Global warming could make humans shorter. Scientists claim to have found evidence that it caused the world's first horses （shrink） nearly 50 million years ago. In fact,a team from the universities of Florida and Nebreaks says
has found a link between the Earth heating up and the size of mammals-homes，during the last time the world heated up. The scientists used fossils to follow the evolution of homes from their earliest
（appear) 56 million years ago. As temperatures went up．their size went
. The scientists say that the current warming could have the same effect
mammals and could even make humans
（small）．“Horses started out small，about the size of a small dog. What's
（surprise）is that after they first appeared，they then became even smaller and then dramatically increased in size, and that
（exact）corresponds to the global warming event, followed by cooling.”"It had been known that mammals
small during the last warm time，
we hadn't realized that temperature specifically was driving the evolution of body size”Dr. Bloch said in the "Science”journal.
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It’s spring again, and it’s the season of fireflies (萤火虫). Their warm and gentle lights glitter in the quiet (dark), especially in mountainous areas or near water. No matter
you are, or how old you are, you’re sure to fall under their spell.
For many older people, fireflies are a reminder of childhood. That’s because they were a lot common long ago,
the industrial development destroyed so much firefly habitat. Wetlands
(appear) and chemicals were dumped into rivers. Fireflies were left with
to feed or breed. What’s more, fireflies seem to keep away
artificial lights. As these spread, the bugs retreated. Not until they had almost vanished
(do) people realize what was happening.
Over the past few years, though, conservation groups and enthusiastic firefly lovers have come together to save these special creatures, are making a comeback. In natural settings all around the island, fireflies are once again lighting up the night and
(help) create special memories for the next generation.
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An idea to cycle to Tibet ____(occur) to me one year ago. I know__
__ idea is quite practical in economical way. For one thing, I can’t have too much money. For another, it is bound to do me good because I can take in fresh air
___ the way there. I called Tom, ___
__ had borrowed me a sum of money, telling him my idea. He was excited at my words and promised to pay off his debt as soon as possible. He also offered to team up with me. __
___ (apparent), he also showed great interest in this trip. Five months___
___ our trip, we kept taking exercise and built up strong body because we knew_
___ would be impossible to realize our dream without being __
___ (health). I used to hear that some people_
___(make) a trip there died from the lack of oxygen---- they did devote their lives to their dream ! But the cost is too much. So ___
__ of us insisted on running in the morning from time to time.
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I borrowed ___ story book from the library the other day and took it home. One evening, having finished supper, I went back to my room and started to read the book that I ____
__ (borrow). I was so ___
___ (absorb) that I knocked the coffee cup over __
__ accident, pouring the coffee onto the book. Wet through and colored brown, the book turned out to be a _
___ (terribly) mess at once. Of course, I couldn’t return the dirty book and the loss should be covered. The next day, I went to the _
__ (big) bookstore in my city, _
__ there were various kinds of books. I finally found several _
__ (copy) of the same book and bought __
___. When I returned the new story book and explained the reason, the librarian accepted the book and praised me for my honesty and ___
__ (responsible).
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I dream to be popular teacher in the future because I hope I can bring knowledge and
(happy) to children.
With time passing by, my wonderful middle school life is coming to the end. Just When I (enter) Sunshine School, I was a childish boy
liked playing computer games. I still remembered my first mid-term exam. I failed many subjects. I even thought about
(give) up. It was Ms Zhang who encouraged me
(face) the difficulties bravely. With the help of my teacher, I redoubled my efforts. Nowadays, I overcame difficulties and always do well in the school subjects. Thanks
Ms Zhang, I have gained a lot both in my study
in my life. I hope I can be as
( excellently) as my teacher.
All in all, I will learn harder to get ( much) knowledge so as to lay a good foundation for my future. I will make full use of my every second and make my dream come true. I believe I can succeed!
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Simon: ______ did you begin this sort of work, Fiona?
Fiona: Let me see. Um, about four years ago.
Simon: Are you enjoy ________?
Fiona: Oh, yes, very much. It is very __________ (tire) because of long working hours, sometimes as many as 12 hours. But it’s exciting to meet people from all over the world.
Simon: What _______ (exact) do you do?
Fiona: Well, I take tourists to the famous places in the city, tell them the history of the places, and explain why they’re famous.
Simon: What special qualifications are _________ (necessity) for guides?
Fiona: Well, they have to enjoy ________ (meet) new people. And they ____
_____ (take) special courses in the history of the city when they studied at college.
Simon: And do you have to know a foreign language?
Fiona: That’s _________ must. My company will only hire those ____
____ can speak at least two foreign languages.
Simon: And you? How many foreign languages can you speak?
Fiona: I can speak three: Spanish, ________ (France) and Italian.
Simon: Three foreign languages? Then I can understand why your work is so easy for you.
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