improve their spoken English (靠，用) practising more.
【答案】by
【详解】句意：大多数人可以通过多练习来提高英语口语。by“靠，用”，介词，表示用某种方式或手段，其后接动名词作宾语。故填by。
5．The park has taken some (措施) to limit the number of visitors.
【答案】steps
【详解】句意：公园采取措施限制游客数量。step步骤；措施。根据“some”可知，此处用复数形式，step的复数是steps。故填steps。
6．She was (罚款) 50 yuan for picking up the flowers in the park.
【答案】fined
【详解】句意：她因在公园里摘花被罚款50元。罚款：fine，句子主语She与“fine”之间是被动关系，要用被动语态，其结构为be+过去分词，was已给出，fine的过去分词是fined。故填fined。
7．The animal hid itself by (挖) a hole in the ground.
【答案】digging
【详解】句意：那只动物通过在地上挖洞来隐藏自己。dig“挖”，介词by后接动名词形式。故填digging。
8．Making (调查) is a scientific way to solve problems.
【答案】surveys
【详解】句意：调查是解决问题的一种科学方法。survey“调查”，可数名词，应用复数形式，表示概数概念。故填surveys。
9． (关掉) the gas and the lights when you leave home.
【答案】Turn off
【详解】句意：当你离开家的时候关掉煤气和灯。关掉：turn off，句子是祈使句，以动词原形开头。故填Turn off。
10．—What a (差别) a day makes in our life!
—Oh, you’re right! Maybe it’s now sunny, now rainy.
【答案】difference
【详解】句意：——一天对我们的生活有多大的影响！——哦，你说得对！也许现在是晴天，现在是雨天。difference“差别”，名词。make a difference“有影响”。故填difference。
11．People in the world should protect the environment by (循环使用) waste.
【答案】recycling
【详解】句意：世界上的人们应该通过 回收废物来保护环境。根据汉语提示及空后“waste”可知，此处应用recycle表示“循环使用”，结合空前“by”为介词可知，此处应用动词ing形式。故填recycling。
12．Follow these four (步骤), and you can make a big difference to the Earth.
【答案】steps
【详解】句意：遵循这四个步骤，你可以给地球带来很大的不同。step“步骤”，four修饰可数名词复数，故填steps。
13．Trees can reduce (灰尘) and keep the air clean.
【答案】dust
【详解】句意：树木可以减少灰尘，保持空气清洁。结合句意和汉语提示可知，dust“灰尘”，不可数名词，在句中作宾语。故填dust。
14．Some old cars are on (陈列) in the city museum.
【答案】display
【详解】句意：一些旧车在城市博物馆展出。根据“Some old cars are on…”和中文提示可知，此处应该填入display，on display“展出”，介词短语。故填display。
15．New energy costs little and will never . (用之不尽)
【答案】 run out
【详解】句意：新能源成本很低，而且永远不会用完。根据“will never”和汉语提示可知，run out表示“耗尽”，will never do sth表示“永远不会……”，空处需填动词原形。故填run；out。
16．It is a good idea that parents should (允许) their children to speak out their different ideas.
【答案】allow
【详解】句意：父母应该让孩子说出自己的不同想法，这是个好主意。根据“ parents should…their children to speak out their different ideas.”可知，空处指的是allow sb. to do sth.“允许某人做某事”，情态动词“should”后接动词原形。故填allow。
17．Lily, don’t play with fire. It may (导致；造成) a fire.
【答案】cause
【详解】句意：莉莉，不要玩火。它可能会导致一场火灾。导致，造成：cause，情态动词may后加动词原形。故填cause。
18．Every little thing you do may make a great (不同) to others.
【答案】difference
【详解】句意：你做的每一件小事都可能对别人产生很大的影响。结合句意和汉语提示可知，make a difference“有影响”，符合语境，固定搭配。故填difference。
19．Tom did his homework so (粗心地) that he made a lot of mistakes.
【答案】carelessly
【详解】句意：汤姆做作业如此粗心以至于他犯了很多错误。结合句意和汉语提示可知，此处考查carelessly“粗心地”，副词，在句中修饰动词“did”。故填carelessly。
20．People can save energy by (回收)waste.
