The fish smells terrible. 查看更多

 

题目列表(包括答案和解析)

The earth is our home;we must take Care of it. This means keeping the land,air and water   clean.
Pollution is a dirty word. To pollute means to make things unfit(不合适的)or unclean to use. Pollution comes in many ways. We see it,smell it,taste it and drink it. Pollution is beginning to threaten(威胁)our health,or happiness and our life.
Man. has been polluting the earth from the time he first made fire,washed his clothes in the river and threw his waste on the ground. When land was used up or water became dirty. Men moved to another place. At first the problem was not so serious because there was plenty of clean air,land and water. There weren't so many people then and their wants(需求)were fewer. All the dirty things could be absorbed(吸收)by nature and soon. covered over(恢复), But this is no longer true. The increase of population(人口增长)and the development of industry have changed that. Man is slowly polluting. his environment.
Through the use of poison(农药),mall has polluted land! killing the animal. By putting dirty water and chemicals into rivers and lakes we have polluted our drinking water,killing the fish.
Our increasing population is part of the. problem. More people more waste.
Where is this all to end? Are we turning the world into a big rubbish dump,or is there any hope that we can get rid of(摆脱)the pollution ?Luckily,millions of people have been warned of the danger of pollution. Large numbers of people are now working hard to bring pollution under
【小题1】Which sentence is WRONG?
A.We live on the earth,so we should look after it.
B.To pollute means to make air ,water and land unfit for use.
C.All the waste produced by modem industry can be absorbed.
D.Man is now fighting against different kinds of pollution.
【小题2】In this passage the word "chemicals" means
A.化学B.化学物质C.化学的D.医学的
【小题3】 From the sentences "More people more waste",we know that _______.
A.because of the increase of population and the development of industry,more and more waste is produced
B.we need more people,not more waste
C.there isn't any hope that we can get rid of the pollution
D.more people have been warned of the danger of more waste.
【小题4】From the passage we can know that now man_______.
A.doesn't know how to control pollution
B.still doesn't realize how serious pollution is
C.is doing something to control pollution
D.begins to understand the pollution

查看答案和解析>>

Do you know why different animals or pests have their special colours? Colours in them seem to be mainly used to protect themselves.

Some birds like eating locusts(蝗虫), but birds cannot easily catch them. Why? It is because locusts change their colurs with the changes of the colours of crops .When crops are green, locusts look green .But as the harvest time comes, locusts change into the same brown colour as crops have .Some other pests whose colours are different from plants are easily found and eaten by others .So they have to hide themselves for lives and appear only at night.

If you study the animals’ life, you’ll find the main use of colours is to protect themselves .Bears, lions and other animals move quietly through forests .They cannot be easily seen by hunters because their colours are much like the trees.

Colours are useful not only on the land , but also in the sea .A kind of fish in the sea can give out a kind of black liquid(液体)when the fish face danger. The liquid spreads over quickly, so they cannot be found by their enemies and can quickly swim away. That is why they can live safely though they are not strong at all.

1.From the passage, we can know that .

A.locusts are big animals

B.locusts are easily found by birds

C.locusts are dangerous to their enemies

D.locusts can change their colours to protect themselves

2.Those pests with different colours from plants have to to keep out of danger.

A.change their colours

B.hide in the day time and appear at night

C.move quietly

D.hide at night and appear in the day time

3.Bears and lions can keep safe because .

A.their colours are much like the trees

B.they move quickly

C.they are very strong

D.they live in forests

4.According to the passage, the fish can keep safe because .

A.they can change their colours

B.they can give out a kind of black liquid

C.they are strong enough

D.they swim faster than any other fish

5.Which is the best title for this passage?

A.The colours of the seasons

B.Animals on the land and in the sea

C.The main use of colours for animals and pests

D.How to keep safe in the sea

 

查看答案和解析>>

It was a Sunday afternoon. It was very ____and nobody wanted to stay at home. Mike decided to go swimming in the river. His brother,Jim.wanted to go with him.

