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30 tháng 8 2020

e chỉ biết mỗi đề bài thôi chứ bài này khó lắm

Đề bài:

Ann và Bob có một số lượng lớn đồ ngọt mà họ đồng ý chia sẻ theo các quy tắc sau. Ann sẽ lấy một viên ngọt, sau đó Bob sẽ lấy hai viên kẹo và sau đó thay phiên nhau, mỗi người lấy một viên ngọt hơn những gì người kia vừa lấy. Khi số kẹo còn lại ít hơn số kẹo sẽ lấy ở lượt đó thì người cuối cùng lấy hết số kẹo còn lại. Trước sự ngạc nhiên của họ, khi họ ăn xong, họ đều có số kẹo như nhau

Họ quyết định thực hiện chia lại lần nữa, nhưng lần này, trước tiên, họ chia kẹo thành hai đống bằng nhau và sau đó lặp lại quy trình trên với mỗi đống. Ann đi đầu tiên cả hai lần. Họ vẫn kết thúc với cùng một số lượng kẹo mỗi loại.

Số lượng đồ ngọt tối đa ít hơn 1000 mà họ có thể bắt đầu bằng là bao nhiêu?

Giúp mình làm các câu hỏi này nha: (càng nhiều càng tốt!)1. Tiffany and Ryan deposit some amount in a joint bank account such that total balance remains 500. If  amount deposited by Tiffany and Ryan are plotted as a linear graph on xy plane, find the area between this graph and the coordinate axis.2.A group of workers is paving a road. If they pave 200m of the road a day, they will need 3 more days. to finish the work. If they pave 240m of the road a day, they will finish the work...
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Giúp mình làm các câu hỏi này nha: (càng nhiều càng tốt!)

1. Tiffany and Ryan deposit some amount in a joint bank account such that total balance remains 500. If  amount deposited by Tiffany and Ryan are plotted as a linear graph on xy plane, find the area between this graph and the coordinate axis.

2.A group of workers is paving a road. If they pave 200m of the road a day, they will need 3 more days. to finish the work. If they pave 240m of the road a day, they will finish the work 2 days in advance. How long is the road, in meter?

3. Mrs. Darlie has a silver ring, a golden ring and a diamond ring. She put them on her left hand. Each ring can be on any of the five fingers. When there are two or three rings on the same finger, if the order in which they are put is different, that couunt as a different way. How many different ways for Lea to put these rings?

4. Let P(x) be a polynomial with degree 3 such that P(1)=3, P(2)=3, P(3)=7, P(4)=21. Find the value of P(5).

1

4. Call that polynomial P (x) = ax3 + bx2 + cx + d

We have P(1)=a+b+c+d=3   (1)

P(2)=8a+4b+2c+d=3   (2)

P(3)=27a+9b+3c+d  =7       (3) 

P(4)=64a+16b+4c+d     =21    (4)

From (1) and  (2) =>  7a+3b+c=0

From (1) and  (4)  => 63a+15b+3c=18

=> 12b+6c=-18  => 2b+c=-3

From (1) and  (3) =>26a+8b+2c=4=> 13a+4b+c=2

=> 13a+2b=5

It is possible

Giúp mình làm các câu hỏi này nha: (càng nhiều càng tốt!)1. Tiffany and Ryan deposit some amount in a joint bank account such that total balance remains 500. If  amount deposited by Tiffany and Ryan are plotted as a linear graph on xy plane, find the area between this graph and the coordinate axis.2.A group of workers is paving a road. If they pave 200m of the road a day, they will need 3 more days. to finish the work. If they pave 240m of the road a day, they will finish the work...
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Giúp mình làm các câu hỏi này nha: (càng nhiều càng tốt!)

1. Tiffany and Ryan deposit some amount in a joint bank account such that total balance remains 500. If  amount deposited by Tiffany and Ryan are plotted as a linear graph on xy plane, find the area between this graph and the coordinate axis.

2.A group of workers is paving a road. If they pave 200m of the road a day, they will need 3 more days. to finish the work. If they pave 240m of the road a day, they will finish the work 2 days in advance. How long is the road, in meter?

3. Mrs. Darlie has a silver ring, a golden ring and a diamond ring. She put them on her left hand. Each ring can be on any of the five fingers. When there are two or three rings on the same finger, if the order in which they are put is different, that couunt as a different way. How many different ways for Lea to put these rings?

