【題目】A lot of people are interested in sea animals, especially the ones that are beautiful and smart. Although some are wild, and can be deadly, each is also unique in its own way. Whales, sharks and dolphins are the main subjects of sea-animal research, with dolphins standing out from whales and sharks for their friendly behavior with humans. No doubt the desire to learn some interesting things about dolphins has led you to this article, and you too are eager to know more about these sea creatures.

It is sometimes believed that Dolphins have been evolved from land mammals. Among sea mammals, dolphins are the most advanced in intelligence. You may be surprised to learn that they are close relatives of camels and cows. The debate on the origin of the dolphin is an unending one, however. Some believe that they evolved from land-based hoofed (有蹄的) mammals, others believe thattheyevolved from other different kinds of mammals many millions of years ago. There are about 32 types of dolphins that live in salt water, each unique in its color and body shape. Five other types live in fresh water.

A grown-up dolphin eats nearly 20 to 22 kilos of fish every day. The eating habits of dolphins depend on where they live, and on the season. Seasons in which fish are abundant are like party time for dolphins. Dolphins decide how much they are going to eat based on the fat content of the fish available. They’ve a good sense of understanding about their hunger.

The social skills and intelligence of dolphins make them very attractive for zoos and aquariums, where they are often trained to show off their diving skills. Dolphins also communicate with each other by special sounds.

【1】Scientists like to research dolphins mainly because _______.

A. they are friendly to humans B. they have good diving skills

C. they have unique bodies D. they are beautiful and clever

【2】The underlined word "they" in the second paragraph refers to _________?

A. Camels and cows. B. Dolphins.

C. The relatives of dolphins. D. Hoofed mammals.

【3】We can know for sure from the second paragraph that dolphins ___.

A. evolved from land animals B. are the most advanced animals in the world

C. have a close connection with camels D. live only in salt water

【4】Paragraph 3 mainly talks about ___________?

A. How dolphins know they are hungry. B. How much dolphins eat daily.

C. What dolphins like to eat. D. The eating habits of dolphins.

【答案】B選項Dolphins.

【解析】試題分析：文章主要討論海洋動物——海豚。講述了海豚的進(jìn)化，飲食習(xí)慣以及海豚的社交技能和智慧。

【1】推理判斷題。根據(jù)第一段“Whales, sharks and dolphins are the main subjects of sea-animal research, with dolphins standing out from whales and sharks for their friendly behavior with humans.”可知，海豚因為其不同于其它海洋動物的對人們的友好行為，而成為海洋研究的主要話題。故選A。

【2】詞句猜測題。根據(jù)上文The debate on the origin of the dolphin is an unending one, however.可知，對于海豚的起源的辯論一直是一個沒完沒了的話題，下文講述一些人認(rèn)為他們是從有蹄的哺乳動物的進(jìn)化來的，其他人認(rèn)為它是數(shù)百萬前從其它的哺乳動物進(jìn)化來的。因此推斷they指海豚。故選B。

【3】細(xì)節(jié)理解題。根據(jù)第二段You may be surprised to learn that they are close relatives of camels and cows.可知，海豚與駱駝有密切聯(lián)系。故選C。

【4】段落大意題。通讀第三段可知，成年海豚每天吃差不多20到22公斤魚，海豚的飲食習(xí)慣取決于他們生活在哪里以及季節(jié)，海豚根據(jù)可食用的魚的脂肪含量來決定它們要吃多少，他們對饑餓有很好的感覺。因此推斷本段主要講述海豚的飲食習(xí)慣。故選D。

高考中詞義推斷可以是一個單詞的意義推斷，也可以是一個短語或句子的意義推斷，既可以是生詞意義，也可以是熟詞新意；還可以是對替代詞所替代內(nèi)容的判斷。在閱讀理解題中，所考查的詞或短語的意義往往不停留在字面上，要根據(jù)短文提供的語境，通過閱讀上下文，根據(jù)已知的信息或常識來推測尚不熟悉的詞或詞組的含義。例如小題2：

【解題剖析】此題屬于猜測詞義。答案需要看前面的內(nèi)容推斷畫線詞。

【答案定位】根據(jù)上文The debate on the origin of the dolphin is an unending one, however.可知，對于海豚的起源的辯論一直是一個沒完沒了的話題，因此推斷下文講述一些人認(rèn)為他們是從有蹄的哺乳動物的進(jìn)化來的，其他人認(rèn)為它是數(shù)百萬前從其它的哺乳動物進(jìn)化來的。因此推斷they指海豚。

