Rivers are one of our most important natural resources. Many of the world’s great cities are located on rivers, and almost _______ country has at least one river _
_____(flow) through it that plays
_______ important part in the lives of its people.
Since the beginning of history, people ______________ (use) rivers for transportation. The longest one in the United States is the Mississippi, and the lifeline of Egypt is the Nile. __
___________ transportation, rivers give water to drink, water for crops, and chances for fun and recreation （消遣，娱乐活动）for the people __
______________ live along their banks.
However, large cities and industries that are located on rivers often make problems. As the cities grow ____________ size and industries increase in number, the water in the rivers becomes
__________ (pollute) with chemicals and other materials. People come to kwon the _
____________ (important) of doing more to keep their rivers clean _
____________ they want to enjoy the benefits of this natural resource.
Polar bears are suffering in a(warm) world than ever before.
Polar bears live in environments too cold for most animals. For much of the year,live and hunt on the frozen Arctic sea ice. Nature has prepared them for the cold conditions. But nothing has prepared the bears for the danger threatening the only home
they know.
The polar bears’ world is melting. Studies show that the polar ice(reduce) by 9.8% every 10 years since 1978. Now about 20,000 to 25,000 polar bears live in the Arctic. Polar bears depend on the sea ice for their
(survive). “The sea ice is more than just this platform that the bears walk over.” says Andrew Derocher,
scientist who studies North American polar bear populations. “
it, they can’t exist.”
Some melting and refreezing of the polar ice is natural. in a warmer world, these cycles speed up, and bears have less time
(hunt). Normally, they have three months in the spring when they gain more weight. The extra fat is used later,
the bears are not actively hunting.
Rivers are one of our most important natural resources. Many of the world’s great cities are ______ (locate) on rivers, and almost
_______ country has at least one river flowing through it that plays
________ important part in the lives of its people.
Since the beginning of history, people _______ (use) rivers for transportation. The longest one in the United States is the Mississippi, and the lifeline of Egypt is the Nile.
_________ transportation, rivers give water to drink, water for crops, and chances for fun and recreation for the people
______ live along their banks.
However, large cities and industries that are located on rivers often make problems. As the cities grow _______ size and industries increase in number, the water in the rivers becomes
________ (pollute) with chemicals and other materials. People are learning the
_________ (important) of doing more to keep their rivers clean
________ they want to enjoy the benefits of this natural resource.
Daisy is a kind girl and has longed to help endangered species of wildlife. One day, she was on a magical journey by t a flying carpet. It first flew to Tibet in China,
she saw an antelope. The antelope told her
they were being killed for the wool beneath
t stomachs. Then the carpet flew away to Africa. The elephants there used to be hunted without
m .
With some proper measures taken, for example, only a certain number of animals were (允许)to be hunted and the farmers got paid, the number was gradually increasing.
F , Daisy was taken to a thick rainforest, in which a monkey told her “No rainforest, no animals, no drugs.” She realized the
(重要) of the rain forest to the animals. Daisy appreciated this
(奇特的) experience. She hopes all the animals can live
peace and that all the people will help protect the animals, especially the endangered ones.
As children，loving our parents is an important part of life. It is our parents who create us, (抚养) us, make us who we are and keep a roof over our heads in all kinds of weather.
Here are some ways to love our parents. Firstly, tell them we love them every day. A gentle“I love you”will w a coldest heart. Parents brought us into this world.
them，we might still wander at an unknown corner of an unknown world. Then，show
(尊敬)to them and don’t get angry easily because anger helps
us nor our parents. Instead，keep c
and sometimes share our feelings with them. Besides, obey their requests,
will make our attitudes better. What’s more，understand that parents should be f
when they make mistakes . We should also keep company with them as much as p
. Learn from them by listening to their stories as parents are one of the
(资源) of our growth and even our teachers in one way or another.
Dear Sir or Madam,
I am writing in response to your advertisement for a temporary position an administrative assistant. I am
21-year-old student and would be able to work during June and July.
I (graduate) from the university of Hong Kong next year with an M.S. degree. I feel that I am competent
(meet) your requirements. My studies have included courses in computer control and management and I designed a control simulation system developed with Microsoft.
I don’t have any working experience, I enjoy working with people and I am
(interest) in a career in your industry when I leave university. I am an outgoing, friendly boy
would enjoy building strong interpersonal relationships with valuable customers.
I (be) very grateful if you could send me more
(inform) about the position available. I’m looking forward to
(hear) from you.
Yours sincerely,
James Brown
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