完形填空是职称英语考试常考题型，为了帮助大家被考2017年职称英语完形填空题，小编分享了一些理工类C及完形填空题练习，希望能对大家有所帮助!
2015年真题
Rescue Platform
In the aftermath of the terrorist attacks on the World Trade Center, security experts are trying to develop new ways of rescuing people from burning skyscrapers. One__________ (51) is a platform capable of flying vertically and hovering in the air__________ (52) a helicopter. The platform would rise up and down alongside a skyscraper and pick up people __________(53) in high stories.
The idea for vertical takeoff platform was hatched (策划) more than ten years ago by a Russian aerospace engineer, David Metreveli, who has since moved to Israel. Metreveli's design__________(54) the Eagle, calls for two jet engines that__________ (55) four large horizontal propellers. The spinning of the propellers __________(56) the necessary lift, or upward force, to raise the platform. The more__________(57) is supplied to the propellers, the higher the platform__________(58). Moving the platform sideways involves__________ (59) differing amounts of power to each propeller.
Helicopters are now used in some__________ (60) to get people out of burning building. Escape baskets slung from them dangle beside the building for people to climb into.__________(61) , the baskets cannot reach every floor of a building__________ (62) the ropes from which they hang become unstable __________ . (63) a certain length.
So far, Metreveli has built a small-scale model of the Eagle to__________ (64) his idea. In the wake of September 11, he has been able to secure enough funding to start building a larger,4-meter by 4-meter prototype,__________ (65) he calls the Eaglet.
51. A. idea
B. skill
C. building
D. improvement
52. A. silks
B. unlike
C. like
D. likely
53. A. saved
B. trapped
C. climbed
D. raised
54. A. linked
B. called
C. equaled
D. described
55. A. change
B. move
C. turn
D. shut
56. A. sends
B. keeps
C. opens
D. generates
57. A. power
B. sense
C. feature
D. model
58. A. stays
B. rises
C. stars
D. runs
59. A. reducing
B. comparing
C. developing
D. applying
60. A. kinds
B. cases
C. stories
D. products
61. A. Unfortunately
B. Uncertainly
C. Unimportantly
D. Unexpectedly
62. A. before
B. because
C. until
D. however
63. A. beyond
B. under
C. off
D. on
64. A. tell
B. test
C. discuss
D. report
65. A. who
B. which
C. where
D. what
2014年真题
Citizen Scientists
Understanding how nature responds to climate change will require monitoring key life cycle events- flowering, the appearance of leaves, the first frog calls of the spring--all around the world. But ecologists can't be __________(51) so they're turning to non-scientists, sometimes called citizen scientists, for help.
Climate scientists are not present everywhere. __________ (52) there are so many places in the world and not enough scientists to observe all of them, they're asking your help in __________ (53)signs of climate change across the world. The citizen scientist movement encourages __________ (54)people to observe a very specific research interest--birds, trees, flowers budding, etc.- and send their observations__________ (55) a giant database to be observed by professional scientists. This helps a small number of scientists track a__________ (56) amount of data that they would never be able to gather on their own. __________(57) like citizen journalists helping large publications cover a hyper-local beat, citizen scientists are ready for the condition- where they live. __________ . (58) that's needed to become one is a few minutes each day or each week to gather data and __________(59)it in.
A group of scientists and educators launched an organization last year __________(60) the National Phenology (生物气候学) Network. "Phenology" is what scientists call the study of the timing of events in nature.
One of the group's first efforts relies on scientists and non-scientists__________ (61) to collect data about plant flowering and leafing every year. The program, called Project Bud Burst, collects cycle __________ (62) on a variety of common plants from across the United States. People participating in the project--which is__________ (63) to everyone--record their observations on the Project Bud Burst website.
"People don't__________ (64) to be plant experts- they just have to look around and see what's in their neighborhood," says Jennifer Schwartz, an education consultant with the project.
"As we collect this data, we'll be able to make an estimate of__________(65) plants and communities of plants and animals will respond as the climate changes."
51. A. everywhere
B. anywhere
C. somewhere
D. nowhere
52. A. If
B. Although
C. When
