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二、完形填空
阅读短文，从每小题的四个选项中，选出一个能填入文中相应空白处的最佳答案。
3D printing, also called additive manu-facturing, is 1 amazing technology that turns digital 3D models into real and solid objects. Unlike traditional printers that print on paper, 3D printers build things 2 layer by layer using materials like plastic, metal, or even food.
The process is simple. First, you cre-ate a 3D design on a computer. Then, spe-cial software “slices” the design into thin horizontal layers. The 3D printer follows these 3, melting plastic and squeezing it out through a small nozzle, just like 4 icing from a bag. It builds each layer on top of the last 5 the whole object is ready.
3D printing started in the 1980s. At first, it was expensive and only 6 in fac-tories. But today, it’s affordable for schools and homes. It has many 7. In hospi-tals, custom body parts like teeth or bones are printed for patients. In schools, students 8 toys, models and science projects. Engineers use it to make car and plane parts, 9 artists create unique sculptures.
3D printing is changing how we make things. It’s fun, creative and useful. Maybe one day, you’ll design and 10 your own inventions!
1. A. a B. an
C. the D. /
2. A. slowly B. quickly
C. badly D. quietly
3. A. plans B. rules
C. instructions D. problems
4. A. push B. pushing
C. to push D. pushed
5. A. until B. after
C. because D. if
6. A. use B. used
C. is used D. using
7. A. skills B. hobbies
C. uses D. stories
8. A. print B. sell
C. fix D. collect
9. A. or B. so
C. and D. but
10. A. borrow B. print
C. share D. stop
阅读短文，从每小题的四个选项中，选出一个能填入文中相应空白处的最佳答案。
3D printing, also called additive manu-facturing, is 1 amazing technology that turns digital 3D models into real and solid objects. Unlike traditional printers that print on paper, 3D printers build things 2 layer by layer using materials like plastic, metal, or even food.
The process is simple. First, you cre-ate a 3D design on a computer. Then, spe-cial software “slices” the design into thin horizontal layers. The 3D printer follows these 3, melting plastic and squeezing it out through a small nozzle, just like 4 icing from a bag. It builds each layer on top of the last 5 the whole object is ready.
3D printing started in the 1980s. At first, it was expensive and only 6 in fac-tories. But today, it’s affordable for schools and homes. It has many 7. In hospi-tals, custom body parts like teeth or bones are printed for patients. In schools, students 8 toys, models and science projects. Engineers use it to make car and plane parts, 9 artists create unique sculptures.
3D printing is changing how we make things. It’s fun, creative and useful. Maybe one day, you’ll design and 10 your own inventions!
1. A. a B. an
C. the D. /
2. A. slowly B. quickly
C. badly D. quietly
3. A. plans B. rules
C. instructions D. problems
4. A. push B. pushing
C. to push D. pushed
5. A. until B. after
C. because D. if
6. A. use B. used
C. is used D. using
7. A. skills B. hobbies
C. uses D. stories
8. A. print B. sell
C. fix D. collect
9. A. or B. so
C. and D. but
10. A. borrow B. print
C. share D. stop
答案
1. B 2. A 3. C 4. B 5. A 6. B 7. C 8. A 9. C 10. B
解析
【分析】
做完形填空需先通读全文把握主旨（本文介绍3D打印的定义、流程、发展及用途），再结合语境、语法规则、词汇搭配逐一分析每个空：1. 冠词需依据单词发音判断；2. 副词要贴合3D打印机的操作特点；3. 名词需匹配打印机的操作依据；4. like作为介词后接动名词；5. 连词需体现时间逻辑；6. 需判断被动语态结构；7. 名词要对应后文的用途举例；8. 动词要符合学生的行为；9. 连词需体现并列关系；10. 动词要呼应3D打印的功能。
【解析】
1. 考查不定冠词，amazing以元音音素/ə/开头，泛指“一项技术”，用an，选B；
2. 考查副词词义，3D打印机是逐层缓慢建造，slowly符合语境，选A；
3. 考查名词词义，打印机遵循软件的指令，instructions（指令）符合，选C；
4. 考查非谓语动词，like是介词，后接动名词作宾语，pushing符合，选B；
5. 考查连词，此处表“直到整个物体完成”，until符合逻辑，选A；
6. 考查一般过去时的被动语态，it指代3D打印，与use是被动关系，结构为was+过去分词，used符合，选B；
7. 考查名词词义，后文列举医院、学校等的用途，uses（用途）符合，选C；
8. 考查动词词义，学生用3D打印技术打印玩具等，print符合，选A；
9. 考查连词，此处并列工程师和艺术家的用途，and表并列，选C；
10. 考查动词词义，呼应3D打印功能，设计并打印自己的发明，print符合，选B。
【答案】
1.B 2.A 3.C 4.B 5.A 6.B 7.C 8.A 9.C 10.B
【知识点】
冠词用法、词义辨析、非谓语动词
【点评】
本文为3D打印的科普类完形填空，侧重考查基础语法和词汇词义辨析，需结合上下文语境解题，难度适中。
【难度系数】
0.6
做完形填空需先通读全文把握主旨（本文介绍3D打印的定义、流程、发展及用途），再结合语境、语法规则、词汇搭配逐一分析每个空：1. 冠词需依据单词发音判断；2. 副词要贴合3D打印机的操作特点；3. 名词需匹配打印机的操作依据；4. like作为介词后接动名词；5. 连词需体现时间逻辑；6. 需判断被动语态结构；7. 名词要对应后文的用途举例；8. 动词要符合学生的行为；9. 连词需体现并列关系；10. 动词要呼应3D打印的功能。
【解析】
1. 考查不定冠词，amazing以元音音素/ə/开头，泛指“一项技术”，用an，选B；
2. 考查副词词义，3D打印机是逐层缓慢建造，slowly符合语境，选A；
3. 考查名词词义，打印机遵循软件的指令，instructions（指令）符合，选C；
4. 考查非谓语动词，like是介词，后接动名词作宾语，pushing符合，选B；
5. 考查连词，此处表“直到整个物体完成”，until符合逻辑，选A；
6. 考查一般过去时的被动语态，it指代3D打印，与use是被动关系，结构为was+过去分词，used符合，选B；
7. 考查名词词义，后文列举医院、学校等的用途，uses（用途）符合，选C；
8. 考查动词词义，学生用3D打印技术打印玩具等，print符合，选A；
9. 考查连词，此处并列工程师和艺术家的用途，and表并列，选C；
10. 考查动词词义，呼应3D打印功能，设计并打印自己的发明，print符合，选B。
【答案】
1.B 2.A 3.C 4.B 5.A 6.B 7.C 8.A 9.C 10.B
【知识点】
冠词用法、词义辨析、非谓语动词
【点评】
本文为3D打印的科普类完形填空，侧重考查基础语法和词汇词义辨析，需结合上下文语境解题，难度适中。
【难度系数】
0.6