4. Let P(x) be a polynomial with degree 3 such that P(1)=3, P(2)=3, P(3)=7, P(4)=21. Find the value of P(5).

2
1. Tiffany và Ryan gửi một số tiền vào tài khoản ngân hàng chung sao cho tổng số dư còn lại 500. Nếu số tiền được gửi bởi Tiffany và Ryan được vẽ dưới dạng biểu đồ tuyến tính trên mặt phẳng xy, hãy tìm khu vực giữa biểu đồ này và trục tọa độ. 2.Một nhóm công nhân đang mở đường. Nếu họ mở 200m đường mỗi ngày, họ sẽ cần thêm 3 ngày nữa. để hoàn thành công việc. Nếu họ mở 240m đường mỗi ngày, họ sẽ hoàn thành công việc trước 2 ngày. Bao lâu là đường, tính bằng mét? 3. Bà Darlie có một chiếc nhẫn bạc, một chiếc nhẫn vàng và một chiếc nhẫn kim cương. Cô đặt chúng lên tay trái. Mỗi chiếc nhẫn có thể nằm trên bất kỳ ngón tay nào trong năm ngón tay. Khi có hai hoặc ba chiếc nhẫn trên cùng một ngón tay, nếu thứ tự chúng được đặt khác nhau, thì đó là một cách khác nhau. Có bao nhiêu cách khác nhau để Lea đặt những chiếc nhẫn này? 4. Đặt P (x) là một đa thức có bậc 3 sao cho P (1) = 3, P (2) = 3, P (3) = 7, P (4) = 21. Tìm giá trị của P (5).
21 tháng 6 2019

#)Góp ý :

Mấy câu như thế này thì bạn nên lên Discuss with Math You - MathYou hỏi nhé ^^

Vì web này chuyên cho học sinh giải toán tiếng anh nên lên đây hỏi sẽ tiện hơn

Choose the correct word marked A,B, or C to fill each blank in the following passage.(Why)There are many reasons (1) ____ it is important to have a hobby. First of all, a hobby can be a remedy for your (2) ____. Because it is the activity you choose for yourself, it will always give you pleasure and (3) ____ you relax. Even if you just spend a little time enjoying your hobby, you can see the difference (4) ____ your spirit. Second, some hobbies can also (5) ____ you financially. Many old people...
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Choose the correct word marked A,B, or C to fill each blank in the following passage.(Why)

There are many reasons (1) ____ it is important to have a hobby. First of all, a hobby can be a remedy for your (2) ____. Because it is the activity you choose for yourself, it will always give you pleasure and (3) ____ you relax. Even if you just spend a little time enjoying your hobby, you can see the difference (4) ____ your spirit. Second, some hobbies can also (5) ____ you financially. Many old people enjoy gardening. They grow a lot of trees and vegertable, so they can sell them for some money. In (6) ____, a hobby can help you connect with other people. If you like colecting stamps, you can (7) ____ a stamp club to share your albums with other collectors. If your hobby is caving eggshells, you can give your products to your friends (8) ____ gifts.

1. A.for B. why C.because

2. A.happiness B.pain C.tiredness

3. A.help B. have C. do

4. A. for B. in C. on

5. A.harm B.give C.benefit

6. A. addition B. general C.conclusion

7. A.take part B.go C. join

8. A. like B.as C.for

2
17 tháng 9 2018

1.a

2.c

3.a

4.b

5.c

6.a

7.c

8.b

17 tháng 9 2018

Cho mình sorry. 

1.b mới đúng!!!

ai dịch được câu này mình cho 4 likeHome »Van describe»Ta her motherIn our family, because I was the youngest, so everyone loves you run out of ink, but she was close, take care of you most.This year, her mother nearly forty-one years old. With a slim, slender, has highlighted the beauty of mother with maternal gentle, silky black hair that was long lumbar mother tucked up neatly when the road. His eyes watched her mother pick with eyes always affectionately close. Mother oval face...
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ai dịch được câu này mình cho 4 like

Home »Van describe»
Ta her mother

In our family, because I was the youngest, so everyone loves you run out of ink, but she was close, take care of you most.

