A. explore B. information C. possible D. shortest E. necessary |
![](https://img.xkw.com/dksih/QBM/2022/6/27/3010411403902976/3018632060551168/STEM/9f874a49b4464c809811dd76c09237e2.png?resizew=113)
Some scientists believe that Mars is the planet with the highest chance of supporting human life away from Earth. Some believe that it is
Recently, scientists have sent robots to Mars to gather
A. conditions B. small C. figure out D. comfortable E. outside |
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Therefore, scientists should
For astronauts, they will need to prepare both their minds and bodies for such a long trip away from Earth. NASA set up a special research building that copied the
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special start body still water autumn kind cold most prepare |
The traditional Chinese lunar calendar divides the year into 24 solar terms (节气). It
Grain Buds (小满), the 8th solar term of a year, begins on May 21 this year, and ends on June 4. It means that the seeds (种子) from the grain are becoming full. During the Grain Buds, summer harvest is about to begin. A saying about rain during this time mentions, “A heavy rainfall makes the river full.” Because of the great increase in rainfall, rivers are full of
Frost’s Descent (霜降), the 18th solar term of the year, is the last solar term of
Minor Cold (小寒) is the 23rd one. For
A. is good for B. similar C. caused D. higher E. lower |
Spending two or three hours playing outdoors each day can reduce the chance of becoming short-sighted, a research shows. It challenges the belief that short-sightedness is
The Australian government researchers believe that the sunlight
Both groups spend a
A. reason B. save C. why D. stops E. go to school |
Professor Ian Morgan, from the Australian Research Council’s vision Center. Said, “Humans are naturally long-sighted, but when people begin to
Daylight can be hundreds of times brighter than indoor light. But
A. for example B. in many ways C. closer to D. a collection E. very clever F. short for G. able to H. also I. but J. a new view |
We all know robots from science fiction and children's toys. But what are robots, exactly?
There are two kinds of robots. The first kind is a machine
Czech author Karel Capek was the first to use the word "robot" in 1920, in his play R.U.R. In this play, robots are made in a factory, but they look, think and act like humans. They are
R2D2 is a cute robot character in the Star Wars films. They call him a "droid". That is
A more human-looking android in science fiction is Data, an officer on the spaceship Enterprise in the Star Trek films series. Although
In 1950, the writer Isaac Asimov published
many use with as how thing we for see free |
How has technology made your life easier? When you go to a shopping mall, you can enjoy
The idea of a smart city was suggested by US company IBM in 2010. Actually, a smart city is a city that uses digital technology, such
Smart cities will allow us to save resources. By
Of course, it will take time to build the smart cities of the future. But since we’ve already
connect nearly sense awful who safety they convenient for worth teenager at |
Today, many
A new reader (阅读器) for the blind
Meng Shuqi and Feng Boyao,
As we know, the blind read by touching raised dots. However, there weren’t enough books with raised dots, so the blind can’t get new information in time. Knowing this, the two boys made
A smart system (系统) for the old
A 16-year-old American boy Vetri Vel created a smart system. It is made up of a small computer and a camera. The system can
After Vetri’s neighbor had fallen down alone at home and
Teenage children’s inventions full of love and intelligence are making our lives easier and
size, other, easy, simple, although, danger, life, we, something, what, because |
Robots often appear in science fiction(科幻小说). The robots in these stories can often think, listen, talk and walk
Many robots look like humans and some of them can even speak, but they’re different from
Robots make our
Scientists are making better robots all the time. One day probably every home will have its own robot to tidy bedroom, do the dishes or do
late no doubt discover success achieve |
The Chang’e-4 lander was floating through the black space. It slowly moved closer to the moon’s gray surface and then landed softly. It was January 3,2019, 10:26 a.m., Beijing time. And it was mankind’s first
There is
young; fly; cheap; country; they |
Today, big planes can take many people. But some people enjoy
Many people now dream of flying into space. And
they science be similar to explore like |
Dr. Zhang is one of the