50.
What will probably be talked about in the following paragraph?
A. How
negative self talk influences a person.
B. How
positive self talk reduces stress in one’s life.
C.
Some great ways of making great friends.
D.
Some creative ways of practicing affirmation.
C
So
far, scientists have named about 1.8 million living species(物种)，and that’s just a
small part of what probably exists on Earth. With so many plants，animals，fungi，and other
organisms covering the planet，it can be tough to figure
out what type of spider is crawling up your leg or what kind of bird just flew
by.
A
soon-to-be-launched Website might help. An international team of researchers
has announced the creation of a Web - based Encyclopedia of Life(EOL). The project
aims to catalogue every species on Earth in a single，easy-to-use reference
guide.
To get
the encyclopedia started，the creators will use
information from scientific databases that already exist. And eventually，in special
sections of the site，nonscientists with specialized knowledge will join. Gardeners，for example，will be able to
record the dates that their flowers first bloom each year. Bird-watchers will
be able to input which birds they’ve seen and where. The technology for this
kind of tool has only recently become available.
As the
EOL develops, you might find it useful for school projects. The site will have
special pages for kids who are studying ecosystems in their neighborhoods. To
make sure the encyclopedia is accurate，scientists will review much
of the information added to it. People who visit the site will be able to
choose to skip pages that haven’t been reviewed.
Another
convenient characteristic of the EOL is that you’11 be able to pick the level
of detail you see to match your interests，age，and current
knowledge. If you wanted to learn about polar bears for a science class report，for example，you could use the
“novice” setting to get basic
information about the animals. On the “expert” setting，on the other
hand. you could get much more detailed information about the history，literature，and exploration
of polar bears.
It now
takes years for scientists to collect all the data they need to describe and
analyze species. The creators of the Encyclopedia of Life hope that their new
tool will speed that process.
Keep
an eye on www.eol.org. Pages will begin to go up sometime next year，and you might
find them useful for your school reports. The EOL team might have the basics
for all 1.8 million entries online as early as 2017. Someday，you might add
your own notes.
60. Teddy
is a film lover. After seeing the film The Star Wars，he imagined that
he could one day be a commander，leading his soldiers to
protect his planet from being invaded.