8．
People have explored（探索） nearly every part of Earth．Still，there's one place left that is almost unknown．It's called the Mariana Trench（馬里亞納海溝）．It's the deepest place on Earth．In 2012，movie maker and explorer James Cameron traveled to the trench．He found that it was lonely and moon-like．He loved it．
Cameron is a great movie maker．He made the popular movie Avatar in 2009．He also made Titanic in 1997．Still，Cameron is the first to explore the trench alone．Don Walsh and Jacques Piccard went there in 1960．Since then no one has traveled to the trench-until Cameron．
It took Cameron 2hours and 36minutes to reach the bottom（底部） of the trench．Then he spent 3hours filming．He was looking for something surprising．He even hoped to see a monster（怪物），but he didn't．
Cameron says he felt small at the the bottom of the big black ocean．Still，he loved the trip．Cameron wants to visit the trench again．
6．Marian Trench is theC place in the world．
A．coldest
B．most beautiful
C．deepest
D．most dangerous
7．Cameron's main job is toB．
A．explore dangerous places
B．make movies
C．study the ocean
D．look for monsters
8．Don Walsh and Jacques PiccardA．
A．explored the Mariana Trench before Cameron
B．helped Cameron explore the Mariana Trench
C．explored the Mariana Trench with Cameron
D．discovered the Mariana Trench
9．Why did Cameron go to explore the Mariana Trench？B
A．Because he likes to be alone．
B．Because he likes to explore the real world．
C．Because there are sea monsters．
D．Because he wanted to set a world record．
10．What does this passage mainly talk about？D
A．A great explorer．
B．A special place．
C．A good movie．
D．An interesting journey．