This year, her mother nearly forty-one years old. With a slim, slender, has highlighted the beauty of mother with maternal gentle, silky black hair that was long lumbar mother tucked up neatly when the road. His eyes watched her mother pick with eyes always affectionately close. Mother oval face with a white skin. Thin lips red under high nose looks delicate making increasingly seen as beautiful. When mother laugh look florid, just blooming roses morning. Mother hands plump, fair had raised, mentoring children from an early age they just womb. The voice of a passionate mother, while smoothly as ru language, such as birds chirped at robins morning. Her mother sewing and embroidery is very beautiful, especially the long dress, casual or dressed mother of neat, as a high school teacher mother wore a long coat and sew by her mother looks graceful, elegant.

At home, she was in charge of housework. Mother handed to me the light work such as sweeping, folding clothes ... And three, the mother extra laundry, cleaning the house clean, occasionally she bought flowers for distillation at the beautiful lounge. Each arrival mother always warmly welcomed, invited guests fruit plate and cool water. Morning wake up early mother to prepare the breakfast for the entire family, to the two brothers went to school on time to school. When you sick mother to wake during the night to take care of. In the evening, she spends about thirty minutes to lecture me, then she sits down to marking, lesson plans to prepare for tomorrow's class at school ... Mother is merciful, compassionate, mother of her class watch students like his children, also coached loving mother toner should be a lot of students love. When you foul, I just remind, not scolded and has not hit me ever.

Her mother is worth you, I always loved the proud mother and a son-mother. Whenever mother hugging, lying in the womb I feel warm. In my heart, she was all, she is the most wonderful fairy in my life ... I was looking forward to their big hurry to make wise harder. I promise to keep working hard and trying to do well to repay his mother and teachers were taught, so who raised children. Mom, I love you too!

khi dịch ra hay lắm đó

1
26 tháng 10 2015

hình như là thế này 

Trong gia đình của chúng tôi, bởi vì tôi là người trẻ nhất, vì vậy tất cả mọi người yêu thương bạn hết mực, nhưng cô đã được đóng, chăm sóc của bạn nhất.

Năm nay, mẹ cô gần bốn mươi mốt tuổi. Với một mỏng, thanh mảnh, đã làm nổi bật vẻ đẹp của người mẹ với nhẹ nhàng, mái tóc đen mượt mà bà mẹ là mẹ thắt lưng dài thắt lên gọn gàng khi con đường. Mắt anh nhìn mẹ cô chọn với đôi mắt luôn trìu mến gần gũi. Mẹ khuôn mặt hình bầu dục với một làn da trắng. Đôi môi mỏng đỏ mũi cao trông tinh tế tỉ càng bị coi là đẹp. Khi mẹ cười trông tươi như hoa, chỉ nở vào buổi sáng hoa hồng. Mẹ tay tròn trĩnh, công bằng đã được nâng lên, cố vấn trẻ em từ khi còn nhỏ họ chỉ tử cung. Giọng nói của một người mẹ đam mê, trong khi êm như tiếng ru, như tiếng chim líu lo vào buổi sáng chim cổ đỏ. May mẹ cô và thêu rất đẹp, đặc biệt là những chiếc váy dài, không thường xuyên hoặc mẹ mặc quần áo gọn gàng, như một người mẹ giáo viên trung học mặc một chiếc áo khoác dài và may bởi mẹ cô trông duyên dáng, thanh lịch.

Ở nhà, cô ấy là người phụ trách công việc gia đình. Mẹ trao cho tôi những công việc nhẹ nhàng như quét dọn, quần áo gấp ... Và ba, mẹ thêm giặt ủi, dọn dẹp nhà cửa sạch sẽ, thỉnh thoảng cô ấy mua hoa chưng cất tại phòng đẹp. Mỗi mẹ đến luôn chào đón nồng nhiệt, tấm mời khách trái cây và nước mát. Buổi sáng thức dậy sớm mẹ để chuẩn bị bữa ăn sáng cho cả gia đình, cho hai anh em đi học đúng giờ để học. Khi bạn ốm mẹ phải thức suốt đêm để chăm sóc. Vào buổi tối, cô dành khoảng ba mươi phút để giảng bài cho tôi, sau đó cô ngồi xuống để đánh dấu, kế hoạch bài học để chuẩn bị cho lớp ngày mai ở trường ... Mẹ có lòng thương xót, từ bi, mẹ của cô sinh viên lớp hồ như con của mình, cũng huấn luyện yêu thương mẹ mực nên được rất nhiều học sinh tình yêu. Khi bạn phạm lỗi, tôi chỉ nhắc nhở, không la mắng tôi và đã không đánh tôi bao giờ.