【答案】recycling
【详解】句意：人们可以通过回收废物来节省能源。根据提示词和语境可知，recycle“回收”，动词，by是介词，后接动名词，recycle的动名词形式是recycling。故填recycling。
21．Are you (认真) You can’t just give up your job so soon.
【答案】serious
【详解】句意：你是认真的吗？你不能这么快就放弃工作。根据汉语提示可知，空处应填serious“认真的”，形容词作表语。故填serious。
22．Some Middle East countries are (丰富的) in oil.
【答案】rich
【详解】句意：一些中东国家石油储量丰富。丰富的：rich，形容词作表语。故填rich。
23．The pictures of the brave firemen are (展示) on the wall.
【答案】displayed
【详解】句意：勇敢的消防队员的照片展示在墙上。display展示；根据主语和谓语动词之间是动宾关系，所以用被动结构：主语+be+动词的过去分词，display的过去分词为displayed，故填displayed。
24．The factory (产生) less pollution because it uses a type of new energy.
【答案】produces
【详解】句意：这家工厂使用一种新能源，因此污染较少。产生：produce，为动词，主语为三单形式，时态为一般现在时，应用动词三单形式。故填produces。
25．—What’s the oldest (活着的) thing on the Earth
—No one knows for sure.
【答案】living
【详解】句意：——地球上最古老的生物是什么？——没有人确切知道。“活着的”为living，形容词在句中作定语，living thing意为“生物”，故填living。
26．The policemen moved in to (分开) the two groups of people.
【答案】separate
【详解】句意：警察们上前把两群人分开。根据汉语提示可知，“分开”对应的英文是“separate”，动词，“to”后面接动词原形构成动词不定式，表示目的。故填separate。
27．I am sure she didn’t want to do you any (伤害).
【答案】harm
【详解】句意：我确定她不想对你造成任何伤害。harm“伤害”。harm是不可数名词，故填harm。
28．Everyone thinks Zhuge Liang was much (明智) than Zhou Yu.
【答案】wiser
【详解】句意：大家都认为诸葛亮比周瑜明智得多。wise“明智的”，结合“than”可知，此处用形容词比较级。故填wiser。
29．Laws have been made to prevent the factories from (污染) the air and water.
【答案】polluting
【详解】句意：已经制定了法律来防止工厂污染空气和水。“污染”为pollute，是动词，prevent sb. doing sth.意为“阻止某人做某事”，故填polluting。
30． (石油) and gas are unrenewable natural resources.
【答案】Oil
【详解】句意：石油和天然气是不可再生的自然资源。根据汉语提示可知，空处应填oil“石油”，不可数名词，句首字母大写。故填Oil。
二、根据首字母填空，每小题1分，满分30分
31．Please t off the lights when you leave your bedroom.
【答案】(t)urn
【详解】句意：当你离开卧室的时候，请关灯。根据首字母和语境可知，当你离开卧室的时候，请关灯。关灯“turn off the light”，此句是一个祈使句，turn用动词原形。故填(t)urn。
32．The factory has decided to p more cars next year.
【答案】(p)roduce
【详解】句意：这家工厂决定明年生产更多汽车。根据“The factory has decided to … more cars next year.”以及首字母提示可知，此处指生产汽车，produce“生产”，动词；decide to do sth.表示“决定做某事”，to为不定式符号后接动词原形。故填(p)roduce。
33．In order to finish the work in time, we set a time l .
【答案】(l)imit
【详解】句意：为了及时完成工作，我们规定了时限。根据“In order to finish the work in time”和“set a time ...”及首字母可知，应是规定了时限以帮助及时完成工作，limit“限制”，time limit“时限”。故填(l)imit。
34．The classroom is e . All the students have gone to the playground to do activities.
【答案】(e)mpty
【详解】句意：教室里空荡荡的。所有的学生都去操场做活动了。根据“All the students have gone to the playground to do activities.”可知教室里面没有人，结合首字母提示可知empty“空的”符合题意。故填(e)mpty。
35．A good teacher should encourage the students to achieve their full p and help them make their dreams come true.
