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Giải Bt Sinh 8 (Ngắn Nhất)

Giới thiệu về Giải BT Sinh 8 (ngắn nhất)

Bài 1: Bài mở đầu Bài 2: Cấu tạo cơ thể người Bài 3: Tế bào Bài 4: Mô Bài 5: Thực hành: Quan sát tế bào và mô Bài 6: Phản xạ

Chương 2: Vận động

Bài 7: Bộ xương Bài 8: Cấu tạo và tính chất của xương Bài 9: Cấu tạo và tính chất của cơ Bài 10: Hoạt động của cơ Bài 11: Tiến hóa của hệ vận động Bài 12: Thực hành: Tập sơ cứu và băng bó cho người gãy xương

Chương 3: Tuần hoàn

Bài 13: Máu và môi trường trong cơ thể Bài 14: Bạch cầu – Miễn dịch Bài 15: Đông máu và nguyên tắc truyền máu Bài 16: Tuần hoàn máu và lưu thông bạch huyết Bài 17: Tim và mạch máu Bài 18: Vận chuyển máu qua hệ mạch. Vệ sinh hệ tuần hoàn Bài 19: Thực hành: Sơ cứu cầm máu

Chương 4: Hô hấp

Bài 20: Hô hấp và các cơ quan hô hấp Bài 21: Hoạt động hô hấp Bài 22: Vệ sinh hô hấp Bài 23: Thực hành: Hô hấp nhân tạo

Chương 5: Tiêu hóa

Bài 24: Tiêu hóa và các cơ quan tiêu hóa Bài 25: Tiêu hóa ở khoang miệng Bài 26: Thực hành: Tìm hiểu hoạt động của enzim trong nước bọt Bài 27: Tiêu hóa ở dạ dày Bài 28: Tiêu hóa ở ruột non Bài 29: Hấp thụ chất dinh dưỡng và thải phân Bài 30: Vệ sinh tiêu hóa

Chương 6: Trao đổi chất và năng lượng

Bài 31: Trao đổi chất Bài 32: Chuyển hóa Bài 33: Thân nhiệt Bài 34: Vitamin và muối khoáng Bài 35: Ôn tập học kì 1 Bài 36: Tiêu chuẩn ăn uống. Nguyên tắc lập khẩu phần Bài 37: Thực hành: Tiêu chuẩn một khẩu phần cho trước

Chương 7: Bài tiết

Bài 38: Bài tiết và cấu tạo hệ bài tiết nước tiểu Bài 39: Bài tiết nước tiểu Bài 40: Vệ sinh hệ bài tiết nước tiểu

Chương 8: Da

Bài 41: Cấu tạo và chức năng của da Bài 42: Vệ sinh da

Chương 9: Thần kinh và giác quan

Bài 43: Giới thiệu chung hệ thần kinh Bài 45: Dây thần kinh tủy Bài 46: Trụ não, tiểu não, não trung gian Bài 47: Đại não Bài 48: Hệ thần kinh sinh dưỡng Bài 49: Cơ quan phân tích thị giác Bài 50: Vệ sinh mắt Bài 51: Cơ quan phân tích thính giác Bài 52: Phản xạ không điều kiện và phản xạ có điều kiện Bài 53: Hoạt động cấp cao ở người Bài 54: Vệ sinh hệ thần kinh

Chương 10: Nội tiết

Bài 55: Giới thiệu chung hệ nội tiết Bài 56: Tuyến yên, tuyến giáp Bài 57: Tuyến tụy và tuyến trên thận Bài 58: Tuyến sinh dục Bài 59: Sự điều hòa và phối hợp hoạt động của các tuyến nội tiết

Chương 11: Sinh sản

Bài 60: Cơ quan sinh dục nam Bài 61: Cơ quan sinh dục nữ Bài 62: Thụ tinh, thụ thai và phát triển của thai Bài 63: Cơ sở khoa học của các biện pháp tránh thai Bài 64: Các bệnh lây truyền qua đường sinh dục Bài 65: Đại dịch AIDS – Thảm họa của loài người Bài 66: Ôn tập – Tổng kết

