China started late in network technologies and has lagged behind for years. With the rapid development of wireless technologies, the concept of the Fifth Generation (5G) mobile communication system started to emerge(出現(xiàn)). Although the development of 5G network technology in the international community is still in the research stage, a number of foreign countries and organizations are working on it. In order to catch up with the pace of the times, China also needs to have its own place in such a competitive environment.

Compared with 2G, 3G and 4G, 5G is not independent and brand-new. It is a combination and further development of present mobile communication technology. Besides the speed upgrade, 5G will also meet the requirements of large bandwidth, super high capacity, super dense site, super high reliability and whenever and wherever possible assess.

There are some rapid changes in China’s telecom space. With the 3G network now widely used, and 4G just around the corner, China is now preparing to enter the 5G era. China has started research and development on the 5G network, and plan to launch the network testing by around 2020. It’s expected that a unified standard will be adopted globally with the 5G technology.

"Under a same standard, different enterprises can be connected, and form a competition environment. Therefore, we can guarantee that enterprises can gain reasonable profits, and at the same time provide faster, better, more convenient and cheaper services to consumers." Wu Ku, Director of Dept. of Science & Tech., MIIT said.

Wu Hequan from Chinese academy of engineering said, "5G will make it possible to connect one million devices to the so-called Internet of Things within one square meter. In the future, it will also be available on high-speed trains moving as fast as 500 kilometers per hour. In the area of the Internet of Vehicles, it can be used in unmanned vehicles, assisted driving and the management of smart cities."

Wu believes China's future Internet will be faster, more intelligent and more reliable.

Chinese government pays more attention to the development of 5G and adopts a more open attitude. With the joint effort of the industry, China will play an increasing important role in the global 5G development.

1.】The first paragraph mainly wants to tell us ____________.

A. the concept of 5G network technology

B. the reason why we need 5G network technology

C. the fact that China fell behind network technology

D. the fact that 5G network technology is good

2.From paragraph 2 and paragraph 3, which kind of network technology is the fastest?

A. 2G B. 3G C. 4G D. 5G

3.What’s Wu’s attitude towards the 5G network technology?

A. Negative. B. Positive.

C. Unknown. D. Neutral.

4.After reading the passage, we can infer that _______________.

A. China is No.1 in 5G network technology.

B. China has already entered 5G ages.

C. China will launch the network testing before 2020.

D. China will use 5G network technology in transportation.

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When children start kindergarten, evident gaps in science knowledge already exist between Whites and minorities and between youngsters from upper-income and low-income families. And they often deepen into significant achievement gaps by the end of eighth grade if they are not dealt with during elementary school.

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A. Give them more nutritious food

B. Offer them more learning resources.

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4.Which of the following can be the best title for the text?

A. Income Gaps Affect Children’s School Performances

B. Provide More Available Access to Childhood Learning

C. Science Knowledge Gaps Are Obvious in Kindergarten

D. Equal Education Is Important in Kindergarten

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科目：高中英語 來源：2017屆四川省高三12月月考英語試卷（解析版） 題型：短文改錯

短文改錯

請修改下面的短文。短文中共有10處語言錯誤，每句中最多有兩處。錯誤涉及一個單詞的增加、刪除或修改。

增加：在缺詞處加一個漏字符號(∧)，并在其下面寫出該加的詞。

刪除：把多余的詞用斜線(\)劃掉。

修改：在錯的詞下劃一橫線，并在該詞下面寫出修改后的詞。

注意：1. 每處錯誤及其修改均僅限一詞；2. 只允許修改10處，多者(從第11處起)不計分。

It is well-known that good habits do us good. Entered high school, I took delight in having fast food and often eat too much. In the end, I was so serious overweight that I suffered a lot from my awkward appearance. It made matters worse was the fact that my classmates made a fun of me at times. From now on, I made up my mind to avoiding snacks. In the meanwhile, I took off jogging to lose weight. To my surprise, it was not long until I did succeed in creating my new appearance. Only then I start to appreciate the importance of developing a good habit.

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