【答案】(p)ower
【详解】句意：一个好的老师应该鼓励学生充分发挥自己的潜能，帮助他们实现自己的梦想。根据首字母提示及“encourage the students to achieve their full”可知，此处指的是“潜能”，英语是power“能力”不可数名词，此处应用原形，故填(p)ower。
36．The river has been p . Look! How dirty it is!
【答案】(p)olluted
【详解】句意：这条河被污染了。看！多脏啊！根据“How dirty it is”可知，河流被污染了，“污染”pollute，根据“The river has been”可知，此处应用现在完成时的被动语态，故空格处应用过去分词。故填(p)olluted。
37．As we all know, WeChat Pay made a d to our life.
【答案】(d)ifference
【详解】句意：众所周知，微信支付对我们的生活产生了影响。根据“made a...to our life”和首字母可知，此处使用difference“差别”，名词，make a difference to“对……有影响”。故填(d)ifference。
38．You should learn to do things by yourself instead of d on your parents.
【答案】(d)epending
【详解】句意：你应该学会自己做事情，而不是依靠你的父母。根据首字母提示和“learn to do things by yourself”可知，不要依靠父母，depend on“依靠”；介词of后接动名词作宾语，depending符合句意，故填(d)epending。
39．Having milk tea with too much sugar is h to your health.
【答案】(h)armful
【详解】句意：喝含糖量过高的奶茶对你的健康有害。根据“Having milk tea with too much sugar is…to your health.”的语境及常识并结合首字母提示可知，太多糖对健康有害，be harmful to…“对……有害”，是固定搭配。故填(h)armful。
40．There is nothing in the schoolbag. It’s e .
【答案】(e)mpty
【详解】句意：书包里什么都没有。它是空的。nothing意思是“没有东西”，表示这个书包是空的。根据首字母提示可知，空格需填形容词，表示“空的”。empty意思是“空的”，为形容词，符合题意。故填(e)mpty。
41．Time is money. We are supposed to spend it w .
【答案】(w)isely
【详解】句意：时间就是金钱。我们应该明智地使用时间。Time is money为常用表达，表示时间的珍贵，spend为动词，空格处需用副词对其修饰；结合首字母提示可知空格处需表示“明智地”，英文是wisely。故填(w)isely。
42．My parents don’t a me to stay out after eight in the evening.
【答案】(a)llow
【详解】句意：我的父母不允许我晚上八点后待在外面。此处句子缺少谓语动词，根据语境和首字母提示，此处说的是不允许晚上八点后待在外面，allow sb. to do sth.表示“允许某人做某事”，don’t后接动词原形。故填(a)llow。
43．Although p bags are cheap and useful, they bring about a lot of pollution.
【答案】(p)lastic
【详解】 句意：虽然塑料袋既便宜又实用，但它们造成了很多污染。根据首字母“p”以及后文“bags are cheap and useful, they bring about a lot of pollution”可推测，这里说的是塑料袋，“塑料的”英文表达是“plastic”，“plastic bags”表示“塑料袋”，符合题意。故填(p)lastic。
44．Reading books on the bus is h to your eyes.
【答案】(h)armful
【详解】句意：在公交车上看书对你的眼睛有害。根据“Reading books on the bus”并结合首字母可知，此处使用harmful“有害的”，形容词，be harmful to“对……有害”，故填(h)armful。
45．I am not joking. I am very s .
【答案】(s)erious
【详解】句意：我不是在开玩笑。我非常认真。根据I am not joking.可知我是认真的，作为系动词am的表语，有副词very修饰，故用形容词，故为(s)erious。
46．That sounds rather s , but in fact it’s very difficult.
【答案】(s)imple
【详解】句意：那听起来相当简单，但实际上却非常难。根据“in fact it’s very difficult”和首字母提示可知，此处要填simple；simple“简单的”，形容词作表语。故填(s)imple。
47．The man wanted to d a hole on the ground to plant the tree.
【答案】(d)ig
【详解】句意：那个人想在地上挖一个洞来种这棵树。根据空后“a hole”可知，此处指“挖洞”，“dig a hole”表达“挖洞”，又因“wanted to”后加动词原形，故填(d)ig。
48．When the fire happens, we had better turn off the g .
