Unit 4 Then and now 单元测试题 （含答案） 2025-2026学年下学期小学英语人教PEP版（2012）六年级下册
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| 名称 | Unit 4 Then and now 单元测试题 （含答案） 2025-2026学年下学期小学英语人教PEP版（2012）六年级下册 |
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中小学教育资源及组卷应用平台
Unit 4 Then and now 单元测试题 2025-2026学年
下学期小学英语人教PEP版（2012）六年级下册
一、单项选择
1．There _____ no library or gym in my school ten years ago. ( )
A．are B．was C．were
2．Before, Julie ________ quiet. Now, she ________ very active. ( )
A．is; is B．was; was C．was; is
3．Mike ______ only a car before, but now he ______ two. ( )
A．had; had B．had; has C．has; had
4．Before, he ________ ride a bike. Now he ________ it well. ( )
A．can’t; ride B．couldn’t; rode C．couldn’t; rides
5．There was no gym in our school, ______. ( )
A．too B．neither C．either
6．It took me an hour ______ do my homework yesterday. ( )
A．at B．to C．in
7．—______ did Sarah change ( )
—She had long hair before, but it's short now.
A．Why B．How C．Where
8．I _____ tea yesterday afternoon. ( )
A．drink B．drinks C．drank
9．There was no _____ in my old school. ( )
A．library B．libraries C．a library
10．There were no computers in my school _____. ( )
A．last year B．now C．next year
二、填空题
11．We (don’t / didn’t) have a gym before, and there (were / was) no computer rooms.
12．I (can’t / couldn’t) ride a bike well before.
13．Before, I was . Now I’m very active in class. (strict / quiet)
14．I (don’t / didn’t) like winter before.
15．We (don’t / didn’t) have a gym before.
三、连词成句
16．pink, I, don’t, now, like (.)
______________________
17．before was very Tom quiet (.)
____________________________________
18．like, before, I, sports, but, didn't (.)
___________________________
19．I’m, in class, now, very active (.)
___________________________
20．was, only, small, building, on, a, hill, There, one, (.)
_____________________________________________________________
四、补全对话
Sam: Hi! Dick. Do you want to see my old photos
Dick: Of course, I’d love to. Oh, ha-ha! 21
Sam: Yes, that’s five years ago. Now my hair is short.
Dick: And it’s funny. You are wearing a pink T-shirt.
Sam: Yes. 22
Dick: 23
Sam: Right! Before I was short and I couldn’t swim. But now I’m tall and strong, and I can swim well. I love swimming. 24
Dick: I like swimming too.
Sam: Great! 25
Dick: Nothing much.
Sam: Let’s go swimming together tomorrow afternoon.
Dick: Sounds great!
A．What’s your favourite sport
B．But I don’t like pink now.
C．What are you going to do tomorrow
D．We are all different now.
E．Your hair was so long.
五、阅读选择
阅读短文，选择正确答案。
Tony is a pilot. He came to his old school yesterday. He is happy because his old school is very different now. Twenty year ago, it was small. There were only two small houses. Now, there are five tall buildings. Before, there was no gym in his school. Now, there is a new one. Tony was short when he was at school. And he couldn’t ride his bike well. He often walked to school. Now he is taller and stronger than before. He likes cycling very much. He goes cycling every weekend. He loves his teachers and likes his school very much.
26．Tony was _______ twenty years ago. ( )
A．a student B．a teacher C．a singer
27．Has his school changed a lot ( )
A．No, it isn’t. B．Yes, it has. C．Yes, it is.
28．How did he often go to school before ( )
A．By bike. B．By bus. C．On foot.
29．What does he like do _______ now ( )
A．reading B．cycling C．dance
30．Now he is _______ than before. ( )
A．stronger B．shorter and stronger C．taller and stronger
六、任务型阅读
课堂上，老师正在介绍着伟大的发明。阅读短文，完成下列各题。
In ancient (古老的) times, our people were very clever and had four great inventions (发明) —papermaking, gunpowder (火药), printing and the compass.
What about now We also have lots of great inventions.
Have you used any of these inventions These inventions bring a lot of convenience to people’s life.
