China, which boasts epochal (划时代的) inventions in ancient times, has once again proved its ability     1     (change) the world with its “new four great inventions”: high-speed railways, electronic payments, shared bicycles and online shopping. The new four great inventions are all related to China’s high-tech innovation, which improved the quality of people’s lives.

My wallet is no longer in use. I can buy and eat whatever I want     2     (simple) with a tap of my phone, and even pancake sellers are using Alipay ( mobile payment).

The bikes     3     (them) are not new, but the operating model of bike-sharing     4     (base) on satellite navigation (导航) system, mobile payment, big data and other high technologies. Shared bikes are bringing cycling back     5     people’s lives... and they are making public transport more attractive and convenient, and     6     (encourage) people to be more active.

It is increasingly clear that China is innovating (创新) and no longer copying western ideas. It is increasingly clear that China is leading in many     7     (way) such as social messaging app WeChat. This is partly     8     China skipped over the PC era-and went directly to mobile. China has the largest mobile use in the world.

    9     growing number of foreigners hope to promote economic     10     ( develop) in their home countries by highlighting (聚焦) the need for technological achievements like that of China.

The abacus (算盘) was a great invention in ancient China. The abacus     1     (invent) on the basis of small rods (棒). Later, with the     2     (develop) of productivity, the amount of calculation was     3     (great). And calculation with counting rods limited the calculation. Thus, people invented a more     4     (advance) counter—the abacus.

With the application of the abacus, people summarized many abacus rhymes (珠算口诀),     5     (increase) the calculating speed. By the time of the Ming Dynasty, people could use the abacus in addition, subtraction, multiplication and division,     6     were widely used in calculating weight, amount, space and volume.

Since it was easy to make or buy     7     abacus. And it was also easy to remember abacus rhymes. The abacus was widely used in ancient China. Later, the abacus was     8     (gradual) spread into Japan, Korea, America and some countries and regions in Southeast Asia.

People find that using abacuses can improve thinking and practical abilities in addition     9     providing convenient calculation. Since it     10     (require) cooperation of mind, eye and hand, it is a good way to improve the comprehensive reaction ability.

【推荐1】Cloning has always been with us and is here to stay. It is a way of making     1     exact copy of another animal or plant. Cloning plants is straightforward while cloning animals is very complicated. The process of cloning is a difficult task     2    (undertake) Many attempts to clone mammals failed. But finally the determination and patience of the scientists paid     3     in 1996 with a breakthrough-the cloning of Dolly the sheep.

At first the fact     4     she seemed to develop normally was very encouraging. Then came the     5    (disturb) news that Dolly had become seriously ill, which made cloning scientists cast down. Meanwhile, Dolly’s appearance raised a storm of     6    (object) and had a great impact on the media and public imagination.     7    (apparent) it became controversial. Although at present human egg cells and embryos     8    (need)for cloning research are hard to obtain, newspapers wrote of evil leaders     9    (hope) to clone themselves to attain their ambitions. Religious leaders also raised moral questions. Some countries reformed their legal systems and     10    (forbid) research into human cloning, but others like China and the UK, continued to accumulate evidence of the abundant medical aid that cloning could provide.