Mẹ cô là giá trị bạn, tôi luôn luôn yêu thương mẹ tự hào và một con trai mẹ. Bất cứ khi nào mẹ ôm, nằm trong bụng mẹ tôi cảm thấy ấm áp. Trong trái tim tôi, cô ấy là tất cả, cô là cổ tích tuyệt vời nhất trong cuộc đời của tôi ... Tôi đã mong muốn vội vàng lớn của họ để làm cho khôn ngoan hơn. Tôi hứa sẽ tiếp tục làm việc chăm chỉ và cố gắng làm tốt để trả nợ mẹ và giáo viên của ông đã dạy, vì vậy người nuôi dạy các con.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 1 to 10. Reading to oneself is a modern activity which was almost unknown to the scholars of the classical and medieval worlds, while during the fifteenth century the term "reading" undoubtedly meant reading aloud. Only during the nineteenth century did silent reading become commonplace. One should be wary, however, of assuming that silent reading came...
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Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 1 to 10.

Reading to oneself is a modern activity which was almost unknown to the scholars of the classical and medieval worlds, while during the fifteenth century the term "reading" undoubtedly meant reading aloud. Only during the nineteenth century did silent reading become commonplace.

One should be wary, however, of assuming that silent reading came about simply because reading aloud was a distraction to others. Examinations of factors related to the historical development of silent reading have revealed that it became the usual mode of reading for most adults mainly because the tasks themselves changed in character.

The last century saw a steady gradual increase in literacy and thus in the number of readers. As the number of readers increased, the number of potential listeners declined and thus there was some reduction in the need to read aloud. As reading for the benefit of listeners grew less common, so came the flourishing of reading as a private activity in such public places as libraries, railway carriages and offices, where reading aloud would cause distraction to other readers.

Towards the end of the century, there was still considerable argument over whether books should be used for information or treated respectfully and over whether the reading of materials such as newspapers was in some way mentally weakening. Indeed, this argument remains with us still in education. However, whatever its virtues, the old shared literacy culture had gone and was replaced by the printed mass media on the one hand and by books and periodicals for a specialised readership on the other.

By the end of the twentieth century, students were being recommended to adopt attitudes to books and to use reading skills which were inappropriate, if not impossible, for the oral reader. The social, cultural and technological changes in the century had greatly altered what the term "reading" implied.

Question 1: Reading aloud was more common in the medieval world because:

A. people relied on reading for entertainment

B. silent reading had not been discovered

C. there were few places available for private reading

D. few people could read to themselves

Question 2: The word "commonplace" in the first paragraph mostly means:

A. for everybody's use B. most preferable

C. attracting attention D. widely used

Question 3: The development of silent reading during the last century indicated

A. an increase in the average age of readers

B. an increase in the number of books

C. a change in the nature of reading

D. a change in the status of literate people

Question 4: Silent reading, especially in public places, flourished mainly because of:

A. the decreasing need to read aloud

B. the development of libraries

C. the increase in literacy

D. the decreasing number of listeners

Question 5 It can be inferred that the emergence of the mass media and specialized reading materials was an indication of .

A. a decline of standards of literacy

B. a change in the readers' interest

C. an alteration in educationalists ’attitudes

D. an improvement of printing techniques.

Question 6: The phrase "a specialized readership" in paragraph 4 mostly means:

A. a requirement for readers in a particular area of knowledge

B. a limited number of readers in a particular area of knowledge

C. a reading volume for particular professionals

D. a status for readers specialized in mass media

Question 7: The phrase “oral reader" in the last paragraph mostly means a person who:

A. is good at public speaking

B. practices reading to an audience

C. takes part in an audition

D. is interested in spoken language

Question 8: All of the following might be the factors that affected the continuation of the old shared literacy culture EXCEPT .

A. the inappropriate reading skills B. the specialized readership

C. the diversity of reading materials D. the printed mass media

Question 9: Which of the following statements is NOT TRUE according to the passage?

