After I lost my right hand in a car accident two years ago, I began to withdraw into myself,    1    (believe) I would never be able to lead a normal life again. I    2    (equip) with an artificial hand, but it did not feel like part of me.

Even simple things like getting dressed were unbelievably difficult. Three months ago,    3    , all that changed when I was given the chance to test a new robotic hand.

Scientists have made great progress in robotic technology in recent years, and their work on robotic limbs    4     (change) my life. With my new hand, I can move my individual fingers and hold on to small things like pens and pencils. More    5     (amazing), my robotic hand is capable of feeling varying degrees of pressure, just like a real hand. In addition, it looks very lifelike with special materials    6    (use) on the outside.

I have rediscovered all the hobbies    7    I had enjoyed before my accident. For example, I have been cooking for my family again    8    I got my new hand. Not only can I do more, but I have also become    9    (confident) and outgoing. I’m so grateful for all the new    10    (possibility) my robotic hand has opened up.

It was announced that China had achieved success in drilling combustible ice(可燃冰)，a frozen     1     (mix)of water and natural gas, from the South China Sea.     2     (official)known as methane hydrates(甲烷水合物), combustible ice produces a high amount of energy when burnt and its chemical reaction produces nothing but dioxide and water.

Combustible ice, both clean and energy-intensive,     3     (consider)the fuel of the future. Many countries, including the United States and Japan,     4     (conduct) research on combustible ice, but extracting(提取)it from the bottom of the sea has been a common problem     5     (trouble)all of them. But the Chinese team succeeded in drilling combustible ice for nearly eight days,     6     was a big breakthrough.

However, it is too early     7     (say)a new energy source has been found. The world's total combustible ice reserves range from 280 trillion cubic meters to 2,800 trillion cubic meters, which, if extracted, could meet the world's gas demands     8     80 to 800 years at current rates. But the successful test drilling of combustible ice does not mean it can be extracted for     9     (industry)use. China has to solve many problems before it can use combustible ice as a source of energy. It’s thought that only by 2025 at     10     earliest might people be able to see realistic commercial values.