There has been a lot of publicity (宣传) recently surrounding 5G, the next generation of wireless technology for the world. But what is this technology and how might it change our lives?
What is 5G?
5G stands for fifth generation, meaning the next step in the progression of technology to replace the current 4G system. 4G was the replacement for 3G, which came after 2G, and so on. These systems are wireless computer networks. Earlier “G” systems were designed to improve mobile communication operations. Each new technology brought major improvements in speed and greatly increased network capacity. The new 5G system promises more of the same. It is expected to permit more users to do more things-at a faster rate. Higher internet speeds and larger network capacity should result in better performance for device users connected to 5G. However, technology experts say there is a major way that 5G is different than the earlier systems. It will move well beyond mobile network technology to affect many more devices and industries than other “G” versions.
When will it be available?
Before we can all use 5G, wireless companies and phone makers will have to complete and deploy (部署) a whole new system. New phones and communication equipment must be built. American wireless companies have been preparing for the new system for some time. They have been creating new network equipment and buying broadcasting space to carry 5G signals. They have built news G antennas(天线)to serve American cities and towns. Wireless providers will invest at least $275 billion n 5G-related networks in the United States, the industry group CTIA reported. The first U.S, launch of 5G is expected to happen sometime this year. Industry experts expect it will take a few more year to go nationwide. It will take even longer to reach rural areas. China is expected to launch 5G sometime in 2020, while European nations are likely to build their systems more slowly over time.
1.Which system is widely used nowadays?
A.5G. B.2G. C.3G D.4G.
2.Which of the following is NOT 5G system’s advantage to the other Gs?
A.It will allow more users to do more things. B.The internet speed will be much higher.
C.The users will spend much less money on it. D.It will affect more devices and industries
3.What can we learn from the last paragraph?
A.5G system has nothing to do with phone makers.
B.There is much work to do before 5G comes into use.
C.New phones will be much smarter than those used now.
D.4G system will be stopped as soon as 5G comes into use.
4.In which order will the following countries use 5G system according to the passage?
A.USA→China→European nations. B.China→USA→European nations.
C.USA→European nations→China. D.European nations→China→USA.
高一英语阅读选择中等难度题
_________ has recently been done to provide more buses, a shortage of public vehicles remains a serious problem.
A.That B.What C.In spite of what D.Though what
高一英语单项填空中等难度题查看答案及解析
阅读理解。
Dear Friend.
The recent success of children’s books has made the general public aware that there's a huge market out there.
And there's a growing need for new writers trained to create the $3 billion worth of children's books bought each year, plus stories and articles needed by over 650 publishers of magazines for children and teenagers.
Who are these needed writers? They’re ordinary folks like you and me.
But am I good enough?
I was once where you might be now.My thoughts of writing had been pushed down by self-doubt, and I didn't know where to turn for help.
Then, I accepted a free offer from the Institute to test my writing aptitude(潜能), and it turned out to be the inspiration I needed.
The promise that paid off
The Institute made the same promise to me that they will make to you, if you show basic writing ability:
You will complete at least one manuscript(手稿)suitable to hand in to a publisher by the time you finish our course.
I really didn't expect any publication before I finished the course, but that happened.I sold three stories.And I soon discovered that was not unusual at the Institute.
Since graduation, I have authored 34 nationally published children's books and over 300 stories and articles.
Free test and brochure
We offer a free aptitude test and will send you a copy of our brochure describing our recognized home-study courses on the basis of one-on-one training.
Realize your writing dream today.There's nothing sadder than a dream delayed until it fades (消失)forever.
Sincerely.
Kristi Holl, Instructor
Institute of Children's Literature
1.From the first three paragraphs, we learn that .
A.children's books are usually bestsellers
B.publishers are making $3 billion each year
C.magazines for teenagers have drawn public attention
D.there is a growing need for writers of children's books
2.When finishing the course, you are promised to .
A.be a successful publisher
B.become a confident editor
C.finish one work for publication
D.get one story or article published
3.Kristi Holl mentions her experience mainly to ____.
A.prove she is a good instructor
B.promote the writing program
C.give her advice on course preparation
D.show she sold more stories than articles
高一英语阅读理解中等难度题查看答案及解析
The recent popularity of children’s books has made the public _____ that there’s a huge market out there.
A. aware B. concerned
C. fortunate D. hopeful
高一英语单项填空简单题查看答案及解析
Do you know a lot of research work __ in recent years?
A. have been carried out B. has carried out
C. are carried out D. has been carried out
高一英语单项填空简单题查看答案及解析
American public education has changed in recent years. One change is that increasing numbers of American parents and teachers are starting independent public schools called charter schools.
In 1991, there were no charter schools in the United States. Today, more than 2300 charter schools operate in 34 states and the District of Columbia. 575000 students attend these schools. The students are from 5 years of age through 18 or older.
A charter school is created by groups of parents, teachers and community members. It is similar in some ways to a traditional public school. It receives tax money to operate a number of students. The charter school must prove to local or state governments that its students are learning. These governments provide the school with the agreement, or charter that permits it to operate.
Unlike a traditional public school, however, the charter school does not have to obey most laws governing public schools. Local, state or federal governments cannot tell it what to teach.
Each school can choose its own goals and decide the ways it wants to reach those goals. Class sizes are usually smaller than in many traditional public schools. Many students and parents say teachers in charter schools can be more creative.
However, state education agencies, local education-governing committees and unions often oppose charter schools. They say these schools may receive money badly needed by traditional public schools. Experts say some charter schools are doing well while others are struggling.
Congress provided 200 million dollars for establishing charter schools in the 2006 federal budget. But, often the schools say they lack enough money for programs. Many also lack needed space. District officials say they have provided 14 former school buildings for charter education. Yet charter school supporters say officials should try harder to find more space.
Charter Schools in America
Definition | Charter schools are called 1 ___________ public schools. | ||
2 _______ between charter school and traditional school | ★ 3 _______ tax money to operate a number of students. ★ Having to make 4. _______ know the students are learning. ★ Getting 5 _________ to operate from government. | ||
6 _______ between charter school and traditional school | ★ Not having to obey most laws. ★ Having the 7_______ to decide what to teach. ★ Being free to choose the goals and decide the 8_________ of teaching them. ★ Having smaller class sizes. ★ Having teachers who are more creative | ||
The problems | Education departments’ opposition | ★These schools receiving money badly needed by traditional public schools. ★ Not 9__________ doing well. | |
10 ___________ difficulties | ★ Lacking enough money ★ Lacking needed space | ||
高一英语填空题简单题查看答案及解析
China has been pushing the reform of public hospitals _______ all its citizens.
A. in charge of B. for the purpose of
C. in honor of D. for the benefit of
高一英语单项填空中等难度题查看答案及解析
China has been pushing the reform of public hospitals______ all its citizens.
A.in charge of B.for the purpose of C.in memory of D.for the benefit of
高一英语单项填空中等难度题查看答案及解析
Lots of waste has been dumped into the river,which has led to________.
A.lots of fish having been killed | B.kill lots of fish |
C.lots of fish being killed | D.lots of fish to kill |
高一英语单项填空困难题查看答案及解析
Safety in school has been of great concern (关注) because of recent reports about accidents _____ students got injured or killed at school.
A.for which | B.when | C.which | D.in which |
高一英语单项填空简单题查看答案及解析
The science of computer, _____rapid progress has been made in recent years, is the most important of all science.
A.to which | B.in which | C.of which | D.from which |
高一英语单项填空简单题查看答案及解析