【答案】(g)as
【详解】句意：发生火灾时，我们最好关掉天然气。根据首字母提示可知，此处指的是gas“天然气”，故填(g)as。
49．Students began to sweep away the d on the floor.
【答案】(d)ust
【详解】句意：学生们开始打扫地板上的灰尘。根据“sweep away the … on the floor”及首字母可知，此处指打扫地板上的灰尘，dust“灰尘”，不可数名词，故填(d)ust。
50．Everyone should take action now to s rubbish into different groups.
【答案】(s)eparate
【详解】句意：每个人现在都应该为把垃圾分类进不同的组而行动。根据语境以及首字母提示，需填写separate“分类”，是动词。故填(s)eparate。
51．Cover your seed with s and water it every day.
【答案】(s)oil
【详解】句意：用泥土覆盖你的种子，每天浇水。根据“Cover your seed with”以及首字母可知，此处考查名词soil“土壤”。故填(s)oil。
52．We should f a good habit of getting up early.
【答案】(f)orm
【详解】句意：我们应该养成早起的好习惯。根据“a good habit of getting up early.”和首字母可知，此处是指形成好习惯。form“形成”，动词，should后加动词原形，故填(f)orm。
53．The dish is s and quick to make. I can teach you.
【答案】(s)imple
【详解】句意：这道菜很简单，很快就能做，我能教你。根据句意、首字母提示及句子成分可知，the dish作主语，is是系动词，缺表语，形容词simple“简单的”可作表语，也符合句意。故填(s)imple。
54．John is a “problem child”. He often c problems for his family.
【答案】(c)auses
【详解】句意：约翰是个“问题儿童”。他经常给他的家庭制造麻烦。根据首字母提示和“problems for his family.”可知是制造麻烦，cause“造成，使发生”符合题意，结合主语“He”以及语境，可知该句陈述事实，是一般现在时，动词应填三单形式。故填(c)auses。
55．This is a big factory and it can p 100 tons of salt every day.
【答案】(p)roduce/(p)rocess
【详解】句意：这是一家大工厂，每天能生产/加工100吨盐。根据“it can p...100 tons of salt every day.”可知，此处是指工厂能生产/加工100吨盐。produce“生产”/process“加工”，动词；can后跟动词原形。故填(p)roduce/(p)rocess。
56．Timmy did his homework c , so he can’t get high points.
【答案】(c)arelessly
【详解】句意：Timmy做作业很粗心，所以他不能得高分。根据“he can’t get high points”可知，Timmy做作业很粗心，carelessly“粗心地”，副词修饰动词。故填(c)arelessly。
57．The s made by scientists show that it is important for us to live a green life.
【答案】 (s)urveys
【详解】句意：科学家的调查显示，对我们来说过绿色生活很重要。根据“The ... made by scientists show that it is important for us to live a green life.”以及首字母提示可知，此处指科学家的调查显示，survey“调查”符合句意，结合show可知此处用复数表泛指。故填(s)urveys。
58．Success doesn’t d on luck. To be successful, you need to work hard.
【答案】(d)epend
【详解】句意：成功并不取决于运气。要想成功，你需要努力工作。根据“To be successful, you need to work hard.”和首字母提示可知，成功并不取决于运气。depend on“取决于，依靠”，doesn’t后用动词原形。故填(d)epend。
59．We should make use of the knowledge we've got in school w .
【答案】(w)isely
【详解】句意：我们应该明智地利用学校里所学的知识。动词make use需用副词修饰；根据句意语境和首字母提示，可知填wisely。
60．Many poor people became r than before with the help of the targeted poverty alleviation policies(精准扶贫政策).
【答案】(r)icher
【详解】句意：在精准扶贫政策的帮助下，许多贫困人口比以前富裕了。became后接形容词作表语，根据“with the help of the targeted poverty alleviation policies”可知，在扶贫政策的帮助下，人们变得更富有了，rich“富有的”，比较级是richer，故填(r)icher。
三、用单词的正确形式填空，每小题1分，满分40分
61．We shall learn to (communication) with people from other countries.
