[单项选择]"This invention is so great." "______."
A. So is it
B. So it is
C. Nor is mine
D. Nor is it

[单项选择]"This invention is so great." " ______."
A. So is it
B. So it is
C. Nor is mine
D. Nor is it

[单项选择]An invention of an Italian professor
A. gave later inventors the idea of moving air around in diving devices.
B. can "clean" the air.
C. was used to remove moisture.
D. was nothing but a plan.

[单项选择]What is Professor Thring's invention
A. A kind of machine which miners ride on.
B. A machine to supply fresh air to tunnels.
C. A digging machine operated at a distance.
D. A form of metal protective clothing.

[单项选择]The invention of irrigation is meaningful because it could help to

[单项选择]What invention incorporated the principles of light and radio radiation
A. satellite communication
B. X-ray
C. the laser beam
D. continuous wave

[单项选择]The invention of electricity made great contribution to civilization ______ which subsequently there are few findings comparable until now.
A. to
B. in
C. for
D. from

[单项选择]It is not a hate invention.
A. 这是一项新发明。
B. 这是一项迟到的发明。
C. 这不是一项新发明。
D. 这不是一项迟到的发明。

[单项选择]According to Monsanto, the invention of Terminator will NOT ______.
A. stop illegal replanting of seeds in the developing countries
B. protect their intellectual-property fights
C. biologically carry out the agreements with the farmers
D. make all plants sterilized

[单项选择]The successful completion of the invention is the result of the cooperation and confidence of all the staff.
A. 全体人员的合作和信任导致了此项发明的成功。
B. 成功地完成此项发明是全体人员互相合作、互相信任的结果。
C. 这项发明成功了，结果使全体人员更加合作、更加信任。
D. 此项发明很成功，是因为全体人员互相合作、互相信任。

[单项选择]__ is the mother of invention.
A. Negligible
B. Needless
C. Necessity
D. Necessarily

[单项选择]

Children are a relatively modem invention. Until a few hundred years ago they did not exist. In Medieval and Renaissance painting you can see pint-sized men and women, wearing grown-up clothes and grown-up expressions, performing grown-up tasks. Children did not exist because the family as we know it had not evolved.
Children today not only exist; they have taken over, in no place more than in America, and at no time more than now. It is always Kids’ Country here. Our civilization is child-centered, child-obsessed. A kid’s body is our physical ideal. One way or another we are determined to "keep in shape", and invariably this means keeping a kid’s shape. On Kids’ Country we do not permit middle age. Thirty is promoted over 50, but 30 knows that soon his time to be overtaken will come. In our over-sixty population there are ten widows for every man. Like a child’s room, Kids’ Country is a mess. New York city seems about to disa
A. To show that men and women were smaller than now.
B. To show that there were no children at all at that time.
C. To show that children wore and acted like adults at that time.
D. To show that children were not permitted to appear in paintings.

[单项选择]Before the invention of photoengraving,steel and copperplate engraving served as the principal means of reproducing illustrations.


A. visions
B. pictures
C. advertisements
D. pages

[单项选择]The invention of paper meant more people could be educated because more books could be printed and ___________.
A. distributed
B. broadcasted
C. scattered
D. spread