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3 语法专练( 2 月 25 日讲解 ) 1. Paul doesn ’ t have to be made ____. He always works hard. A. learn B. to learn C. learned D. learning 2. The boy wanted to ride his bicycle in the street, but his mother told him ____. A. not to B. not to do C. not do it D. do not to 3.I would love ____ to the party last night but I had to work extra hours to finish a report. A. to go B. to have gone C. going D. having gone 4.Such books are not worthy _____ at all. A. of being read B. being read C. reading D. to read 5.It is said that plastics can be used to ____ many things. Now people are used to ____ plastics products. A. make; using B. making; using C. making; use D. make; use 6. — The light in the office is still on. --- Oh, I forgot ______. A. turning it off B. turn it off C. to turn it off D. having turned it off 7.The squirrel was lucky that it just missed __________. A. catching B. to be caught C. being caught D. to catch 8.Children, when ____ by their parents, are allowed to enter the stadium. A. to be accompanied B. to accompany C. accompanying D. accompanied 9.---What do you think of the school? ----It is a very good _____. A. school to study in B. school for children to study C. studying school D. school to study 10.While we ’ re developing agriculture and industry, we must prevent the earth _____. A. from polluting B. polluted C. polluting D. being polluted 11.Do you mind ___ alone at home? A. Jane leaving B. Jane having left C. Jane ’ s being left D. Jane to be left 12.The boy pretended ____ when his mother entered. A. reading B. to read C. to be reading D. being read 13.Charles Babbage is generally considered ____the first computer. A. to invent B. inventing C. to have invented D. having invented 14.I ’ ve worked with children before, so I know what ______ in my new job. A. Expected B. to expect C. to be expecting D. expects 15.It rained heavily, __ severe flooding in the country. A. causing B. to cause C. caused D. having caused 16.______ to put on a performance, Miss Green couldn ’ t refuse very well. A. Being asked B. Asked C. Ask D. To be asked 17.______ ourselves from the physical and mental tensions, we each need deep thought and inner quietness. A. Having freed B. freeing C. Freed D. To free 18.There's a note pinned to the door __ when the shop will open again. A. saying B. said C. says D. having said 19.It is a standard practice for a company like this one ______ a security officer. A. employed B. being employed C. to employ D. employs 20.the manager was satisfied to see many new products ______ after great effort. A. having developed B. to develop C. develop D. developed 21.Sit down, Emma. You will only make yourself more tired,______ on you feet. A. to keep B. keeping C. having kept D. to have kept 22.Recently a survey _______ prices of the same goods in two different supermarkets has caused heated debate among citizens. A . compared B . comparing C . compares D . being compared 23.Tom asked the candy makers if they could make the chocolate easier _____ into small pieces. A. break B. breaking C. broken D. to break 24.This is the only way we can imagine ______ the overuse of water in students' bathrooms. A. reducing B. to reduce C. reduced D. reduce 25.The traffic rule says young children under the age of four and ______ less than 40 pounds must be in a child safety seat. A. being weighed B. to weigh C. weighed D. weighing
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【单选题】直流稳压电源中滤波电路的作用是 ( )
A.
将交流变为直流
B.
将高频变为低频
C.
交、直流混合量中的交流成分滤掉
【多选题】针对该变换矩阵 说法正确的是()
A.
这是一个旋转和平移的复合变换矩阵
B.
旋转变换是使图形绕原点逆时针旋转30°
C.
平移变换是使图形在X 正方向平移5
D.
先旋转后平移与先平移后旋转其结果是一样的
E.
先旋转后平移与先平移后旋转其结果是不一样的
【单选题】以下关于金属烤瓷冠的描述中错误的是
A.
瓷层越厚越好
B.
镍铬合金基底冠较金合金强度好
C.
避免多次烧结
D.
体瓷要在真空中烧结
E.
上釉在空气中完成
【单选题】直流稳压电源中滤波电路的作用是 ( )
A.
将交流变为直流
B.
将高频变为低频
C.
将交、直流混合量中的交流成分滤掉
【判断题】已知A是矩阵,则reshape(A, [], 1) 的结果和A(:)的结果一样。
A.
正确
B.
错误
【简答题】构成包括平面构成、色彩构成和 。
【简答题】编程题: 在Python的console端口输入命令,并把命令和结果复制到答案处。(注意:不要把python代码直接粘贴,会导致显示不完整。正确的做法是:在python中,复制代码;在答案区,右键选择粘贴为纯文本。这样才能完整显示代码和结果。) 1、构造一个3行4列的全1矩阵。 2、返回该矩阵的维度,大小,数据类型。 3、构造一个5维单位矩阵 4、构造一个1行4列的全0矩阵。
【判断题】A和 B都是5*5维的矩阵,A/B 和 A\B的结果是一样的
A.
正确
B.
错误
【单选题】以下关于金属烤瓷冠的描述中错误的是
A.
瓷层越厚越好
B.
避免多次烧结
C.
体瓷要在真空中烧结
D.
上釉在空气中完成
【判断题】三大构成包括平面构成、立体构成和色彩构成。
A.
正确
B.
错误
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