【答案】communicate
【详解】句意：我们应该学习和来自其他国家的人沟通。根据“We shall learn to...with people from other countries.”可知，learn to do sth.“学习做某事”，所以应用动词原形communicate。故填communicate。
62．If you have to use plastic water bottles, do (use) them.
【答案】 reuse
【详解】句意：如果你不得不使用塑料水瓶，那就重复使用它们。分析句子结构，“do”在这里是强调词，用于强调谓语动词，其后需接动词原形，“reuse”表示“重复使用” ，符合语境，强调在使用塑料水瓶的情况下要进行重复利用这一行为。故填reuse。
63．Several days later, a perfect plan (form) in his mind.
【答案】formed
【详解】句意：几天后，一个完美的计划在他脑海中形成了。根据“Several days later”可知句子时态为一般过去时，主语是“a perfect plan”，时态一致需用过去式“formed”。故填formed。
64．Please use both (side) of the paper.
【答案】sides
【详解】句意：请使用纸的两面。根据“both”可知要用两面，用side的复数形式sides。故填sides。
65．It is a good way for us (develop) a green lifestyle.
【答案】to develop
【详解】句意：这是我们发展绿色生活方式的好方法。根据“It is a good way for us”可知，设空处填所给词develop“发展”的不定式，it is+名词+for sb to do“对某人来说做某事是……”。故填to develop。
66．All the food and water (send) to the disaster area tomorrow.
【答案】will be sent/are going to be sent
【详解】句意：明天所有的食物和水都会被送到灾区。根据句意可知食物和水与动词“send”是被动关系，故应用被动语态，根据时间状语“tomorrow”可知时态为一般将来时。主语是All the food and water （所有的食物和水）是复数，用be going to构成一般将来时，be动词用are。故填Will be sent/are going to be sent.
67．If we continue down trees, birds will have nowhere to live. (cut)
【答案】cutting
【详解】句意：如果我们继续砍伐树木，鸟类将无处生存。continue doing sth.“继续做某事”，应用动名词作宾语，故填cutting。
68．They (dig) very deep in the field in order to find the treasure the other day.
【答案】dug
【详解】句意：前几天他们为了找到宝藏，在地里挖得很深。dig“挖”，根据“the other day”可知，该句是一般过去时，动词应该填过去式。故填dug。
69．More than three quarters of the population are Chinese in Singapore, so you can (simple) speak Putonghua a lot of the time.
【答案】simply
【详解】句意：在新加坡，超过四分之三的人口是华人，所以很多时候你可以只说普通话。根据“...so you can...speak Putonghua...”可知此处需使用形容词simple“简单的”的副词形式simply“仅仅、只”，修饰动词speak。故填simply。
70．There are too many (different) between us.
【答案】differences
【详解】句意：我们之间有太多不同之处。many修饰可数名词复数，different对应的名词是difference，故填differences。
71．He (invite) to speak at tomorrow’s parents’ meeting.
【答案】will be invited
【详解】句意：他被邀请在明天的家长会上发言。“he”和“invite”之间是被动关系，即他被邀请，要用被动语态“be+过去分词”，“invite”的过去分词是“invited”。又因为 “tomorrow”表明是将来的时间，所以要用一般将来时的被动语态，其结构为“will be+过去分词”。在句中“will be invited”作谓语，表示将来要发生的被动动作。故填will be invited。
72．The new computers (use) by the students the other day.
【答案】were used
【详解】句意：前几天，学生们使用了新电脑。根据“the other day”可知，句子时态为一般过去时，主语“The new computers”与空处为逻辑上的动宾关系，用被动语态，应填were used。故填were used。
73．The dirty clothes need (wash).
【答案】washing/to be washed
【详解】句意：这些脏衣服需要清洗了。“need”作为实义动词，有两种表达“需要被做”的结构：一是“need doing”，用主动形式表达被动含义；二是“need to be done”。在本句中，“The dirty clothes”和“wash”是被动关系，即衣服被洗，“washing”和“to be washed”都能表达这个意思。故填washing或to be washed。
74．We shall take the old newspaper and the empty bottles for (recycle).