Bt Tiếng Anh 12 Unit 1

I. Phonetics

1. Choose the word with the different pronunciation of the underlined part.

2. Choose the word with the different stress pattern.

11. A. return B. parents C. weekend D. household

12. A. project B. garbage C. message D. disturb

13. A. holiday B. different C. interesting D. important

14. A. afford B. nuclear C. problem D. lifestyle

15. A. solution B. obedient C. confidence D. supportive

16. A. cultural B. entirely C. biologist D. discussion

17. A. envy B. equal C. social D. support

18. A. dominate B. business C. employee D. grandchildren

19. A. traditional B. appliances C. complicated D. convernience

20. A. family B. together C. photograph D. mischievous

II. Vocabulary

1. Choose the word which best fits each gap of the sentence.

21. There’s no place like …………… .

A. house B. home C. home base D. household

22. She was very ……………. during my father’s illness.

A. support B. supporter C. supporting D. supportive

23. Please come ……………… and see us some time. You’re always welcome.

A. to B. away C. round D. about

24. They have responsibility ……………… ensuring that the rules are enforced.

A. on B. for C. in D. with

25. He was always …………… to his father’s wishes when his father was alive.

A. pleased B. interested C. obedient D. disappointed

26. My mother did all the housework …………… her own.

A. by B. on C. for D. with

27. Finally, thanks to their parents’ help, they found the ……………… to that problem.

A. way B. decision C. condition D. solution

28. We are now attending evening classes to ………………. our English and computer skills.

A. study B. learn C. know D. improve

29. Metro is a very cheap place to buy ……………. goods such as washing powder and other cleaning products.

A. home B. house C. household D. home-made

A. act B. acting C. active D. action

2. Choose the word which best fits each gap of the passage.

Gianluca Vinti has a (31) ………….. job at an Italian university, a car, (32) ……………. clothes and a mobile phone. But in reality, Vinti is a boy, who is still living at home at 33 and unashamed of it. “It’s true thatlife at home is easier”, he says. “I have fewer expenses and my mother still (34) …………… my relationship with my family is excellent. Until I see a valid reason for leaving, I’ll say.”

Vinti’s not alone: (35) ………….. recent figures, the number of boys between the ages of 18 and 34 living with their parents has (36) …………… 58.5 percent, up from 51.8 percent seven years ago. The main reason boys are at home long after they’ve become men is financial, but the mother-son relationship (37) ………….. as strong as ever. In Italy, leaving your parents’ home at an early age before(38) ……………. married can lead other people to suspect that (39) …………….. is wrong in the family. The normal time to move out of your parents’ house is (40) ………………. you start your own family.

31. A. teach B. taught C. teacher D. teaching

32. A. suitable B. modern C. fashionable D. convenient

33. A. gets B. brings C. takes D. gives

34. A. so B. despite C. because D. although

35. A. with B. the fact C. in addition D. according to

36. A. had B. gone C. got D. reached

37. A. remains B. seems C. appears D. look likes

38. A. being B. getting C. having D. becoming

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

40. A. why B. that C. when D. where

III. grammar

1. Choose the word or phrase which best fits each gap of the sentence.

41. …………… he spoke slowly, I found it difficult at times to follow his argument.

A. Although B. Despite C. Because D. In spite of

42. He refused to give up work, ……………. he’d won a million pounds.

A. Despite B. however C. as though D. even though

43. By half past ten tomorrow morning, I ………… along the motorway.

A. drive B. am driving C. will drive D. will be driving

44. I asked Gill what time it was but she said she ……………. a watch.

A. isn’t having B. doesn’t have C. didn’t have D. hasn’t had

45. I’ve known him …………… I left high school.

A. when B. since C. until D. during

46. I couldn’t arrive at the airport in time ……………. the traffic was heavy.

A. but B. despite C. because D. in sipte of

47. I’d rather you …………. to her why we can’t go toher birthday party.

A. explained B. to explain C. will explain D. would explain

48. I’d have told you if I ………….. seen the book.

A. have B. had C. would have D. should have

49. We wanted to thank them for what they …………………

A. do B. did C. are doing D. had done

50. I sat near the window whenever I ……………… a bus.

A. take B. took C. has taken D. am taking

2.Choose the word or phrase which best fits each gap of the passage.

It was a cold morning and a solf breeze (51) ………….. in the air. We left the cottage by 8 a.m, after (52) …………… the most beautiful place in England at the early winter. The grass (53) …………… wet and we could smell the fresh air in the morning.