  “ _______him with you, Mike” said their father.” he will do what you say, I think.”

  They got ____the river quickly. A lot of people were ___in it. Mike told Jim to play in the bank,then he ____into the river. About an hour later, Mike swam to the bank with a fish in his hand. Jim was very _____. He found a bottle and put the fish in it.

   Jim did____except(除了) watching the fish that evening. Suddenly Mike heard Jim ____in the room. He ran to him and asked,” what’s wrong ____you, Jim?”

  “ The fish has died,” Jim said “I thought it was ______. So I took it out of the bottle and put it on the chair, I only wanted it to have a rest.”

1.A.warm       B.hot        C.cool        D.cold

2.A. Carry      B. Bring      C. Take       D. Catch

3.A.to         B.at          C.in           D. For

4.A.washing    B.running     C.resting      D.swimming

5.A.ran        B.walked      C.fell        D.jumped

6.A.happy      B.angry       C.sad        D.sorry

7.A.everything  B.something   C.nothing     D.anything

8.A.singing     B.crying      C.smiling     D.laughing

9.A.with       B.from       C.to          D.on

10.A. Hungry   B.free        C.tired       D. Busy

 

查看答案和解析>>


Mr. White was riding a horse in the rain all the afternoon. When he reached a restaurant, he was all___1___ and cold. He saw a fire(火) in __2__ restaurant and many people sitting __3___ it. He couldn’t get a seat near the fire. He thought hard and soon he had an ___4___. He called out to the waiter,“___5__ some fish to my horse!”The waiter answered,“Horses don’t eat fish.”Mr White said,“___6__ my horse eats fish.”The waiter did as Mr White told him. The people in the restaurant ___7___ very strange and ran out after the waiter. When all the people went out, Mr White sat down at the table ___8__ the fire. When the waiter and the people __9__, they said,“Your horse doesn’t want eat the fish,”Mr White answered, “Put the fish on the table__10___ my horse doesn’t want it. I’ll eat it as soon as I warm up and dry out.”

【小题1】
A.tiredB.hungryC.wetD.angry
【小题2】
A.theB.aC.anD.his
【小题3】
A.onB.roundC.toD.in
【小题4】
A.wayB.ideaC.fireD.seat
【小题5】
A.BringB.HaveC.TakeD.Catch
【小题6】
A.AndB.ButC.BecauseD.Or
【小题7】
A.thoughtB.areC.feltD.had
【小题8】
A.nearB.far awayC.onD.under
【小题9】
A.returnB.came backC.looked aroundD.went away
【小题10】
A.whenB.ifC.andD.but

查看答案和解析>>

Most animals protect(保护) their young until they are old enough to take care of themselves. A fish that swims in the rivers of South America protects its young in a very strange way. This fish, a kind of catfish, uses its mouth to keep its babies from danger(危险).

    When this catfish lays(产卵) its eggs, it carries them in its mouth. From what we know, it does not eat during this time. After the eggs hatch(孵化), the fish swims with its young to protect them. It opens its mouth when danger appears(出现), and the tiny fish swim inside. They swim out only when it’s safe again.

    These catfish may have a peculiar way to protect their young, but it seems(好像) to work.

1.The best title(标题) is _____________.

        A. Staying Away From Danger     B. How A Fish Protect Its Young

        C. Laying Eggs                  D. A Cat That Swims

2. The catfish in the story live in _________________.

        A. lakes            B. the sea          C. rivers           D. North America

3.The young fish are ____________________.

        A. tiny         B. large            C. yellow and gold  D. very brave

4.If the young fish were not near their parents, they would be ______________.

        A. safer            B. in greater danger    C. happier      D. less hungry

5. The word “peculiar” in the story means ________________.

        A. easy         B. useless      C. strange      D. dangerous

 

查看答案和解析>>


同步练习册答案