Many rare animals have become______. They have disappeared from the earth.
A. unique
B. extinct
C. extraodinary
D. alive
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WHY DO ANIMALS GO EXTINCT?
Different kinds of animals have appeared and disappeared throughout Earth’s history. Some animals go extinct because the climate (4)_______ they live changes. The climate may become wetter or drier. It may become warmer or cooler. If the animals cannot change, or adapt, to the new climate, they die.
Some animals go extinct because thay cannot (5) _______ with other animals for food. Some animals go extinct because they are killed by enemies. New kinds of animals are always evolving. Evolving means that the animals are changing (6) _______ from generation to generation. Small differences between parents, children, and grandchildren slowly add up over many, many generations. Eventually, a different kind of animal evolves.
Sometimes many of the animals on Earth go extinct at the (7) _______ time. Scientists call this a mass extinction. Scientists think there (8) _______ at least five mass extinctions in Earth’s history. The last mass extinction happened about 65 million years ago. This mass extinction killed off the dinosaurs.
Question 4: A. where B. which C. when D. what
Question 5: A. complete B. find C. compete D. exist
Question 6: A. accidentally B. suddenly C. quickly D. slowly
Question 7: A. same B. similar C. different D. various
Question 8: A. has been B. have been C. will be D. are
WHY DO ANIMALS GO EXTINCT?
Different kinds of animals have appeared and disappeared throughout Earth’s history. Some animals go extinct because the climate (4)_______ they live changes. The climate may become wetter or drier. It may become warmer or cooler. If the animals cannot change, or adapt, to the new climate, they die.
Some animals go extinct because thay cannot (5) _______ with other animals for food. Some animals go extinct because they are killed by enemies. New kinds of animals are always evolving. Evolving means that the animals are changing (6) _______ from generation to generation. Small differences between parents, children, and grandchildren slowly add up over many, many generations. Eventually, a different kind of animal evolves.
Sometimes many of the animals on Earth go extinct at the (7) _______ time. Scientists call this a mass extinction. Scientists think there (8) _______ at least five mass extinctions in Earth’s history. The last mass extinction happened about 65 million years ago. This mass extinction killed off the dinosaurs.
Question 4: A. where B. which C. when D. what
Question 5: A. complete B. find C. compete D. exist
Question 6: A. accidentally B. suddenly C. quickly D. slowly
Question 7: A. same B. similar C. different D. various
Question 8: A. has been B. have been C. will be D. are
1. The staff in this office are well-trained and always__thinking____to customers ( think)
2. Your money will be refunded if the goods are not to yourcomplete__satisfaction___( satisfy)
3. Many efforts have been made to protect_dangerous______animals and plant ( danger)
4. People are discharging a lot of chemical __pollution____into the environment ( pollute)
5. We are trying to save many rare animals from ( extinct)extinction
6. Many_organizations______have been set up to protect the environment ( organize)
1. The staff in this office are well-trained and always__thinking ____to customers ( think)
2. Your money will be refunded if the goods are not to yourcomplete__satified ___( satisfy)
3. Many efforts have been made to protect__dangerously_____animals and plant ( danger)
4. People are discharging a lot of chemical __pollution____into the environment ( pollute)
5. We are trying to save many rare animals from ( extinct)extinction
6. Many___organizations____have been set up to protect the environment ( organize)
I. Reading comprehension
It is very difficult for man to live without the animal's help. Their role in the balance of nature ranks as their most important service to man. Animals also help man by supplying him with many foods and other useful products. Man wouldn't have any meat, milk,eggs or silk,wool,fur,etc...without animals. For thousands of years man has caused changes in the animal kingdom greatly. He has tamed many kinds of animals and used them for food and clothing. He has killed or driven away animals but today he tries to protect animals that are in danger of extinction. Like man , most plants depend on animals for many of their basic needs. Without animals,many plants couldn't easily reproduce. For example, many plants with flowers depend on bees and other insects carry their pollen from plant to plantb or birds often fly from one place to another with see clinging to their feet.
1. Animal are very important to man because....
A. They make the earth really interesting
B. They play a role in the balance of nature
C. Man enjoys looking at them inthe zoos
D. Man likes hunting them for pleasure
2. Animals supply man with.....
A. Foods as meat,milk,eggs,...
B. Materials such as wool, fur or silk
C. Many different kinds of useful products
D. All are correct
3. In the long history for thousands of years....
A. Man and animals have been best friends
B. Man has caused big changes to animal life
C. Animals have affected greatly on man's life
D. Ther hasn't been relation between man and animals
4. In nature,animals.....trees and plants
A. Enjoy eating flowers of
B. Have destroyed many kinds of
C. Also help reproduce
D. Prevent the reproduction of
Đáp án: B