A. Reading aloud was more common in the past than it is today.

B. Not all printed mass media was appropriate for reading aloud.

C. The decline of reading aloud was wholly due to its distracting effect.

D. The change in reading habits was partly due to the social, cultural and technological changes.

Question 10: The writer of this passage is attempting to .

A. explain how reading habits have developed

B. change people's attitudes to reading

C. show how reading methods have improved

D. encourage the growth of reading.

3

Bạn đăng trên box Anh nhé,Bạn đang đăng trên box Toán đấy

2 tháng 10 2019

Tham khảo

Câu 1. Đáp án D few people could read to themselves

Thông tin ở đầu đoạn 1:”Reading to………….reading aloud”. (Đọc thầm 1 mình là 1 hoạt động hiện đại mà hầu như không hề được biết đến đối với các học giả thời cổ điển và thời trung cổ,trong khi vào thế kỷ 15,nói đến đọc nghĩa là đọc lớn tiếng.)

Câu 2. Đáp án D widely used

Định nghĩa của commonplace: được sử dung rộng rãi,phổ biến thông dụng

Câu 3. Đáp án C a change in the nature of reading

Thông tin ở 2 đoạn 2:”examination of factors………….in character”. (Sự khỏa sát các yếu tố liên quan đến sự phát triển có tính lịch sử của việc đọc thầm đã trở thành lối đọc thông dụng đối với đa số người lớn vì bản thân việc đọc đã thay đổi bản chất.)

Câu 4. Đáp án C the increase in literacy

Thông tin ở đầu đoạn 3:”The lát century saw…………………to read aloud”: (Thế kỷ vừa qua chứng kiến 1 sự gia tăng, số người đọc tiềm năng giảm bớt và do vậy nhu cầu đọc lớn tiếng cũng giảm đi.)

Câu 5. Đáp án A a decline of standards of literacy

Thông tin ở cuối đoạn 4:”However,………..on the other”: Tuy nhiên dù lợi ích của việc đọc là gì đi nữa,thì cái nền văn hóa chia sẻ tri thức của ngày xưa cũng đã biến mất và bị thay thế bởi 1 nền báo chí và 1 bên là sách vở và các ấn phẩm định kỳ dành cho các độc giả chuyên ngành

Câu 6. Đáp án B a limited number of readers in a particular area of knowledge

Số đọc giả có giới hạn chuyên về 1 ngành kiến thức riêng biệt

Câu 7. Đáp án B practises reading to an audience (Đọc cho 1 số thính giả nghe)
Câu 8. Đáp án A the inappropriate reading skills (Kỹ năng đọc không phù hợp)
Câu 9. Đáp án C

The decline of reading aloud was wholly due to its distracting effect. Sự suy giảm việc đọc lớn tiếng la do tác dụng làm phiền người khác của nó

Câu 10. Đáp án A explain how reading habits have developed

Tác giả đã cố giải thích thói quen đọc đã thay đổi như thế nào

11. The teenagers aren’t buying that model these days. A. That model isn’t being bought by the teenagers these days. B. That model isn’t bought these days by the teenagers. C. On these days that model isn’t being bought due to the teenagers. D. Because of that model isn’t being bought these days by the teenagers 12. People say that he is the most experienced teacher of English. A. He is said to be the most experienced teacher of English. B. He is said the most experienced teacher of...
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11. The teenagers aren’t buying that model these days.

A. That model isn’t being bought by the teenagers these days.

B. That model isn’t bought these days by the teenagers.

C. On these days that model isn’t being bought due to the teenagers.

D. Because of that model isn’t being bought these days by the teenagers

12. People say that he is the most experienced teacher of English.

A. He is said to be the most experienced teacher of English.

B. He is said the most experienced teacher of English.

C. He said the teacher of English is most experienced.

D. That he is the most experienced teacher of English is said by people.

13. People believe that he is a good teacher.

A. It is believed that he was a good teacher. B. He is believed to be a good teacher.

C. They were really believed he is a good teacher. D. He is believed to have been a good teacher.

14. It is thought that he has died a natural death.

A. He is thought to have died a natural death. B. He is thought to be dying a natural death.

C. He is thought to have been dying a natural death. D. He is thought to die a natural death.

15. The coach said, “It’s time for you to go home, boys!”

A. The coach told the boys that it was time for you to go home.

B. The coach tells the boys that it was time for them to go home.

C. The coach told the boys that it is time for them to go home.

D. The coach told the boys that it was time for them to go home.

16.“Why don’t you go with me?” she asked me.