31．根据短文，判断句子正(T)误(F)。
(1) The people were clever in ancient times. ( )
(2) The high speed railway was one of the four great inventions of ancient times. ( )
(3) Now we can pay (支付) by phone. ( )
32．根据短文，选择正确答案。
What does the underlined word “convenience” mean ( )
A．烦恼 B．便利 C． 障碍
七、书面表达
33．书面表达。
地球是我们赖以生存的家园。但由于人们的不当行为, 地球已经满目疮痰。请你根据思维导图提示，完成以下短文，号召人们从小事做起，保护环境，保护地球。不少于5句话。
In the past, the Earth was ____________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
Let’s help the Earth together.
参考答案
1．B
【详解】句意：十年前我的学校没有图书馆和体育馆。本题考查there be句型的就近原则。ten years ago十年前，是一般过去时的标志词，library是可数名词单数，be用is的过去式was，故选B。
2．C
【详解】句意：之前，朱莉很安静。现在，她非常活跃。根据Before之前，可知句子为一般过去时态，主语Julie是第三人称单数，be动词用过去式was，排除A选项。根据句意及Now现在，可知句子为一般现在时态，主语she是第三人称单数，be动词用is，故选C。
3．B
【详解】句意：迈克以前只有一辆车，但是现在他有两辆车。本题考查动词形式，before是一般过去时的标志词，动词用have的过去式had，后面因为有now，用一般现在时，主语是第三人称单数，动词用第三人称单数形式has，故选B。
4．C
【详解】句意：以前，他不会骑自行车。现在他骑得很好。本题考查情态动词和动词的形式。根据before可知第一句是一般过去时，情态动词can用过去式could，couldn’t是could的否定形式；根据now可知第二句是一般现在时，主语he是第三人称单数，后面的动词用第三人称单数形式rides。故选C。
5．C
【详解】句意：在我们学校也没有体育馆。too也，在肯定句，neither两者都不，either也，在否定句，所以C符合句意，故选C。
6．B
【详解】句意：昨天做作业花了我一小时的时间。It takes sb some time to do sth.花费某人多长时间做某事。固定句型，故选B。
7．C
【详解】句意：—Sarah哪里改变了？—她以前长头发，但是现在是短头发。A为什么，B怎样，C哪里，根据句意，说Sarah哪方面发生了改变，应用where，故选C。
【点睛】
8．C
【详解】题干句意：昨天下午我喝茶了。yesterday afternoon是一般过去时的时间标志词，动词drink应当用其过去式drank，故选C。
9．A
【详解】句意：我以前的学校没有图书馆。句子是there be句型的否定句，no = not a，was是单数，该空应当填library，故选A。
10．A
【详解】句意：去年在我的学校没有电脑。A去年，B现在，C明年。因为系动词用的是过去式were，故应该表示过去的时间去年。故选A。
11． didn’t were
【详解】句意：我们以前没有体育馆，也没有电脑室。本题考查时态辨析和there be句式。根据before可知句子是一般过去时，助动词用didn’t；第二句是there be句式，computer rooms是复数，be用词用are的过去式were。故答案为didn’t；were。
12．couldn’t
【详解】句意：以前我骑不好自行车。can't不能，原形；couldn't不能，过去式；根据before可知该句是一般过去时，故谓语动词用过去式，故答案为couldn't。
13．quiet
【详解】句意：以前，我很_____。现在我在课上很活跃。strict严厉的，quiet安静的，根据句意可知quiet符合，故答案为quiet。
14．didn't
【详解】句意：以前我不喜欢冬天。根据before，可知句子是一般过去时，助动词用didn't，故答案为didn't。
15．didn’t
【详解】句意：我们以前没有体育馆。本题考试时态辨析和助动词的形式。根据句意可知该句是一般过去时，且句子是陈述句的否定形式，助动词应用didn’t。故答案为didn’t。
16．I don’t like pink now.
【详解】 本题考查句子结构。pink粉色，I我，don’t不，now现在，like喜欢。根据所给的句号和单词，可知句子是陈述句否定形式，根据所给词义可以连成句子：我现在不喜欢粉红色。故答案为I don’t like pink now.
17．Tom was very quiet before.
【详解】before以前，was是，very十分，Tom汤姆，quiet安静的，根据所给的句号，可知句子是一个陈述句，根据所给词义可以连成句子：汤姆以前很安静。故答案为Tom was very quiet before.
18．But I didn't like sports before.
【详解】like喜欢，before以前，I 我，sports运动，but但是，didn't助动词，根据所给句号可知句子是陈述句，根据所给单词词义可以连成句子：但是我以前不喜欢运动。故答案为But I didn't like sports before.
