go below the ocean’s surface, the greater the pressure. Dr Dituri wanted to learn how... that was about 66 percent greater than the pressure on the surface.The farther you go below the ocean ……

NOWADAYS more teenagers than ever know about the dangers of smoking. Check out the situation in the US: ……

equestrian (马术) contest.About noon, Cortney and her trainer said they smelt smoke. A big wildfire... there spoke highly of (高度赞扬) Cortney for being calm and brave when dangers come. ……

VCG  A man takes photos of burned-out cars after the wildfire on Aug 11 in Lahaina, Hawaii. As of Aug 14, at least 96 lives had been taken by the wildfire and more than 2,200 structures had ……

to big fires夏威夷大火肆虐，伤亡惨重夏威夷大火肆虐，伤亡惨重A man takes photos in Hawaii on Aug 11. A wildfire (山火) took place in Hawaii, US, in August. Many people lost their homes during the fire. The wildfire had taken ……

Ryan Honary stands with the wildfire sensor he creates.   screenshot from youtubeA US teen innovator creates wildfire sensor to safeguard communitiesA US teen innovator creates wildfire ……

Ryan Honary stands with the wildfire sensor he created.   screenshot from youtube  A US teenager makes wildfire sensor to keep communities safeA US teenager makes wildfire sensor ……

relaxedB. more relaxedC. happierC. happierD. calmerD. calmer2. What can we learn from Paragraph 3?2. What can we learn from Paragraph 3?A. The human left brain is usually more positive than the right one ……

No doubt about it. China's plugged in. And millions keep in touch via the instant message service QQ. But how safe is it? People out there may know more about you than you think. For more ……

the one-week activity, people will learn about zombies and how to defend themselves from outside dangers... will last for ___________.2. From the activity, people can learn about ________ and ________ protect ……

宇航服竟然有这么多层！Spacesuits have 14 layers.They weigh about 125 kg. They’re like small spacecraft. They protect astronauts from the dangers of space, such as extreme temperatures and radiation (辐射). NASA ……

啦啦队长光鲜夺目的背后却是艰辛的汗水。
. It is not just about supporting sports teams. Now it's a sport too. Cheerleading has become..., but if something goes wrong it can be terrible.To learn difficult skills, cheerleaders have to work ……

away. The reason? The girl has got aweapon(武器): herhairpin(发夹).Dangers of this kind could happen to you.Are you brave and clever enough to face them? It's helpful to learn a fewtricks(技巧).Last week ……

and voles from cities were about 6 percent bigger than those from the same animals from rural areas, reported The New York Times. But what is it about living in the city that makes animals smarter ……

big in two species – mice and voles. The brains of mice and voles from cities were about 6 percent... is it about living in the city that makes animals smarter?w“Humans are creating all these totally new ……