Throughout the course of history, it is the morals and v    1    of humanity that makes us human the paragon (模范) of the world.

Think of Dr. Lin Qiaozhi. Unlike the m    2     of girls of her time, she studied hard     3    (admit) to the medical university, and finally became a great woman     4    (know) as the“mother of ten thousand babies”.

Then think of the immigrants who went to America to seek their f    5    during the goldrush. They s    6     down and opened up shops to e    7     a living. They brought their own cultures to the country,     8     (make) it a nation with great cultural d    9    .

Finally, there are scientists and a    10    who are intelligent,     11    (有耐心的) and brave enough to carry on this mission     12    the huge risks.They believe the     13    (explore)of this final f     14     can help them     15    (追求) a better future for mankind.

The other day I was showing the boys the weekly chemistry experiment when, before I knew it, the mixture was bubbling over everywhere! The boys who had never come across anything like this before started jumping out of the windows. Sometimes I wonder     1    , most of whom will be going back to their villages after Year 8 anyway. To be honest, I doubt     2    .

Xie Lei lives with a host family who give her lots of good advice. Although some foreign students live in student accommodation or apartments,     3    . Living with host families, in which there may be other college students, gives her the chance to learn more about a new culture. “When I hear an idiom that I don’t understand, I can ask my host family for help ,” explains Xie Lei. “Also, when I miss my family,     4     .”

However,     1     the Internet brings many valuable advantages, being connected has its problems. As with any great invention, we must be     2     of these problems and be careful to use the Internet properly and     3    . Only in this way can the Internet be a place of discovery, wonder and     4     for everyone. It is truly a world without     5    .