任务型阅读(共5小题,每小题2分,计10分)
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 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,scientists 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.
1.The reason for most of the animals to move is __________________.
2.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: __________________.
3.The underlined word “There” in the second paragraph
refers to (指的是)
____________.
4.The salmon comes back to its birthplace in order to __________________.
5.The lobsters begin to move to another place when __________________.