A. He asked me why I don’t go with him. B. He asked me why didn’t I go with him.

C. He asked me why I didn’t go with him. D. He asked me why he didn’t go with me.

17. Why don’t we recycle bottles and cans?

A. We must recycle bottles and cans, mustn’t we? B. What do we recycle bottles and cans for?

C. Shall we recycle bottles and cans? D. How can we recycle bottles and cans?

18. “Why don’t you use the new car, Mr Son?” said Nam.

A. Nam made Mr Son to use the new car. B. Nam asked Mr Son not to use the new car.

C. Nam suggested that Mr Son use the new car. D. Nam suggested that Mr Son uses the new car.

19“Why don’t you use the new car, Mr. Son?” said Nam

A. Nam made Mr. Son to use the new car. B. Nam asked Mr. Son not to use the new car.

C. Nam suggested that Mr. Son use the new car. D. Nam suggested that Mr. Son uses the new car.

20.“You should not lend Susan any more money, Linda” said Nancy.

A. Nancy advised Susan not to borrow any more money from Linda.

B. Nancy advised Linda not to lend Susan any more money.

C. Linda advised Susan not to lend Linda any more money.

D. Nancy advised Linda to lend Susan some more money.

1
3 tháng 3 2020

11. The teenagers aren’t buying that model these days.

A. That model isn’t being bought by the teenagers these days.

B. That model isn’t bought these days by the teenagers.

C. On these days that model isn’t being bought due to the teenagers.

D. Because of that model isn’t being bought these days by the teenagers

12. People say that he is the most experienced teacher of English.

A. He is said to be the most experienced teacher of English.

B. He is said the most experienced teacher of English.

C. He said the teacher of English is most experienced.

D. That he is the most experienced teacher of English is said by people.

13. People believe that he is a good teacher.

A. It is believed that he was a good teacher. B. He is believed to be a good teacher.

C. They were really believed he is a good teacher. D. He is believed to have been a good teacher.

14. It is thought that he has died a natural death.

A. He is thought to have died a natural death. B. He is thought to be dying a natural death.

C. He is thought to have been dying a natural death. D. He is thought to die a natural death.

15. The coach said, “It’s time for you to go home, boys!”

A. The coach told the boys that it was time for you to go home.

B. The coach tells the boys that it was time for them to go home.

C. The coach told the boys that it is time for them to go home.

D. The coach told the boys that it was time for them to go home.

16.“Why don’t you go with me?” she asked me.

A. He asked me why I don’t go with him. B. He asked me why didn’t I go with him.

C. He asked me why I didn’t go with him. D. He asked me why he didn’t go with me.

17. Why don’t we recycle bottles and cans?

A. We must recycle bottles and cans, mustn’t we? B. What do we recycle bottles and cans for?

C. Shall we recycle bottles and cans? D. How can we recycle bottles and cans?

18. “Why don’t you use the new car, Mr Son?” said Nam.

A. Nam made Mr Son to use the new car. B. Nam asked Mr Son not to use the new car.

C. Nam suggested that Mr Son use the new car. D. Nam suggested that Mr Son uses the new car.

19“Why don’t you use the new car, Mr. Son?” said Nam

A. Nam made Mr. Son to use the new car. B. Nam asked Mr. Son not to use the new car.

C. Nam suggested that Mr. Son use the new car. D. Nam suggested that Mr. Son uses the new car.

20.“You should not lend Susan any more money, Linda” said Nancy.

A. Nancy advised Susan not to borrow any more money from Linda.

B. Nancy advised Linda not to lend Susan any more money.

C. Linda advised Susan not to lend Linda any more money.

D. Nancy advised Linda to lend Susan some more money.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 32 to 41. Plants and animals will find it difficult to escape from or adjust to the effects of global warming. Scientists have already observed shifts in the lifecycles of many plants and animals, such as flowers blooming earlier and birds hatching earlier in the spring. Many species have begun shifting where they live or their annual migration...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 32 to 41.

