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

Different kinds of animals have appeared and disappeared throughout Earth’s history. Some animals go extinct because the climate (1)…………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 they cannot (2)……………… 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 (3)…………… from generation. Small differences between parents, children, and grandchildren slowly add up oer many, many generations. Eventually, a different kind of animals evolves.

      Sometimes many of the animals on earth go extinct at the(4)……………time. Scientists call this a mass extinction. Scientists think there have been (5)……………… five mass extinctions in earth’s history. The last mass extinction happened about 65 million years ago. This mass extinction killed off the dinosaurs.

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.

          Dinosaurs were reptiles that lived during a period of earth’s history called the Mesozoic Era, which is known as the Age of Reptiles. The first dinosaurs appeared more than 200 million years ago. For many millions of years, they dominated the land with their huge size and strength. Then about 65 million years ago, they died out rather suddenly, never to reemerge.
          The word dinosaur comes from two Greek words meaning “terrible lizard”. Dinosaurs were not lizards, but their appearance could be truly terrifying. The biggest ones weighed more than ten times as much as a mature elephant and nearly equaled the size of most modern—day whales. The famous kinds of dinosaurs, including the brontosaur and tyrannosaurus, reached 80 to 90 feet in length. Not all dinosaurs were giants, however, some were actually no larger than a chicken.
          Scientists still do not know what caused dinosaur to disappear. One theory involves a change in the earth’s climate. It is believed that temperature dropped significantly towards the end of the Cretaceous Period. Too large to hibernate and not having fur or feathers for protection, it is possible that the climate became too chilly for dinosaurs. In contrast, other species having protection, such as the mammals and birds, were able to survive

The word “ones” in the passage refers to __________

A. dinosaurs        

B. millions  

C. lizards     

D. whales

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.

          Dinosaurs were reptiles that lived during a period of earth’s history called the Mesozoic Era, which is known as the Age of Reptiles. The first dinosaurs appeared more than 200 million years ago. For many millions of years, they dominated the land with their huge size and strength. Then about 65 million years ago, they died out rather suddenly, never to reemerge.
          The word dinosaur comes from two Greek words meaning “terrible lizard”. Dinosaurs were not lizards, but their appearance could be truly terrifying. The biggest ones weighed more than ten times as much as a mature elephant and nearly equaled the size of most modern—day whales. The famous kinds of dinosaurs, including the brontosaur and tyrannosaurus, reached 80 to 90 feet in length. Not all dinosaurs were giants, however, some were actually no larger than a chicken.
          Scientists still do not know what caused dinosaur to disappear. One theory involves a change in the earth’s climate. It is believed that temperature dropped significantly towards the end of the Cretaceous Period. Too large to hibernate and not having fur or feathers for protection, it is possible that the climate became too chilly for dinosaurs. In contrast, other species having protection, such as the mammals and birds, were able to survive

The word “chilly” in the passage refers to _________

A. very hot 

B. extremely cold  

C. very cold          

D. humid

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.

          Dinosaurs were reptiles that lived during a period of earth’s history called the Mesozoic Era, which is known as the Age of Reptiles. The first dinosaurs appeared more than 200 million years ago. For many millions of years, they dominated the land with their huge size and strength. Then about 65 million years ago, they died out rather suddenly, never to reemerge.
          The word dinosaur comes from two Greek words meaning “terrible lizard”. Dinosaurs were not lizards, but their appearance could be truly terrifying. The biggest ones weighed more than ten times as much as a mature elephant and nearly equaled the size of most modern—day whales. The famous kinds of dinosaurs, including the brontosaur and tyrannosaurus, reached 80 to 90 feet in length. Not all dinosaurs were giants, however, some were actually no larger than a chicken.
          Scientists still do not know what caused dinosaur to disappear. One theory involves a change in the earth’s climate. It is believed that temperature dropped significantly towards the end of the Cretaceous Period. Too large to hibernate and not having fur or feathers for protection, it is possible that the climate became too chilly for dinosaurs. In contrast, other species having protection, such as the mammals and birds, were able to survive

What is the best title for this passage?

A. The Domination of the Land

B. The Metabolism of Dinosaurs

C. Earth’s Largest Reptiles      

D. The History of Earth

Read the following passage then choose the one answer A, B, C or D which you think the correct

Dinosaurs were reptiles that lived during a period of earth’s history called the Mesozoic Era, which is known as the Age of Reptiles. The first dinosaurs appcared more than 200 million ycars ago. For many millions of years, they dominated the land with their huge size and strength. Then about 65 million years ago, they died out rather suddenly, never to reemerge.