As we (54) ………….. down to the village, the car suddenly (55) …………… . All of us didn’t know what (56) ………….. , as we were in the middle of the forest in a foreign country, two hours away from the departure of our plane back to Portugal.

The car (57) ………… and we had to leave it at the airport. What should we do? We got desperate and let me (58) ……………. you that this was the most stressful day of my life. We walked and walked all a long day under the rain.

Finally we (59) …………… a young man that (60) …………… to London. He was very nice and so helpful, so we decided to sleep in Heathrow.

51. A. danced B. is dancing C. was dancing D. has danced

52. A. had B. having C. had had D. having had

53. A. is B. was C. has D. has been

54. A. went B. were going C. has gone D. had gone

55. A. stopped B. was stopped C. was stopping D. had stopped

56. A. do B. did C. doing D. to do

57. A. rented B. renting C. be rented D. was rented

58. A. tell B. told C. telling D. to tell

59. A. find B. found C. have found D. had found

60. A. went B. was going C. were going D. had gone

IV. reading comprehension

1.Read the passage and choose the best answer.

I might be letting my young son watch too much television. I am certainly watching too many of his programs. They can really be perplexing as they force you to ponder the mysteries of life. For example, when Franklin (the turtle) wanted a pet, his parents didn’t want it to be a frog. They felt that frogs beling in a pond. Isn’t that where turtles belong? And why is it that Little Bear’s animal fritends can all talk and behave like people, but his friend Emily has a dog that can only bark and fetch. Tell me that is n’t a mystery!

And this is gross! The other day we watched a very nice little pig setting up a picnic. One of the foods was a pig ham. Could it have been a soy ham? Is there such a thing? I hope so! Another thing that bothers me: What if Elmo isn’t real? He can’t be a mere puppet! He’s got a better attitude than most people. I just keep wondering. I think we’ll turn off the TVand go out for a walk. Maybe we’ll run into that mouse who dresses well but certainly doesn’t speak as clearly as the average bear.

61. Which word is a synonym of ‘perplexing’?

A. Boring.

B. Confusing.

C. Humorous.

D. Itchy.

62. The author thinks it’s ‘gross’ when a pig

A. has a picnic because pigs are dirty animals.

B. eats soy beans because soy beans give pigs gas.

C. eats ham because ham is too expensive for farm animals.

D. eats ham because ham is made from pigs.

63. The author probably

A. believes that Elmo is a real live creature.

B. wishes that Elmo were a real live creature.

C. feels that Elmo is a very annoying creature.

D. won’t let his son watch Sesame Street.

64. The author is implying that

A. there’s a TV mouse that should speak more clearly.

B. TV mice should not wear good clothes.

C. bears can really speak more clearly than mice.

D. watching television is better than playing outdoors.

65. Which word is a synonym of ‘ponder’?

A. Avoid.

B. Remember.

C. Consider.

D. Hide.

2.Read the passage and choose the best answer.

The American family unit is in the process of change. In the first hall of the 20 th century, there were mainly two types of families: the extended and the nuclear. An extended family includes mother, father, children and some other ralatives, living in the same house. A nuclear family is composed of just parents and children living under the same roof.

As the American economy had progressed from agricultural to industrial one, people were forced to movie to different parts of the country to get good jobs. These jobs were mainly in the large cities. Now, in fact, three-quarters of Amricans live in urban areas which occupy 2,5% of the national total land mass. Of the 118 million in the labour force, only 3 million still work on the farm.

Since moving for better jobs has often divided the extended family, the nuclear family became popular. At present, 55% of the families in the U. S are nuclear families. But besides the two types of traditional family groupings, the family is now being expanded to include a variety other living arrangements because of divorce. There are is an increase in single-parent families, in which a father or mother live with one or more children. Divorce has also led to blended families, which occur when previously married men and women marry again and combine the children from former marriage into a new family. There are also some couples who do not want to have children to form two-person childless families.

