Scientists   【小题1】(study) gene technology for decades, and although great progress   【小题2】(make), many difficult problems remain unsolved.   We human beings 【小题3】(find) ways to cure various diseases. Although many ways 【小题4】(find) to cure lots of diseases, there are still many that cannot be cured, such as cancer. We 【小题5】(search) for the secret of longevity, and even though people 【小题6】(be) able to live longer than ever before, we still hope it even longer.

Your class starts in 10 minutes, but you find yourself 【小题1】 (stick) in traffic. Don’t panic. With just a press of a button, your car will lift off the ground and fly to school. What’s your 【小题2】 (impress)? It seems like science fiction, but it isn’t. Engineers have taken 【小题3】 the research of flying cars, and they have already found 【小题4】 (solve) to many of the big challenges. They predict that we’ll all be using these 【小题5】 (amaze) vehicles one day. According to Car Trends Magazine, one model, 【小题6】 is part car and part plane, is going to be on the market in the not-so-distant future. It will look like a regular car when it’s on the road, but its wings will unfold when the driver 【小题7】 (decide) to take to the sky. And 【小题8】 (operate) by a computer, all controls will be automatic (自动的). Imagine this: You’ll be doing your homework while your car is getting you to school 【小题9】 (safe). And what does this future dream car cost? Well, at first it will be about a million dollars, but after a few years, you’ll be able to buy 【小题10】 for “only” $60,000. Don’t throw away your old driver’s license just yet!

On May 18, it was announced that China had achieved success in drilling fire ice, a frozen 【小题1】(mix) of water and natural gas, from the South China Sea. 【小题2】(official) known as methane hydrates(甲烷水合物), fire ice produces a high amount of energy when 【小题3】(burn) and its chemical reaction produces nothing but dioxide and water.

Fire ice, both clean and energy-intensive, 【小题4】(consider) the fuel of the future. Many countries, including the United States and Japan, have long been conducting research on fire ice, but extracting（提取）it from the bottom of the sea has been a common problem 【小题5】(trouble) all of them. But, the Chinese team succeeded in drilling fire ice for nearly eight successive days, 【小题6】is a big breakthrough.

However, it is too early 【小题7】(say) a new energy source has been found. The world’s total fire ice reserve is about 21,000 trillion cubic meters, which, if extracted, could meet the world's energy need

It's thought that only by 2025 at【小题10】 earliest might people be able to look at realistic commercial options.