Plants and animals will find it difficult to escape from or adjust to the effects of global warming. Scientists have already observed shifts in the lifecycles of many plants and animals, such as flowers blooming earlier and birds hatching earlier in the spring. Many species have begun shifting where they live or their annual migration patterns due to warmer temperatures.
With further warming, animals will tend to migrate to ward the poles and up mountainsides toward higher elevations. Plants will also attempt to shift their ranges, seeking new areas as old habitats grow too warm. In many places, however, human development will prevent these shifts. Species that find cities or farmland blocking their way north or south may become extinct. Species living in unique ecosystems, such as those found in polar and mountaintop regions, are especially at risk because migration to new habitats is not possible. For example, polar bears and marine mammals in the Arctic are already threatened by dwindling sea ice but have nowhere farther north to go.
Projecting species extinction due to global warming is extremely difficult. Some scientists have estimated that 20 to 50 percent of species could be committed to extinction with 2 to 3 Celsius degrees of further warming. The rate of warming, not just the magnitude, is extremely important for plants and animals. Some species and even entire ecosystems, such as certain types of forest, may not be able to adjust quickly enough and may disappear.
Ocean ecosystems, especially fragile ones like coral reefs, will also be affected by global warming. Warmer ocean temperatures can cause coral to “bleach”, a state which if prolonged will lead to the death of the coral. Scientists estimate that even 1 Celsius degree of additional warming could lead to widespread bleaching and death of coral reefs around the world. Also, increasing carbon dioxide in the atmosphere enters the ocean and increases the acidity of ocean waters. This acidification further stresses ocean ecosystems.

From "Global Warming" by Michael Mastrandrea an d Stephen H. Schneider

Scientists have observed that warmer temperatures in the spring cause flowers to ______.

  • A. bloom earlier
  • B. die instantly
  • C. become lighter
  • D. lose color
  • Câu 2:

    According to paragraph 2, when their habitats grow warmer, animals tend to move ______.

    • A. toward the North Pole and down mountainsides toward lower elevations
    • B. toward the poles and up mountainsides toward higher elevations
    • C. south-eastwards and down mountainsides toward lower elevations
    • D. north-westwards and up mountainsides toward higher elevations
  • Câu 3:

    The pronoun “those” in paragraph 2 refers to ______.

    • A. areas
    • B. habitats
    • C. species
    • D. ecosystems
  • Câu 4:

    The phrase “dwindling sea ice” in paragraph 2 refers to ______.

    • A. the cold ice in the Arctic
    • B. the violent Arctic Ocean
    • C. the melting ice in the Arctic
    • D. the frozen water in the Arctic
  • Câu 5:

    It is mentioned in the passage that if the global temperature rose by 2 or 3 Celsius degrees, ______.

    • A. half of the earth’s surface would be flooded
    • B. water supply would decrease by 50 percent
    • C. the sea level would rise by 20 centimeters
    • D. 20 to 50 percent of species could become extinct
  • Câu 6:

    According to the passage, if some species are not able to adjust quickly to warmer temperatures, ______.

    • A. they will certainly need water
    • B. they can begin to develop
    • C. they may be endangered
    • D. they move to tropical forests
  • Câu 7:

    The word “fragile” in paragraph 4 most probably means ______.

    • A. pretty hard
    • B. easily damaged
    • C. rather strong
    • D. very large
  • Câu 8:

    The bleaching of coral reefs as mentioned in paragraph 4 indicates ______.

    • A. the slow death of coral reefs
    • B. the blooming phase of sea weeds
    • C. the quick growth of marine mammals
    • D. the water absorption of coral reefs
  • Câu 9:

    The level of acidity in the ocean is increased by ______.

    • A. the loss of acidity in the atmosphere around the earth
    • B. the decrease of acidity of the pole waters
    • C. the extinction of species in coastal areas
    • D. the rising amount of carbon dioxide entering the ocean
  • Câu 10:

    What does the passage mainly discuss?

    • A. Global warming and possible solutions
    • B. Global warming and species migration
    • C. Influence of climate changes on human lifestyles
    • D. Effects of global warming on animals and plants
2
2 tháng 10 2019

Ummm bạn đăng sang bên tiếng anh nhé :>

2 tháng 10 2019

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