Dinosaurs became extinct millions of years ago because of the earth's climate changed drastically. 

(A) Beame extinct

(B) Because of

(C) The earth’s

(D) Drastically

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

Multiple choice.

1. Millions of Mongolians ___________ semi-nomadic herders for thousands of years.
    a. has been     b. were    c. have been    d. are
2. Look! A boy on the buffalo …………a kite.
    a. fly        b. is flying        c. flies        d. has flied
3. The children ......................... soccer at the moment.
    a. are playing    b. play     c. played               d. have played  
4. …. she ……… London yet?    
    a. Has/arrived     b. Does/arrive     c. Did/arrive    d. Is/arriving 
5. The team ……………. numerous setbacks so far.   
    a. experienced     b. will experience     c. has experienced       d. is experiencing

35.​Jane prefers _______ music to listening to it.​

​a. playing​b. play​c. to play​d. played

36. Millions of Mongolians ___________ semi-nomadic herders for thousands of years.

​a. has been ​b. were​c. have been​d. are

37. Look! A boy on the buffalo …………a kite.

​a. fly​​b. is flying​​c. flies​​d. has flied

38. The children ......................... soccer at the moment.

​a. are playing​b. play ​c. played           ​d. have played  

39. ….she………London yet?​

​a. Has/arrived ​b. Does/arrive ​c. Did/arrive​d. Is/arriving

40. The team ……………. numerous setbacks so far.   

​a. experienced  ​b. will experience ​c. has experienced       d. is experiencing

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions

Unlike these fish, which are actually extinct, the coelacanth is a type of fish that was believed to be extinct. However, an unexpected twentieth- century rediscovery of living coelacanths has brought about a reassessment of the status of the prehistoric sea creature that was believed to have long since disappeared from the Earth. From fossil remains of the coelacanth, paleontologists have determined that the coelacanth was in existence around 350 million years ago, during the Paleozoic Era, more than 100 million years before the first dinosaurs arrived on the Earth. The most recent fossilized coelacanths date from around 70 million years ago, near the end of the age of dinosaurs. Because no fossilized remnants of coelacanth was believed to have died out around the same time as the dinosaurs.

The prehistoric coelacanth studied by paleontologists had distinctive characteristics that differentiated it from other fish. It was named for its hollow spine and was known to have been a powerful carnivore because of its many sharp teeth and a special joint in the skull that allowed the ferocious teeth to move in coordination with the lower jaw. It also had a pair of fins with unusual bony and muscular development that allowed the coelacanth to dart around the ocean floor. These fins also enable the coelacanth to search out prey trying to hide on the ocean bottom.

In 1938, a living specimen of the coelacanth was discovered in the catch of a fishing boat off the coast of South Africa, and since then numerous other examples of the coelacanth have been found in the waters of the Indian Ocean. This modern version of the coelacanth is not exactly the same as its prehistoric cousin. Today's coelacanth is larger than its prehistoric relative, measuring up to six feet in length and weighing up to 150 pounds. However, the modern version of the coelacanth still possesses the characteristic hollow spine and distinctive fins with their unusual bony and muscular structure.

It can be inferred from the passage that the first dinosaurs most likely appeared on Earth around

A. 450 million years ago

B. 350 million years ago

C. 150 million years ago

D. 250 million years ago

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions

Unlike these fish, which are actually extinct, the coelacanth is a type of fish that was believed to be extinct. However, an unexpected twentieth- century rediscovery of living coelacanths has brought about a reassessment of the status of the prehistoric sea creature that was believed to have long since disappeared from the Earth. From fossil remains of the coelacanth, paleontologists have determined that the coelacanth was in existence around 350 million years ago, during the Paleozoic Era, more than 100 million years before the first dinosaurs arrived on the Earth. The most recent fossilized coelacanths date from around 70 million years ago, near the end of the age of dinosaurs. Because no fossilized remnants of coelacanth was believed to have died out around the same time as the dinosaurs.

The prehistoric coelacanth studied by paleontologists had distinctive characteristics that differentiated it from other fish. It was named for its hollow spine and was known to have been a powerful carnivore because of its many sharp teeth and a special joint in the skull that allowed the ferocious teeth to move in coordination with the lower jaw. It also had a pair of fins with unusual bony and muscular development that allowed the coelacanth to dart around the ocean floor. These fins also enable the coelacanth to search out prey trying to hide on the ocean bottom.