The word dinosaur comes from two Greek words meaning “terrible lizard”. Dinosaurs were not lizards, but their appcarancc could be truly terrifying. The biggest ones weighed more than ten times as much as a mature elephant and nearly equaled the size of most modem—day whales. The famous kinds of dinosaurs, including the brontosaur and tyrannosaurus rex, reached 80 to 90 feet in length. Not all dinosaurs were giants, however, some were actually no larger than a chicken.

Scientists still do not know what caused dinosaur to disappear. One theory involves a change in the earth’s climate. It is believed that temperature dropped significantly towards the end of the Crctaccous Period. Too large to hibemate and not having fur or feathers for protection, it is possible that the climate became too chilly for dinosaurs. In contrast, other species having protection, such as the mammals and birds, were able to survive.

Question:According to the passage, what is true about the size of dinosaurs?

A. It was rather uniform

B. It guaranteed their survival

C. It made them the largest creatures ever on earth

D. It varied quite greatly

Read the following passage then choose the one answer A, B, C or D which you think correct

Dinosaurs were reptiles that lived during a period of earth’s history called the Mesozoic Era, which is known as the Age of Reptiles. The first dinosaurs appcared more than 200 million ycars ago. For many millions of years, they dominated the land with their huge size and strength. Then about 65 million years ago, they died out rather suddenly, never to reemerge.

The word dinosaur comes from two Greek words meaning “terrible lizard”. Dinosaurs were not lizards, but their appcarancc could be truly terrifying. The biggest ones weighed more than ten times as much as a mature elephant and nearly equaled the size of most modem—day whales. The famous kinds of dinosaurs, including the brontosaur and tyrannosaurus rex, reached 80 to 90 feet in length. Not all dinosaurs were giants, however, some were actually no larger than a chicken.

Scientists still do not know what caused dinosaur to disappear. One theory involves a change in the earth’s climate. It is believed that temperature dropped significantly towards the end of the Crctaccous Period. Too large to hibemate and not having fur or feathers for protection, it is possible that the climate became too chilly for dinosaurs. In contrast, other species having protection, such as the mammals and birds, were able to survive

According to the passage, what is true about the size of dinosaurs?

A. It was rather uniform

B. It guaranteed their survival

C. It made them the largest creatures ever on earth

D. It varied quite greatly

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.

          Dinosaurs were reptiles that lived during a period of earth’s history called the Mesozoic Era, which is known as the Age of Reptiles. The first dinosaurs appeared more than 200 million years ago. For many millions of years, they dominated the land with their huge size and strength. Then about 65 million years ago, they died out rather suddenly, never to reemerge.
          The word dinosaur comes from two Greek words meaning “terrible lizard”. Dinosaurs were not lizards, but their appearance could be truly terrifying. The biggest ones weighed more than ten times as much as a mature elephant and nearly equaled the size of most modern—day whales. The famous kinds of dinosaurs, including the brontosaur and tyrannosaurus, reached 80 to 90 feet in length. Not all dinosaurs were giants, however, some were actually no larger than a chicken.
          Scientists still do not know what caused dinosaur to disappear. One theory involves a change in the earth’s climate. It is believed that temperature dropped significantly towards the end of the Cretaceous Period. Too large to hibernate and not having fur or feathers for protection, it is possible that the climate became too chilly for dinosaurs. In contrast, other species having protection, such as the mammals and birds, were able to survive

According to the passage, what is true about the size of dinosaurs?

A. It made them the largest creatures ever on earth.

B. It varied quite greatly.

C. It guaranteed their survival.

D. It was rather uniform.

Read the following passage then choose the one answer A, B, C or D which you think the correct

Dinosaurs were reptiles that lived during a period of earth’s history called the Mesozoic Era, which is known as the Age of Reptiles. The first dinosaurs appcared more than 200 million ycars ago. For many millions of years, they dominated the land with their huge size and strength. Then about 65 million years ago, they died out rather suddenly, never to reemerge.

The word dinosaur comes from two Greek words meaning “terrible lizard”. Dinosaurs were not lizards, but their appcarancc could be truly terrifying. The biggest ones weighed more than ten times as much as a mature elephant and nearly equaled the size of most modem—day whales. The famous kinds of dinosaurs, including the brontosaur and tyrannosaurus rex, reached 80 to 90 feet in length. Not all dinosaurs were giants, however, some were actually no larger than a chicken.

Scientists still do not know what caused dinosaur to disappear. One theory involves a change in the earth’s climate. It is believed that temperature dropped significantly towards the end of the Crctaccous Period. Too large to hibemate and not having fur or feathers for protection, it is possible that the climate became too chilly for dinosaurs. In contrast, other species having protection, such as the mammals and birds, were able to survive.

Question:It can be inferred from the passage that the Age of Reptiles lasted about_________

A. 135 million years

B. 200 million years

C. 80 million ycars

D. 65 million years