Sandy and Millie are strong and tall．题目和参考答案——青夏教育精英家教网—

题目内容

5．Sandy and Millie are strong and tall．

分析 Sandy和Millie又高又强壮．

解答答案：strong．
根据所给首字母提示结合语境推测句意是"Sandy和Millie又高又强壮．"，根据判断设空处后面的形容词tall判断设空处缺少形容词 strong，所以答案是：strong

点评做这类题型，首先根据所给单词首字母明确句子所要考查的单词的拼写，再结合相关语法知识对单词做出形式上的变化．

练习册系列答案

16．You've heard of 3D printing from newspaper and TV programs．It can"print"in plastic，metal，nylon，and over a hundred other materials.3D printing technology has been around since the 1980s，it was not widely used until the early 2010s．The first working 3D printer was created in 1984 by Chuck Hull．
3D printers use many different types of technologies，but they all share one thing in common：they create a three-dimensional（维度的） object by building it layer（层），by continuing layer，until the whole object is completed．Imagine a baker lay down each layer one at a time until the whole cake is formed.3D printing is somewhat similar，but just a bit stricter．How can 3D printers work so well？The most important thing-a program，a 3D printer also needs to have instructions for what to print from a computer．It needs a file as well．The file which is a Computer Aided Design （CAD） paper is created with the use of a 3D modeling program．The program creates a paper that is sent to the 3D printer．Along the way，software pieces the design into hundreds，or more likely thousands of layers．The 3D printer builds up one layer at a time，from the bottom to the top，until the object is done．
3D printings can be used for making many kinds of things such as machine parts，daily life objects，even human organs（器官） using a person's own cells．
Nowadays，Marc．Dillon founds a project which deals with many world famous paintings like Leonardo da Vinci's Mona Lisa，Van Gogh's Sunflower with 3D technology．This project helps the blind people enjoy the fantastic art through touching．In order to provide a good user experience，these 3D paintings have special instruments which can tell people what they touch．

49．The first working 3D printer was created inB．
A.1980
B.1984
C.2001
D.2010
50．From Paragraph 2，we can know thatA．
A．how a 3D printer works
B．what a 3D printing is
C．questions of a 3D printer
D．uses of a 3D printer
51．According to the passage，Dcan help the blind know what they touch．
A．CAD paper
B．Machine parts．
C．The world famous paintings
D．Special instruments
52．Which of the following is true？C
A.3D printers use 3 types of technologies．
B.3D printers make printings from the top．
C.3D printers work as a baker makes a cake．
D.3D printers piece the design into a few layers．

13．orange juice/to/a little/I/like/drink/would
I would like to drink a little orange juice．

20．How manyclasses （classes，class） are there at your school？

10．

brush，twice．The boy brushes his teeth twice a day．．

17．He prefersto take（take） part in the public activities rather than stay at home alone．

14．Millions of movie fans like watching Avanda．It's really fantastic．（million）

15．I was drawing a horse when Kate _______ into the classroom．（　　）

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