【点睛】
19．I’m very active in class now.
【详解】本题考查句子结构。I’m我是，in class在课堂上，now现在，very active非常活跃，根据所给单词和句号，可知句子是一个陈述句，根据词义连成句子：我现在在课堂上非常活跃。故答案为I’m very active in class now.
20．There was only one small building on a hill.
【详解】本题考查句子结构。was是，only只有，small小的，building建筑物，on在……的上面，a冠词，There这，one一个，根据所给句号，可知句子是陈述句，根据词义可以连成句子：在山上只有一个小建筑物。故答案为There was only one small building on a hill.
21．E 22．B 23．D 24．A 25．C
【导语】本文讲述了Sam和Dick两个人看旧照片讨论今夕对比，并相约明天下午一起去游泳。
21．根据下一句“是的，五年前的时候了。现在我的头发是短的。”可知上一句也在讨论头发问题，E选项“你的头发如此之长。”符合语境，故选E。
22．根据上一句“你穿着一件粉色T恤。”可知下一句应该是对衣服颜色或者衣服类型进行讨论，B选项“但是我现在不喜欢粉色。”符合语境，故选B。
23．根据下一句“是的！之前我矮并且不会游泳。但是现在我高且壮，而且游泳游得非常好。我喜欢游泳。”可知上一句总结之前和现在的不同，D选项“我们现在都不同了。”符合语境，故选D。
24．根据下一句“我也喜欢游泳。”可知上一句询问你喜欢什么运动，A选项“你最喜欢的运动是什么？”符合语境，故选A。
25．根据后面两句“没什么事，明天下午一起去游泳。”可知前面询问明天是否有安排，C选项“明天你打算去做什么？”符合语境，故选C。
26．A 27．B 28．C 29．B 30．C
【导语】本文讲了托尼和学校的今昔对比。
26．句意：托尼二十年前是________。A学生，B老师，C歌手，根据“He came to his old school yesterday. He is happy because his old school is very different now. Twenty year ago, it was small.”，可知托尼二十年前是学生，故选A。
27．句意：他的学校改变了很多吗？根据“He is happy because his old school is very different now.”，可知他的学校改变了很多，答语为肯定回答，has提问用has回答，故选B。
28．句意：他以前经常怎么去上学？A骑自行车。B坐公共汽车。C步行。根据“He often walked to school.”，可知他以前经常步行去上学，故选C。
29．句意：他现在喜欢______。A阅读，B骑自行车，C跳舞，根据“He likes cycling very much.”，可知他喜欢骑自行车，故选B。
30．句意：现在他比以前_______。A更强壮的，B又矮又强壮，C又高又强壮，根据“Now he is taller and stronger than before.”，可知现在他比以前又高又强壮，故选C。
31． T F T 32．B
【导语】本文介绍了中国古代的四大发明以及现代的一些伟大发明，如高铁、电子支付等。
31．(1) 句意：古代的人们很聪明。根据“In ancient times, our people were very clever...”，可知题干与短文相符，故答案为T。
(2) 句意：高铁是古代四大发明之一。根据“four great inventions—papermaking, gunpowder, printing and the compass”，可知四大发明不包括高铁，题干与短文不符，故答案为F。
(3) 句意：现在我们可以用手机支付。根据图片和“electronic payment”的提示，可知现在可以用手机支付，题干与短文相符，故答案为T。
32．句意：划线单词convenience是什么意思？根据上下文“These inventions bring a lot of convenience to people’s life.”，这些发明给人们的生活带来了很多便利，故答案为B。
33．参考范文：
In the past, the Earth was a beautiful place. But now the Earth is very dirty. Sometimes people throw rubbish into rivers and oceans. Sometimes people cut down too many trees. Smoke from cars and factories makes the air dirty. The Earth gets sick. We should plant more trees and stop cutting them down. We shouldn’t drive so much. We should stop using plastic bags and throwing rubbish into rivers and oceans. Let’s help the Earth together.