【答案】recycling
【详解】句意：我们应该把旧报纸和空瓶子拿去回收。根据句子“We shall take the old newspaper and the empty bottles for... (recycle).”可知，for为介词，介词后应接名词、代词或动名词作宾语。recycle是动词，意为“回收利用”，其动名词形式为recycling，for recycling表示“用于回收”。故填recycling。
75．People should take action at once to protect our natural (resource).
【答案】resources
【详解】句意：人们应该立即采取行动保护我们的自然资源。resource“资源”，可数名词，应用复数形式，表示概数概念。故填resources。
76．Are you interested in (organize) parties
【答案】organizing
【详解】句意：你有兴趣组织聚会吗？be interested in…“对……感兴趣”，是固定搭配，后接名词或动名词，应填organizing。故填organizing。
77．It’s important to spend your time (wise).
【答案】wisely
【详解】句意：明智地利用时间很重要。根据“It’s important to spend your time...”可知，这里需要用副词来修饰动词短语“spend your time”，wise是形容词，其副词形式为wisely，表示“明智地；合理地”。故填wisely。
78．My dad used to (drive) me to school, but now I take the school bus.
【答案】drive
【详解】句意：我爸爸过去开车送我去学校，但现在我坐校车。used to do sth“过去常常做某事”，故填drive。
79．—How can I lose weight
—By (exercise) more.
【答案】exercising
【详解】句意：——我如何减肥？——通过多锻炼。by是介词，后跟动名词作宾语。故填exercising。
80．Our environment (change) for the better. It’s the result of our working together.
【答案】is changing
【详解】句意：我们的环境正在变得更好。这是我们共同努力的结果。根据“It’s the result of our working together.”可知，此处是指环境正在变得更好，应用现在进行时，其结构为be doing；主语“Our government”为第三人称单数，be动词用is；动词change的现在分词为changing。故填is changing。
81．More and more trees (plant) in that area over the next few years.
【答案】will be planted
【详解】句意：未来几年，那个地区将种植越来越多的树。主语trees和动词plant之间是被动关系，根据“over the next few years”可知，时态是一般将来时，所以空格处应用一般将来时的被动语态，结构是：will be+动词过去分词，动词plant要变成过去分词planted。故填will be planted。
82．You (punish) if you break the rules.
【答案】will be punished
【详解】句意：如果你违反规则，你将受到惩罚。句子是if引导的条件状语从句，遵循主将从现，主语You和punish之间是被动关系，故主句用一般将来时的被动语态will be done。故填will be punished。
83．I’m sorry for on your foot. (step)
【答案】stepping
【详解】句意：很抱歉踩了你的脚。step作动词时，意为“踩”，位于介词for后，应用动名词。故填stepping。
84． (reduce) the number of cars, the government has done something useful.
【答案】To reduce
【详解】句意：为了减少汽车的数量，政府做了一些有用的事情。此处应是动词不定式作目的状语，故填To reduce。
85．We should never throw letter away (care), as well as not shout in public.
【答案】carelessly
【详解】句意：我们不应该随意扔掉信件，也不应该在公共场合大喊大叫。care关心、照料，是名词和动词；carelessly粗心地、随意地，是副词。根据句意和语法可知，要用副词“随意地”修饰动词throw，作状语。故填carelessly。
86．When you enter the museum, you (take) round it by a guide. Please keep quiet.
【答案】will be taken
【详解】句意：当你进入博物馆时，你将由导游带着参观。请保持安静。根据题干可知，主语you是动作的承受者；by a guide被导游（带着参观），由此可推知，应用被动语态be+及物动词的过去分词，即be taken。同时根据题意可知，“当你进入博物馆的时候，由导游带领参观，要保持安静”是将来的动作，when引导的时间状语从句，动作在将来要遵循主将从现的原则，所以take要用一般将来时的被动语态。故填will be taken。
87．Before you leave home, remember (turn) off the lights.
【答案】to turn
【详解】句意：在你离开家之前，记得关灯。turn off“关闭”；remember to do sth记得去做某事（未做）；remember doing sth记得做过某事（已做）。根据“Before you leave home, remember … off the lights.”可知，此处指未做的事，故填to turn。
88．To be honest, you did the job very (careful). It made your boss angry.