66. A nuclear family is one that

A. consists of father, mother and children living in the same house.

B. relatives live with.

C. there are only grandparents, parents and their children living in.

D. is bigger than extended family.

67. Under the same roof means

A. a house with one roof .

B. a house with the roof the same as the wall.

C. in the same building.

D. under the house.

68. The nuclear family becomes more popular because of

A. more divorces.

B. the division of the extended family.

C. fewer jobs in big cities.

D. an increase in single-parent families.

69. How many types of families have there been in the U. S since the first half of the 20 th century?

A. Two. B. Three. C. Four D. Five

70. A blended family is a newly-formed family

A. with the combination of children of the two previously maried father and mother.

B. that has only father or mother living with children.

C. in which there are no children.

D. that there is only one couple living in.

V. use of english

1. Choose the underlined word or phrase in each sentence that needs corecting.

71. It (A) believed that “Men (B) make house (C) and women make (D) home”.

72. Our family (A) is a base (B) from which we can go (C) into the world with (D) confident.

73. (A) During the school year, I’m not allowed (B) to watch television (C) when I have finished my (D) homework.

74. I (A) have been looking (B) for my keys. (C) Did you see them (D) anywhere?

75. (A) Could you (B) tell us (C) a few about (D) your family?

76. (A) In spite of he was (B) very tired, Mr. Brown tried his (C) best (D) to finish his report on time.

77. Nowadays, grandparents can live (A) happy (B) with (C) their children (D) and grandchildren.

78. When Mary’s friends (A) arrived (B) at the station yesterday (C) to see her off, the train (D) left.

79. I (A) met your old (B) English teacher (C) while (D) walked down the street.

80. (A) My daughter attempts (B) passing the (C) entrance examination (D) this year.

3.Choose the correct sentence with the same meaning as the one in italics.

81. Sebastian’s career as a television presenter began five years ago.

A. Sebastian has worked as a television presenter since five years.

B. Sebasrian has worked as a television presenter for five years.

C. Sebastian has been worked as a television presenter for five years.

D. Sebastian worked as a television presenter for five years.

82. Charles live quite near his aunt’s house.

A. Charles doesn’t live a distance from his aunt’s house.

B. Charles doesn’t live away from his aunt’s house.

C. Charles doesn’t live a long way from his aunt’s house.

D. Charles used to live near his aunt’s house.

83. Tom regretted buying the second-hand car.

A. Tom wished he hadn’t bought the second-hand car.

B. Tom wished he hasn’t bought the second-hand car.

C. Tom wished he didn’t bought the second-hand car.

D. Tom wished he wouldn’t buy the second-hand car.

84. She moved to London two years ago.

A. It is two years since she has moved to London.

B. It is two years since she moved to London.

C. It was two years since she moved to London.

D. It was two years since she has moved to London.

85. Although he took a taxi, Bill still arrived late for the correct.

A. In spite of taking a taxi, Bill still arrived late for the correct.

B. Bill still arrived late for the correct despite he took a taxi.

C. In spite of a taxi, Bill still arrived late for the concert.

D. Because he took a taxi, Bill still arrived late for the correct.

86. If he’d had my address with him, he’d have sent me a postcard.

A. He sent me a postcard because he had address with him.

B. He didn’t send me a postcard because he didn’t have my address with him.

C. He didn’t send me a postcard because he doesn’t have my address with him.

D. He didn’t send me a postcard although he had my address with him.

87. Riding a bicycle on the pavement is against the law.

A. You are not allowed to ride a bicycle on the pavement.

B. You are not allowed riding a bicycle on the pavement.

C. You shouldn’t ride a bicycle on the pavement.

D. It is impossible to ride a bicycle on the pavement.

88. They’ll have to cancel the picnic if it rains.

A. The picnic will be cancelled if it rains.

B. The picnic will have to be cancelled if it rains.

C. The picnic must be cancelled if it rains.

D. The picnic will has to be cancelled if it rains.

89. My cousin lost his job two years ago.

A. My cousin has been unemployed for two years.

B. My cousin has been unemployed since two years.

C. My cousin was unemployed for two years.

D. My cousin has been employed for two years.

90. After locking the door of the shop, she left.

A. She didn’t leave as soon as she locked the door of the shop.

B. She left before she locked the door of the shop.

C. She didn’t leave before she locked the door of the shop.

D. She didn’t leave until she locked the door of the shop.

Giải Bt Trắc Nghiệm 16,17,18,19,20,21 Trang 45 Sb Sinh Học 7

Lựa chọn câu để xem lời giải nhanh hơn

1. Có 1 vỏ đá vôi.

2. Có 2 vỏ đá vôi.

3. