Dolphins live their whole lives in water.But they are not fish.They are mammals （哺乳動物） that live in water.That's why a dolphin comes to the top of the water so often.It has to breathe air.A dolphin's nose isn't easy to be seen.It's just a small hole on top of its head.The hole is called a blowhole （噴水孔）.
A dolphin comes up every half minute or so to breathe.It opens its blowhole and take in air.Then it closes its blowhole and dives under the water again.But a dolphin can stay under the water for six or seven minutes if it has to.It can hold its breath.
A dolphin listens with two ears.It can hear all kinds of noises under water.It can hear small stones rolling.It can hear the sound that fish and other dolphins make.A dolphin's ears may be small，but its mouth is big.It has to be big.It holds almost one hundred teeth.These teeth are all the same shape and size.They are used for catching food，but not for chewing.A dolphin opens its big mouth and seizes a fish firmly between its two rows of teeth.Then it swallows the whole fish.
A dolphin swims very fast.It is said that a dolphin swims faster than anything else in the water.So men are trying to study their skin and shape.They are learning ways to make boats go faster through the water.Most people believe that dolphins are very clever.Some scientists say they are cleverer than dogs.But dolphins are not all alike.Some are shy.Some like to show off.Some are clever.Some are a little slow to learn.Some are very friendly.Some like to be left alone.
（1）Do dolphins live on land most of the time？ No.No.
（2）Why does a dolphin come to the top of water？ Because it comes to the top of water to breathe air.Because it comes to the top of water to breathe air.
（3）How long can a dolphin stay under the water？ For six or seven minutes.For six or seven minutes.
（4）What are the dolphin's teeth used for？ They are used for catching food.They are used for catching food.
（5）What do you think of the dolphins？ They are clever and friendly.They are clever and friendly.
【答案】No.；Because it comes to the top of water to breathe air.；For six or seven minutes.；They are used for catching food.；They are clever and friendly.
【解答】
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發(fā)布：2024/4/20 14:35:0組卷：1引用：2難度：0.5
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1．Dear Laura，
Thanks for your message.Yes，I'm having a great time as an （1）estudent in France.I was a bit nervous before I arrived here.But my （2）hfamily is really nice.They go out of their way to make me feel at home.The granddaughter about my age is really kind.She always talks to me in French to help me practise.And you wouldn't believe how quickly my French has （3）i.
My biggest challenge is learning how to do at the dinner table.Things are really different from the way they are at home.For example，you should put your bread on the table （4）iof on your plate.You shouldn't eat anything with your hands except bread，not even fruit!You have to cut it up and （5）eit with a fork.I have to say that it is strange at first，but I'm getting used to it now.
Hope you are having a good school year!發(fā)布：2025/1/30 8:0:1組卷：35引用：3難度：0.5 -
2．閱讀短文，根據(jù)首字母或所給詞的適當(dāng)形式填空，使文章語義通順。
Dear Laura，
Thanks for your message.Yes，I'm having a great time on my exchange program in France.I was a bit nervous before I arrived here，but there was no reason to be.My host family is really nice.They go out of their （1）wto make me feel at home.The grandmother has a teenage granddaughter （2）wis really kind.She always talks to me （3）iFrench to help me practice.My French （4）（improve） quickly since I arrived here! （5）TI still make lots of mistakes，it doesn't worry me as it used to.
Learning how （6）（behave） at the dinner table is a hard part for me.As you can imagine，things are really different from the way they are at home.For example，you shouldn't put your bread on your plate.You （7）（suppose） to put it on the table!Besides，you shouldn't eat anything with your hands except bread.Another thing is that it is very （8）（polite） to say you're full.If you don't want anything else，you should just say， "It was delicious." I find it difficult to remember everything，but I'm （9）（gradual） getting used to it.French customs are not so strange to me any （10）m.
I'll write again soon and tell you more about my life here.Hope you are having a good school year.
Yours，
Lin Yue發(fā)布：2025/1/30 8:0:1組卷：18引用：2難度：0.3 -
3．
Dear Laura，A.For example，you shouldn't put your bread on your plate.
B.I hope to hear from you soon.
C.I'm very comfortable speaking French now.
D.I don't find French customs so strange anymore.
E.Another thing is that it is very impolite to say you're full
F.They go out of their way to make me feel at home.
Thanks for your message .Yes ，I'm having a great time on my student exchange program in France .I was a bit nervous before I arrived here，but there was no reason to be my host family is really nice .（1）.The grandmother has a teenage granddaughter about my age who is really kind.She always talks to me in French to help me practice.And you wouldn't believe how quickly my French has improved!（2）Though I still make lots of mistakes，it doesn't worry me as it used to.
My biggest challenge is learning how to behave at the dinner table.As you can imagine，things are different from the way they are at home.（3）.You're supposed to put it on the table!I thought that was pretty strange at first，but not I'm used to it.You shouldn't eat anything with your hands except bread，not even fruit.You have to cut it up and eat it with a fork.（4）.If you don't want any more food，you should just say，"That was delicious." Also you're not supposed to put your elbows on the table.I have to say that I find it difficult to remember everything，but I'm gradually getting used to it.（5）.
Dear Laura，I'll write again soon and tell you more about my life in France Hope you're having a good school year.
Yours，
Lin Yue發(fā)布：2025/1/30 8:0:1組卷：37引用：2難度：0.4