In 1938, a living specimen of the coelacanth was discovered in the catch of a fishing boat off the coast of South Africa, and since then numerous other examples of the coelacanth have been found in the waters of the Indian Ocean. This modern version of the coelacanth is not exactly the same as its prehistoric cousin. Today's coelacanth is larger than its prehistoric relative, measuring up to six feet in length and weighing up to 150 pounds. However, the modern version of the coelacanth still possesses the characteristic hollow spine and distinctive fins with their unusual bony and muscular structure.

According to the passage, why are scientists sure that the prehistoric coelacanth was a flesh-eater?

A. Because of its hollow spine

B. Because of its unusual bony and muscular development

C. Because of the shape and movement of the teeth

D. Because of the size of the skull

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions

Unlike these fish, which are actually extinct, the coelacanth is a type of fish that was believed to be extinct. However, an unexpected twentieth- century rediscovery of living coelacanths has brought about a reassessment of the status of the prehistoric sea creature that was believed to have long since disappeared from the Earth. From fossil remains of the coelacanth, paleontologists have determined that the coelacanth was in existence around 350 million years ago, during the Paleozoic Era, more than 100 million years before the first dinosaurs arrived on the Earth. The most recent fossilized coelacanths date from around 70 million years ago, near the end of the age of dinosaurs. Because no fossilized remnants of coelacanth was believed to have died out around the same time as the dinosaurs.

The prehistoric coelacanth studied by paleontologists had distinctive characteristics that differentiated it from other fish. It was named for its hollow spine and was known to have been a powerful carnivore because of its many sharp teeth and a special joint in the skull that allowed the ferocious teeth to move in coordination with the lower jaw. It also had a pair of fins with unusual bony and muscular development that allowed the coelacanth to dart around the ocean floor. These fins also enable the coelacanth to search out prey trying to hide on the ocean bottom.

In 1938, a living specimen of the coelacanth was discovered in the catch of a fishing boat off the coast of South Africa, and since then numerous other examples of the coelacanth have been found in the waters of the Indian Ocean. This modern version of the coelacanth is not exactly the same as its prehistoric cousin. Today's coelacanth is larger than its prehistoric relative, measuring up to six feet in length and weighing up to 150 pounds. However, the modern version of the coelacanth still possesses the characteristic hollow spine and distinctive fins with their unusual bony and muscular structure.

This passage is about a fish

A. that is extinct

B. that once was extinct

C. that is becoming extinct

D. that is not extinct

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions

Unlike these fish, which are actually extinct, the coelacanth is a type of fish that was believed to be extinct. However, an unexpected twentieth- century rediscovery of living coelacanths has brought about a reassessment of the status of the prehistoric sea creature that was believed to have long since disappeared from the Earth. From fossil remains of the coelacanth, paleontologists have determined that the coelacanth was in existence around 350 million years ago, during the Paleozoic Era, more than 100 million years before the first dinosaurs arrived on the Earth. The most recent fossilized coelacanths date from around 70 million years ago, near the end of the age of dinosaurs. Because no fossilized remnants of coelacanth was believed to have died out around the same time as the dinosaurs.

The prehistoric coelacanth studied by paleontologists had distinctive characteristics that differentiated it from other fish. It was named for its hollow spine and was known to have been a powerful carnivore because of its many sharp teeth and a special joint in the skull that allowed the ferocious teeth to move in coordination with the lower jaw. It also had a pair of fins with unusual bony and muscular development that allowed the coelacanth to dart around the ocean floor. These fins also enable the coelacanth to search out prey trying to hide on the ocean bottom.

In 1938, a living specimen of the coelacanth was discovered in the catch of a fishing boat off the coast of South Africa, and since then numerous other examples of the coelacanth have been found in the waters of the Indian Ocean. This modern version of the coelacanth is not exactly the same as its prehistoric cousin. Today's coelacanth is larger than its prehistoric relative, measuring up to six feet in length and weighing up to 150 pounds. However, the modern version of the coelacanth still possesses the characteristic hollow spine and distinctive fins with their unusual bony and muscular structure.

The topic of the preceding paragraph is most likely

A. the discovery of the coelacanth

B. a reassessment of the status of a number of kinds of fish

C. a particular prehistoric sea creature

D. various extinct fish