C

阅读短文，并按要求完成下列句子。

We know that many animals do not stay in one place.Birds, fish and other animals move from one place to another place at a certain time.They move for different reasons: most of them move to find food more easily, but others move to get away from places that are too crowded.

When cold weather comes, many birds move to warmer places to find food.Some fishes give birth in warm water and move to cold water to feed.The most famous migration is probably the migration of the fish which is called “salmon” (鲑鱼).This fish is born in fresh water but it travels many miles to salt water.There it spends its life.When it is old, it returns to its birthplace in fresh water.Then it gives birth and dies.In northern Europe, there is a kind of mouse.They leave their mountain homes when they become too crowded.They move down to the low land.Sometimes they move all the way to the seaside, and many of them are killed when they fall into the sea.

Recently, s cientists have studied the migration of a kind of lobster (龙虾).Every year, when the season of the bad weather arrives, the  lobsters get into a long line and start to walk across the floor of the ocean.Nobody knows why they do this, and nobody knows where they go.So, sometimes we know why humans and  animals move from one place to another place, but at other times we don't.Maybe living things just like to travel.

46.The reason for most of the animals to move is ____________.

47.Find the word in the passage which means “the movement from one place to another of a large group of animals” and write it down here: ______.

48.The underlined word “There” in the second paragraph refers to (指的是) ____________.

49.The salmon comes back to its birthplace in order to ____________.

50.The lobsters begin to move to another place when ____________.

Ⅶ.情景交际 (10分)

从方框中选择适当的选项补全对话。

A.Yes, there are many.

B.Yes, they are.

C.I really enjoyed myself.

D.Does it eat meat?

E.I am riding the elephant.

Peter: Hi, Sally.Come and have a look at my photos.

Sally: Are these the photos you took in Africa, Peter?

Peter: 51.______ Look, this is a wildebeest.It's an animal in Africa.

Sally: 52.______

Peter: No, it doesn't.It only eats grass.

Sally: Are there a lot of animals in Africa?

Peter: 53.______

Sally: Oh, this photo looks interesting.What are y ou doing there?

Peter: 54.______

Sally: Did you have a good time there?

Peter: Of course.55.______

Ⅷ.词汇题 (10分)

根据句意及汉语提示完成单词。

56.This kind of plant is very ______ (稀少的).It's difficult to find it.

57.Scientists are doing ______ (研究) on how to clean the polluted river.

58.This ______ (情况) often happens to people who travel by car.

59.I don't think it's right to ______ (杀) animals.

60.Lucy was ______ (发狂的) when she heard Michael Jackson's death.

61.People need to help the animals live in ______ (安宁，和平).

62.Tell me the ______ (原因) why you were late.

63.If I have ______ (足够的) money, I'll buy a big house.

64.Our ______ (政府) is working hard to save pandas.

65.All of us should love our beautiful ______ (大自然).