【推理關(guān)系】題干The underlined word "they" in the second paragraph refers to _________?文章內(nèi)容Some believe that they evolved from land-based hoofed (有蹄的) mammals, others believe thattheyevolved from other different kinds of mammals many millions of years ago.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

【題目】Coco【1】 (become) a hit since it was released on Nov. 24, 2017 in China. The story takes place during the Day of the Dead, when the border controls between life and death, and the dead【2】(allow) temporary passage to the land of the living according to Mexican tradition. A young boy【3】(name) Miguel sticks to his musical dream and accidentally makes the trip to a fantastic world of ghosts and skeletons. Although there is【4】 murder and a fatal church-bell-related accident, the afterlife in Coco is a warm and exciting place, more funny【5】 sad, Coco is also one of those Pixar movies that【6】(attempt) a conceptual breakthrough, an application of the bright colors and open emotionalism of modern, mainstream animation to an unlikely zone of experience. It【7】 (success) makes a family-friendly cartoon about death. The【8】(important) of family is both specific and universal,【9】explains the particular beats of Miguel’s story and connects him to viewers regardless of background. Last but not least, the touching music adds to great fun and tenderness. So personally speaking, Coco is really a great animation movie-well worth【10】(see).

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】下面短文中共有10處語言錯誤。請在有錯誤的地方增加、刪除或修改某個單詞。

增加：在缺詞處加一個漏字符號（∧），并在下面寫出該加的詞。

刪除：把多余的詞用斜線（\）劃掉。

注意：1. 每處錯誤及其修改均僅限一詞；

2. 只允許修改10處，多者（從第11處起）不計分。

My English teacher showed to us the movie A Beautiful Mind yesterday. It told a story about professor’s struggle with mental illness. The story was basing on a real professor John Nash’s life. He achieved so many in his life. At last，he won the Nobel Prize, that proved that his great achievements had affect people deeply. John suffered mental illness when he were young, but he refused to take medicine, which could make him thought slowly, so he was working while struggling with his illness. Luckily, his wife supported him all the times. Therefore, John could continue his work. After winning the Nobel Prize, he thanked her wife for the first time.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Like it or not, there will be difficult times in our lives. You might lose your job, fail in your exams or have an illness. 【1】 Here are some ways not to lose hope during difficult times.

1. Have faith.

【2】 No matter how bad the situation is, things will turn out to be good in the end. Several years ago I failed to get my master’s degree. It was a really bad experience. 【3】 It was of much better quality than my previous university. Experiences like this strengthen my belief that having faith is important during difficult times.

2. Be around supportive people.

Going through difficult times is hard, and going through them alone is even harder. You need a group of positive people who can support you. 【4】 If you don’t, my suggestion is to start looking for one. Don’t wait until you need it, because it will be too late by then. You need the community before difficult times come.

3. Help others.

An additional benefit of being in a good community is that it encourages you to think about other people. It pushes you to help others and, therefore, think about other people 【5】 As a result, your situation won’t look as bad as it would be otherwise. Often the situation looks worse than it really is because we give too much attention. Shifting (移開) some of your attention away will put the situation in a better view.

A. Your community helps a lot.

B. Whatever it is, it’s important not to lose hope.

C. I changed my attitude towards failure.

D. In this way you take your focus away from yourself.

E. But I got a scholarship at an overseas university later.

F. You must believe that things will work out well eventually.

G. You should become part of a community that cares for one another.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】改正下面每句話中的一處錯誤。
（1）He whispered me that he was afraid.

（2）Parents react strong to the program of quality education.

（3）Watson failed twice，so he tried the third time.

（4）Sherlock Holmes looked down at the stars in the sky and then asked a question.