【详解】1.题干解读：该题目要求根据思维导图提示描述之前的地球和现在地球的区别以及为什么地球会生病，怎样保护地球等，时态用一般现在时和一般过去时描述，用第一人称描述，注意条理清晰，句子完整，要符合题干要求的句子数量。
2.参考词汇和句型：
参考单词：beautiful漂亮的，dirty脏的，rubbish垃圾，cut down砍倒，plastic bags塑料袋
参考句型：Sometimes people…；Smoke from… makes…；We should…；We shouldn’t…
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Unit 4 Then and now 单元测试题 2025-2026学年
下学期小学英语人教PEP版（2012）六年级下册
一、单项选择
1．There _____ no library or gym in my school ten years ago. ( )
A．are B．was C．were
2．Before, Julie ________ quiet. Now, she ________ very active. ( )
A．is; is B．was; was C．was; is
3．Mike ______ only a car before, but now he ______ two. ( )
A．had; had B．had; has C．has; had
4．Before, he ________ ride a bike. Now he ________ it well. ( )
A．can’t; ride B．couldn’t; rode C．couldn’t; rides
5．There was no gym in our school, ______. ( )
A．too B．neither C．either
6．It took me an hour ______ do my homework yesterday. ( )
A．at B．to C．in
7．—______ did Sarah change ( )
—She had long hair before, but it's short now.
A．Why B．How C．Where
8．I _____ tea yesterday afternoon. ( )
A．drink B．drinks C．drank
9．There was no _____ in my old school. ( )
A．library B．libraries C．a library
10．There were no computers in my school _____. ( )
A．last year B．now C．next year
二、填空题
11．We (don’t / didn’t) have a gym before, and there (were / was) no computer rooms.
12．I (can’t / couldn’t) ride a bike well before.
13．Before, I was . Now I’m very active in class. (strict / quiet)
14．I (don’t / didn’t) like winter before.
15．We (don’t / didn’t) have a gym before.
三、连词成句
16．pink, I, don’t, now, like (.)
______________________
17．before was very Tom quiet (.)
____________________________________
18．like, before, I, sports, but, didn't (.)
___________________________
19．I’m, in class, now, very active (.)
___________________________
20．was, only, small, building, on, a, hill, There, one, (.)
_____________________________________________________________
四、补全对话
Sam: Hi! Dick. Do you want to see my old photos
Dick: Of course, I’d love to. Oh, ha-ha! 21
Sam: Yes, that’s five years ago. Now my hair is short.
Dick: And it’s funny. You are wearing a pink T-shirt.
Sam: Yes. 22
Dick: 23
Sam: Right! Before I was short and I couldn’t swim. But now I’m tall and strong, and I can swim well. I love swimming. 24
Dick: I like swimming too.
Sam: Great! 25
Dick: Nothing much.
Sam: Let’s go swimming together tomorrow afternoon.
Dick: Sounds great!
A．What’s your favourite sport
B．But I don’t like pink now.
C．What are you going to do tomorrow
D．We are all different now.
E．Your hair was so long.
五、阅读选择
阅读短文，选择正确答案。
Tony is a pilot. He came to his old school yesterday. He is happy because his old school is very different now. Twenty year ago, it was small. There were only two small houses. Now, there are five tall buildings. Before, there was no gym in his school. Now, there is a new one. Tony was short when he was at school. And he couldn’t ride his bike well. He often walked to school. Now he is taller and stronger than before. He likes cycling very much. He goes cycling every weekend. He loves his teachers and likes his school very much.
26．Tony was _______ twenty years ago. ( )
A．a student B．a teacher C．a singer
27．Has his school changed a lot ( )
A．No, it isn’t. B．Yes, it has. C．Yes, it is.
28．How did he often go to school before ( )
A．By bike. B．By bus. C．On foot.
29．What does he like do _______ now ( )
A．reading B．cycling C．dance
30．Now he is _______ than before. ( )
A．stronger B．shorter and stronger C．taller and stronger
六、任务型阅读
课堂上，老师正在介绍着伟大的发明。阅读短文，完成下列各题。
In ancient (古老的) times, our people were very clever and had four great inventions (发明) —papermaking, gunpowder (火药), printing and the compass.
What about now We also have lots of great inventions.
Have you used any of these inventions These inventions bring a lot of convenience to people’s life.
31．根据短文，判断句子正(T)误(F)。
(1) The people were clever in ancient times. ( )
(2) The high speed railway was one of the four great inventions of ancient times. ( )
(3) Now we can pay (支付) by phone. ( )
32．根据短文，选择正确答案。
What does the underlined word “convenience” mean ( )
A．烦恼 B．便利 C． 障碍
七、书面表达
33．书面表达。
地球是我们赖以生存的家园。但由于人们的不当行为, 地球已经满目疮痰。请你根据思维导图提示，完成以下短文，号召人们从小事做起，保护环境，保护地球。不少于5句话。
In the past, the Earth was ____________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
Let’s help the Earth together.