【答案】carelessly
【详解】句意：说实话，你工作做得非常粗心。这让你的老板很生气。根据“It made your boss angry.”可知，老板生气，说明工作做得粗心，应用副词carelessly“粗心地”修饰动词did。故填carelessly。
89．The waste water from the factory (pollute) the rivers nearby recently.
【答案】has polluted
【详解】句意：最近工厂的废水污染了附近的河流。pollute“污染”，根据“recently”可知此处表示过去的动作对现在的影响，用现在完成时，主语是The waste water from the factory，助动词用has。故填has polluted。
90．We are not allowed (bring) mobile phones to school.
【答案】to bring
【详解】句意：我们不允许把手机带到学校。be allowed to do sth.被允许做某事，bring带来，动词不定式形式为to bring，故填to bring。
91．As the Internet becomes more and more important, we can’t imagine (live) without the web.
【答案】living
【详解】句意：随着互联网变得越来越重要，我们无法想象没有网络生活。imagine doing sth“想象做某事”，live“生活”，动词，此处用动名词形式。故填living。
92．After 40 years’ development in China, our country can all kinds of transports with the top class and quality. (product).
【答案】produce
【详解】句意：经过40年的发展，我国能够生产出各种具有一流水平和质量的交通工具。根据“our country can”可知，句子中的“can”是情态动词，后面需要接动词原形。根据句意，这里需要一个表示“生产”的动词，且“product”提示了需要填入其动词形式“produce”。故填produce。
93．Almost everybody knows that air pollution (harm) our health.
【答案】harms
【详解】句意：几乎每个人都知道空气污染对我们的健康有害。分析句子结构可知，“air pollution ... our health”是一个宾语从句，从句描述的是客观事实，应用一般现在时。“air pollution”是不可数名词，作主语时谓语动词用第三人称单数形式，“harm”的第三人称单数形式是“harms”，意为“危害”。故填harms。
94．The plastic bags are bad for the environment. Don’t throw them away (careful).
【答案】carelessly
【详解】句意：塑料袋对环境有害。不要随便扔掉它们。careful“小心的”，结合“The plastic bags are bad for the environment.”可知，应是不要随便丢掉塑料袋，空处修饰动词短语throw away，所以用carelessly“ 粗心地；不注意地”修饰。故填carelessly。
95． (take) showers in winter takes longer time.
【答案】Taking
【详解】句意：在冬天洗澡会花费更长时间。根据“... showers in winter takes longer time.”可知，句子缺少主语，动词不能直接作主语，需将其变为动名词形式，take的动名词形式为taking，注意句首单词首字母大写。故填Taking。
96．A talk on learning English (give) in the school hall next week.
【答案】is going to be given/will be given
【详解】句意：一场关于英语学习的讲座将在下周在学校礼堂举行。根据“next week”可知，句子描述将来发生的事情，且主语A talk与动词give之间是被动关系，需用被动语态。将来时的被动语态结构为“will be done”或“is going to be done”。故填is going to be given/will be given。
97．Mary remembered (turn) off the light when she left home. But it was on when she came back.
【答案】turning
【详解】句意：玛丽离开家时记得关灯，但回来时灯还亮着。根据 “Mary remembered...off the light when she left home. But it was on when she came back.” 可知，玛丽记得离开家时关了灯，但回来时灯是开着的。“记得做过某事”用remember doing sth.。故填turning。
98．I (try) to help you organize your show if I have time.
【答案】will try
【详解】句意：如果我有时间，我会尽力帮你组织你的演出。try“试图；努力”，句子为条件状语从句，从句用一般现在时，主句用一般将来时（will do）。故填will try。
99．This factory will fashionable bags for women next year. (product)
【答案】produce
【详解】句意：这家工厂明年将会生产女士时尚包包。助动词will后跟动词原形，作谓语动词，product是名词形式；其动词形式为produce。故填produce。
100．The patient should be (separate) from the others.
【答案】separated
【详解】句意：这个病人应该与其他人隔离开。根据“The patient should be...”可知，“patient”与“separate”是被动关系，应使用被动语态“be + 过去分词”形式；separate“分隔”的过去分词是“separated”。故填separated。