（5）The young man tried to cleaning the spot with alcohol，but he failed.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】假定你是李華，擔(dān)任學(xué)校外教Allen的學(xué)生助手。請你給回美國度假的Allen寫一封email，告訴他學(xué)校擴(kuò)建改造后的變化，主要內(nèi)容包括：
1)．重建了教學(xué)樓和實驗樓；
2)．學(xué)生教室設(shè)在二樓和三樓，教師辦公室搬至一樓盡頭；
3)．原來的車庫改建為新食堂。
注意：
1).詞數(shù)100左右；
2)．可適當(dāng)增加細(xì)節(jié)，以使行文連貫；
3)．開頭已為你寫好，不計入總詞數(shù)。
Dear Mr. Allen，
I'm Li Hua, your student assistant.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】閱讀理解
SPECIAL EVENTS THIS WEEKEND
Captain Good Fellow
Do your children enjoy interesting stories, funny games, and exciting dances? Captain Good Fellow will be ready to teach all these things to children of all ages at the City Theatre on Saturday morning at 10:00, Free.
Walking Tour of the Town
Forget your worries on Saturday morning. Take a beautiful walk and learn about local history. Meet at the front entrance of City Hall at 9:30. Wear comfortable shoes!
Films at the Museum
Two European films will be shown Saturday afternoon at the Museum Theatre. See Broken Window at 1:30. The workers will be at 3:45. For further information, call 4987898.
International Picnic
Are you tired of eating the same food every day? Come to Central Park on Saturday and enjoy food from all over the world. Delicious and not expensive. Noon to 5:00 pm.
Take Me out to the Ballgame
It's October, and tonight is your last chance to see the Redbirds this year. Get your tickets at the gate. It might be cold；don't forget sweaters and jackets.
Do You Want to Hear “The Zoo”
“The Zoo”, a popular rock group from Australia, will give their first US concert tomorrow night at 8:00 at Rose Hall, City College.
（1）You can probably eat Chinese, Italian, and Arab food_____.
A.at the front entrance of City Hall
B.at the Ballgame
C.at Central Park on Saturday
D.at 5:00 pm
（2）You can see movies at______.
A.the City College
B.the Museum Theatre
C.the City Theatre
D.the Central Park
（3）If you are going on the Walking Tour, don't forget______.
A.your comfortable shoes
B.your beautiful walk
C.your learning about local history
D.your worries
（4）“The Zoo” is______.
A.a park with lots of animals
B.US concert
C.a music group
D.going to give the concert at 8:00 am
（5）The Redbirds ballgame_______.
A.is in the afternoon
B.is outside
C.is at the gate
D.might be warm

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】Thousands of us struggle with letting go of the pain that was 【1】(cause) by past events and circumstances. Let's face it: none of us is perfect and we all may speak of something【2】could hurt someone else in the process.You can't change【3】past. What you can do though is realizing that we are all humans who make mistakes and then【4】(immediate) make a decision and choose to let go of the wounds.

Firstly, you need to accept【5】has happened since you can't change it. Life always 【6】(try) to teach us new lessons and you need to be alert, study and analyze them. Secondly, make a firm decision to forgive. One of the best blessings is the【7】(choose) to make. You can't go from point A to point B unless you first choose to do it. Lastly, realize that holding on【8】the hurtful emotions will only hurt one person—YOU. Therefore, since you love and value【9】(you), you need to look after yourself. Begin to focus on the idea that we are all humans and could easily make mistakes from time to time. Focus on the "goodness" that is in each of us. This type of focus and self-talk makes it easier【10】(let) go of past hurt and move on.

查看答案和解析>>

科目：高中英語 來源： 題型：

【題目】根據(jù)短文內(nèi)容，從短文后的選項中選出能填入空白處的最佳選項，并在答題卡上將該項涂黑。選項中有兩項為多余選項。
I was ten when I first sat with my grandmother behind the cashier（收銀臺）in her general storeI quickly learned the importance of treating customers politely and saying “thank you．”
At first I was paid in candyI worked every day after school, and during the summer and on weekends and holidays from 8 a．m．to 7 p．m．My father helped me set up a bank account． By the time I was 12, my grandmother thought I had done such a good job that she promoted meto selling cosmetics（化妝品）Ideveloped the ability to look customers directly in the eye．Eventhough I was just a kid, women would ask me such things as “What color do you think I should wear?” I took a real interest in their questions and was able to translate what they wanted into makeup（化妝）ideas．
The job taught me a valuable lesson: tobe a successful salesperson, you didn’t need to be a rocket scientist—you needed to be a great listenerExpect they are no longer women purchasing cosmetics from me; instead, they are kidswho tell me which toys they would like to see designed and developed．
A．Watching my money grow was morerewarding than anything I could have bought．
B．Soon I found myself looking morebeautiful than ever before．
C．Today I still carry that lesson with me:I listen to customers．
D．My grandma’s trust taught me how tohandle responsibility
E．I ended my selling a record amount ofcosmetics．．
F．Before long, she let me sit there bymyself．
G．Later I received 50 cents an hour．

查看答案和解析>>

同步練習(xí)冊答案