参考答案
1．B
【详解】句意：十年前我的学校没有图书馆和体育馆。本题考查there be句型的就近原则。ten years ago十年前，是一般过去时的标志词，library是可数名词单数，be用is的过去式was，故选B。
2．C
【详解】句意：之前，朱莉很安静。现在，她非常活跃。根据Before之前，可知句子为一般过去时态，主语Julie是第三人称单数，be动词用过去式was，排除A选项。根据句意及Now现在，可知句子为一般现在时态，主语she是第三人称单数，be动词用is，故选C。
3．B
【详解】句意：迈克以前只有一辆车，但是现在他有两辆车。本题考查动词形式，before是一般过去时的标志词，动词用have的过去式had，后面因为有now，用一般现在时，主语是第三人称单数，动词用第三人称单数形式has，故选B。
4．C
【详解】句意：以前，他不会骑自行车。现在他骑得很好。本题考查情态动词和动词的形式。根据before可知第一句是一般过去时，情态动词can用过去式could，couldn’t是could的否定形式；根据now可知第二句是一般现在时，主语he是第三人称单数，后面的动词用第三人称单数形式rides。故选C。
5．C
【详解】句意：在我们学校也没有体育馆。too也，在肯定句，neither两者都不，either也，在否定句，所以C符合句意，故选C。
6．B
【详解】句意：昨天做作业花了我一小时的时间。It takes sb some time to do sth.花费某人多长时间做某事。固定句型，故选B。
7．C
【详解】句意：—Sarah哪里改变了？—她以前长头发，但是现在是短头发。A为什么，B怎样，C哪里，根据句意，说Sarah哪方面发生了改变，应用where，故选C。
【点睛】
8．C
【详解】题干句意：昨天下午我喝茶了。yesterday afternoon是一般过去时的时间标志词，动词drink应当用其过去式drank，故选C。
9．A
【详解】句意：我以前的学校没有图书馆。句子是there be句型的否定句，no = not a，was是单数，该空应当填library，故选A。
10．A
【详解】句意：去年在我的学校没有电脑。A去年，B现在，C明年。因为系动词用的是过去式were，故应该表示过去的时间去年。故选A。
11． didn’t were
【详解】句意：我们以前没有体育馆，也没有电脑室。本题考查时态辨析和there be句式。根据before可知句子是一般过去时，助动词用didn’t；第二句是there be句式，computer rooms是复数，be用词用are的过去式were。故答案为didn’t；were。
12．couldn’t
【详解】句意：以前我骑不好自行车。can't不能，原形；couldn't不能，过去式；根据before可知该句是一般过去时，故谓语动词用过去式，故答案为couldn't。
13．quiet
【详解】句意：以前，我很_____。现在我在课上很活跃。strict严厉的，quiet安静的，根据句意可知quiet符合，故答案为quiet。
14．didn't
【详解】句意：以前我不喜欢冬天。根据before，可知句子是一般过去时，助动词用didn't，故答案为didn't。
15．didn’t
【详解】句意：我们以前没有体育馆。本题考试时态辨析和助动词的形式。根据句意可知该句是一般过去时，且句子是陈述句的否定形式，助动词应用didn’t。故答案为didn’t。
16．I don’t like pink now.
【详解】 本题考查句子结构。pink粉色，I我，don’t不，now现在，like喜欢。根据所给的句号和单词，可知句子是陈述句否定形式，根据所给词义可以连成句子：我现在不喜欢粉红色。故答案为I don’t like pink now.
17．Tom was very quiet before.
【详解】before以前，was是，very十分，Tom汤姆，quiet安静的，根据所给的句号，可知句子是一个陈述句，根据所给词义可以连成句子：汤姆以前很安静。故答案为Tom was very quiet before.
18．But I didn't like sports before.
【详解】like喜欢，before以前，I 我，sports运动，but但是，didn't助动词，根据所给句号可知句子是陈述句，根据所给单词词义可以连成句子：但是我以前不喜欢运动。故答案为But I didn't like sports before.
【点睛】
19．I’m very active in class now.
