()19. Lucy showed Grandma to use the new washing machine.

A.how
B.what
C.when
D.why

19. A

【分析】本题考查“疑问词+不定式”的语法结构，需结合句子语境和选项语义分析：句子表达“露西给奶奶展示使用新洗衣机的方式”，需要选择表“方式”的疑问词，再逐一排除不符合的选项。
【解析】1. 固定结构“show sb. how to do sth.”意为“给某人展示如何做某事”，其中how表方式，契合本题“教使用洗衣机的方法”的语境；2. 选项B的what，“what to do”本身已包含宾语，无法再接“to use...”，语法错误；3. 选项C的when表时间、D的why表原因，均不符合句子要表达的“使用方式”的语义，因此排除B、C、D，选A。
【答案】A
【知识点】疑问词+不定式；动词show的搭配
【点评】本题为英语基础语法题，考查“疑问词+不定式”的固定用法，需结合语境辨析疑问词语义，难度较低。
【难度系数】0.6

()20. — will Mr Brown leave for Paris?
—In five days.

A.How often
B.How long
C.How soon
D.How far

20. C

【分析】首先观察答语“In five days”（五天后），这是表示将来动作发生的时间间隔，需匹配对应的疑问词组。回忆各选项用法：A.How often询问动作频率，答语为once a week等频率表述；B.How long询问时间长度或物体长度，答语多为for+时间段；C.How soon询问将来某事发生的时间，答语常用in+时间段；D.How far询问距离，答语为具体路程。结合答语可确定答案。
【解析】本题考查疑问词组辨析。答语“In five days”用于回答“将来动作多久后发生”，对应疑问词组How soon。逐一分析选项：A.How often问频率，不符合答语类型；B.How long问时长，答语需搭配for+时间段，不符合；C.How soon问将来时间间隔，答语常用in+时间段，符合题意；D.How far问距离，与答语无关。因此选C。
【答案】C
【知识点】疑问词组辨析；特殊疑问句
【点评】本题为英语基础考点题，需准确掌握常见疑问词组的提问对象及对应答语类型，结合答语即可快速解题，属于易得分题。
【难度系数】0.7

完形填空。
Life in the future is one of the topics that we often talk about. I think life in the future will be more wonderful and easier.
First, people will have better 1. In the future, kids won't have to go to school because they can study at home through online teaching. The online teaching will be free, 2 every kid will have a chance to study.
Second, people's health will 3. New medicine will help people live a healthier life. So people will live 4. They will live to be 150 years old.
Third, people will not 5 about the housing problem. People will build 6 under the sea. There will also be many flying houses. They won't 7 from the sky, so they will be safe for people to live in. Some people will even live on other planets.
Fourth, no one will be hungry all over the world. People will 8 a lot of new kinds of crops (庄稼). There will be enough food for everyone.
Fifth, robots will do all the 9 jobs. For example, they will put out the terrible fire instead of firemen. They will take astronauts' (航天员) place to go to the 10 station. They will also work as scientists to explore the deep sea.
What do you think the life will be like in the future?
()1. A. sky B. apartment C. education D. environment
()2. A. for B. but C. or D. so
()3. A. break B. improve C. stop D. happen
()4. A. longer B. easier C. shorter D. harder
()5. A. talk B. worry C. think D. decide
()6. A. houses B. bridges C. libraries D. machines
()7. A. feel like B. care about C. fall down D. put out
()8. A. grow B. expect C. stand D. buy
()9. A. funny B. relaxing C. dangerous D. interesting
()10. A. police B. space C. fire D. bus

1. C 2. D 3. B 4. A 5. B 6. A 7. C 8. A 9. C 10. B

【分析】做完形填空需先通读全文把握主旨（本文围绕未来生活展开），再结合上下文语境、词义辨析、固定搭配逐一分析每个空：第1空根据后文“孩子不用上学、在线学习”判断是教育相关；第2空根据前后句因果关系选连词；第3空结合“健康生活”选动词；第4空结合“活到150岁”选形容词；第5空用固定搭配worry about；第6空结合“住房问题”选名词；第7空结合“飞行房子”选短语；第8空结合“庄稼”选动词；第9空结合“代替消防员灭火”选形容词；第10空用固定搭配space station。
【解析】1. 由后文“kids won't have to go to school...study at home through online teaching”可知，此处讲的是教育，故选C。2. 前半句“在线教学免费”与后半句“每个孩子都有学习机会”为因果关系，so表结果，故选D。3. 后文“live a healthier life”说明人们的健康状况改善，improve意为“改善”，故选B。4. 由后文“live to be 150 years old”可知，人们会活得更长，longer符合语境，故选A。5. 固定搭配worry about意为“担心”，此处指不用担心住房问题，故选B。6. 前文提及“住房问题”，故此处指建房子，houses符合，故选A。7. 飞行房子不会从天上掉下来，fall down意为“掉落”，符合语境，故选C。8. grow crops为固定搭配，意为“种庄稼”，故选A。9. 后文提到机器人代替消防员灭火，说明做的是危险工作，dangerous符合，故选C。10. space station为固定搭配，意为“空间站”，故选B。
【答案】1.C 2.D 3.B 4.A 5.B 6.A 7.C 8.A 9.C 10.B
【知识点】完形填空解题技巧、词义辨析、固定搭配
【点评】本文围绕未来生活展开，考查学生对上下文逻辑、词汇词义及固定搭配的掌握，题材贴近学生认知，难度适中，需结合语境逐一分析选项。
【难度系数】0.6