题目内容
（请给出正确答案）
A.its symbols
B.its spelling
C.its pronunciation
D.both its pronunciation and spelling
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更多“By form. we refer to________.”相关的问题
In this passage, what does the term "coalescence" refer to？
A．The gathering of small clouds to form. larger clouds.
B．The growth of droplets.
C．The effect of gravity on precipitation.
D．The movement of dust particles in the sunlight.
B、Refer to
C、Referring
D、With refer to
A、talk
B、speak
C、refer
D、mention
A.translation
B.transport
C.transfer
D.transistor
From paragraph 1, we know that some 40 genes involving in cancer are ______.
A．harmful to the human body
B．necessary to the human body
C．the elements that form. cancer
D．useless to the human body
Dear Jill,
How are you？ How&39;s the family？ We&39;re all fine. I&39;m writing to find out if you want to come with us on a three-day trip to the log cabin up in Rockwille. We&39;re going there on Friday the 10th and driving back on the night of Sunday the 12th. The mountains are really beautiful at this time of the year, and the kids would love to have your children come along. What do you need for a weekend at the cabin？ Well, my kids love swimming and there&39;s a lake, so bring bathing suits. I don&39;t have towels at the cabin, so,bring some along. It&39;s cold at night, but there are lots of blankets there, so don&39; t worry about those.There are enough clean sheets there as well, We like making a fire by the lake and cooking hot dogs and hamburgers, but I think I&39;ll take my small microwave too! It rained last time we went. I hope it doesn&39;t rain this time! Anyway, don&39;t worry about food. We&39;ll take care of that. As a matter of fact,don&39;t bring anything except some clothes, walking shoes，sweaters for the evening ,and good appetites ! We sure hope you can all come along with us. We should have a great weekend.
Talk it over with Jack and the kids and call me or write me in the next few Why does Margaret write to Jill？
A.Because she wants to know how Jill’s family is.
B.Because she invites Jill’s family to go on a weekend trip with her Family
C.Because she wants to tell Jill about her family’s three-day trip
D.Because she asks Jill to go to the beach with her
Which time of the yeat is it now？A.Early spring
B.Summer
C.Winter
D.Late autumn.
What does" those"refer to in the sentence“so don’t worry about those？A.Towels
B.Clean sheets
C.Blankets
D.Bathing suits
请帮忙给出每个问题的正确答案和分析，谢谢！
将英语短文译为中文
3 Self-Powered Nanotech (10分)
Nanosize machines need still tinier power plants
By Zhong Lin Wang
The watchmaker in the 1920s who devised the self-winding wristwatch was on to a great idea: mechanically harvesting energy from the wearer’s moving arm and putting it to work rewinding the watch spring.
Today we are beginning to create extremely small energy harvesters that can supply electrical power to the tiny world of nanoscale devices, where things are measured in billionths of a meter. We call these power plants nanogenerators. The ability to make power on a minuscule scale allows us to think of implantable biosensors that can continuously monitor a patient’s blood glucose level, or autonomous strain sensors for structures such as bridges, or environmental sensors for detecting toxins — all running without the need for replacement batteries. Energy sources are desperately needed for nanorobotics, microelectromechanical systems (MEMS), homeland security and even portable personal electronics. It is hard to imagine all the uses such infinitesimal generators may eventually find.
In Brief
★Nanotechnology has huge potential — but those minuscule devices will need a power source that is better than a battery.
★ Waste energy, in the form. of vibrations or even the human pulse, could provide sufficient power to run such tiny gadgets.
★ Arrays of piezoelectric nanowires could capture and transmit that waste energy to nanodevices.
★ Medical devices will likely be a major application. A pacemaker’s battery could be charged so it would not need replacing, or implanted wireless nanosensors could monitor blood glucose for diabetics.
Surrounding the earth was an unbroken canopy of clouds miles thick and made up mostly of water vapor. Rain falling toward the still-hot earth was heated to steam and rose to the clouds again. After many millions of years, as the earth continued to cool, its surface temperature fell below the boiling point of water. Rainwater could now remain on the earth, covering its whole surface except for the higher places on earth that had been formed from the lighter rock materials.
In 1970, scientists had pieced together evidence that the lighter rock materials had formed one huge continent by a vast ocean. Then, about 200 million years ago, the great continent began to break up, the pieces moving slowly apart.
The onrushing waters of the single huge ocean now entered and filled the spaces between the separating continents--and became the several oceans and seas we know today.
This passage mainly talks about ______.
A．the origin of the earth
B．the origin of the ocean
C．the history of the earth
D．the forming of the earth's crust
A.refer
B.relate
C.furnace
D.furnish
What do the words "Chelyabinsk' and "Irkutsk" refer to？
A. Countries.
B. Mountains.
C. Rivers.
D. Cities.
B.professors
C.presidents
D.old people