【详解】本题考查句子结构。I’m我是，in class在课堂上，now现在，very active非常活跃，根据所给单词和句号，可知句子是一个陈述句，根据词义连成句子：我现在在课堂上非常活跃。故答案为I’m very active in class now.
20．There was only one small building on a hill.
【详解】本题考查句子结构。was是，only只有，small小的，building建筑物，on在……的上面，a冠词，There这，one一个，根据所给句号，可知句子是陈述句，根据词义可以连成句子：在山上只有一个小建筑物。故答案为There was only one small building on a hill.
21．E 22．B 23．D 24．A 25．C
【导语】本文讲述了Sam和Dick两个人看旧照片讨论今夕对比，并相约明天下午一起去游泳。
21．根据下一句“是的，五年前的时候了。现在我的头发是短的。”可知上一句也在讨论头发问题，E选项“你的头发如此之长。”符合语境，故选E。
22．根据上一句“你穿着一件粉色T恤。”可知下一句应该是对衣服颜色或者衣服类型进行讨论，B选项“但是我现在不喜欢粉色。”符合语境，故选B。
23．根据下一句“是的！之前我矮并且不会游泳。但是现在我高且壮，而且游泳游得非常好。我喜欢游泳。”可知上一句总结之前和现在的不同，D选项“我们现在都不同了。”符合语境，故选D。
24．根据下一句“我也喜欢游泳。”可知上一句询问你喜欢什么运动，A选项“你最喜欢的运动是什么？”符合语境，故选A。
25．根据后面两句“没什么事，明天下午一起去游泳。”可知前面询问明天是否有安排，C选项“明天你打算去做什么？”符合语境，故选C。
26．A 27．B 28．C 29．B 30．C
【导语】本文讲了托尼和学校的今昔对比。
26．句意：托尼二十年前是________。A学生，B老师，C歌手，根据“He came to his old school yesterday. He is happy because his old school is very different now. Twenty year ago, it was small.”，可知托尼二十年前是学生，故选A。
27．句意：他的学校改变了很多吗？根据“He is happy because his old school is very different now.”，可知他的学校改变了很多，答语为肯定回答，has提问用has回答，故选B。
28．句意：他以前经常怎么去上学？A骑自行车。B坐公共汽车。C步行。根据“He often walked to school.”，可知他以前经常步行去上学，故选C。
29．句意：他现在喜欢______。A阅读，B骑自行车，C跳舞，根据“He likes cycling very much.”，可知他喜欢骑自行车，故选B。
30．句意：现在他比以前_______。A更强壮的，B又矮又强壮，C又高又强壮，根据“Now he is taller and stronger than before.”，可知现在他比以前又高又强壮，故选C。
31． T F T 32．B
【导语】本文介绍了中国古代的四大发明以及现代的一些伟大发明，如高铁、电子支付等。
31．(1) 句意：古代的人们很聪明。根据“In ancient times, our people were very clever...”，可知题干与短文相符，故答案为T。
(2) 句意：高铁是古代四大发明之一。根据“four great inventions—papermaking, gunpowder, printing and the compass”，可知四大发明不包括高铁，题干与短文不符，故答案为F。
(3) 句意：现在我们可以用手机支付。根据图片和“electronic payment”的提示，可知现在可以用手机支付，题干与短文相符，故答案为T。
32．句意：划线单词convenience是什么意思？根据上下文“These inventions bring a lot of convenience to people’s life.”，这些发明给人们的生活带来了很多便利，故答案为B。
33．参考范文：
In the past, the Earth was a beautiful place. But now the Earth is very dirty. Sometimes people throw rubbish into rivers and oceans. Sometimes people cut down too many trees. Smoke from cars and factories makes the air dirty. The Earth gets sick. We should plant more trees and stop cutting them down. We shouldn’t drive so much. We should stop using plastic bags and throwing rubbish into rivers and oceans. Let’s help the Earth together.
【详解】1.题干解读：该题目要求根据思维导图提示描述之前的地球和现在地球的区别以及为什么地球会生病，怎样保护地球等，时态用一般现在时和一般过去时描述，用第一人称描述，注意条理清晰，句子完整，要符合题干要求的句子数量。
2.参考词汇和句型：
参考单词：beautiful漂亮的，dirty脏的，rubbish垃圾，cut down砍倒，plastic bags塑料袋
参考句型：Sometimes people…；Smoke from… makes…；We should…；We shouldn’t…
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