2019年高二课标学英语第五期答案，小编收集了2019年高二课标学英语第五期答案的相关答案，没有答案的敬请期待！完整版的周报答案关注wx号：趣找答案
1. 阅读理解
A team of engineers at Harvard University
has been inspired by Nature to create the first robotic fly. The mechanical fly
has become a platform for a series of new high-tech integrated systems.
Designed to do what a fly does naturally, the tiny machine is the size of a fat
housefly. Its mini wings allow it to stay in the air and perform controlled
flight tasks.
"It's extremely important
for us to think about this as a whole system and not just the sum of a bunch of
individual components (元件)," said Robert Wood, the Harvard engineering
professor who has been working on the robotic fly project for over a decade. A
few years ago, his team got the go-ahead to start piecing together the
components. "The added difficulty with a project like this is that
actually none of those components are off the shelf and so we have to develop
them all on our own," he said.
They engineered a series of
systems to start and drive the robotic fly. "The seemingly simple system
which just moves the wings has a number of interdependencies on the individual
components, each of which individually has to perform well, but then has to be
matched well to everything it's connected to," said Wood. The flight
device was built into a set of power, computation, sensing and control systems.
Wood says the success of the project proves that the flying robot with these
tiny components can be built and manufactured.
While this first robotic flyer
is linked to a small, off-board power source, the goal is eventually to equip
it with a built-in power source, so that it might someday perform
data-gathering work at rescue sites, in farmers' fields or on the battlefield.
"Basically it should be able to take off, land and fly around," he
said.
Wood says the design offers a
new way to study flight mechanics and control at insect-scale. Yet, the power,
sensing and computation technologies on board could have much broader
applications. "You can start thinking about using them to answer open
scientific questions, you know, to study biology in ways that would be
difficult with the animals, but using these robots instead," he said.
"So there are a lot of technologies and open interesting scientific
questions that are really what drives us on a day to day basis."
（1）The difficulty the team of engineers met with while making the robotic fly was that __________.
A . they had no model in their mind
B . they did not have sufficient time
C . they had no ready-made components
D . they could not assemble the components
（2）It can be inferred from paragraphs 3 and 4 that the robotic fly __________.
A . consists of a flight device and a control system
B . can just fly in limited areas at the present time
C . can collect information from many sources
D . has been put into wide application
（3）Which of the following can be learned from the passage?
A . The robotic flyer is designed to learn about insects.
B . Animals are not allowed in biological experiments.
C . There used to be few ways to study how insects fly.
D . Wood's design can replace animals in some experiments.
（4）Which of the following might be the best title of the passage?
A . Father of Robotic Fly
B . Inspiration from Engineering Science
C . Robotic Fly Imitates Real Life Insect
D . Harvard Breaks Through in Insect Study
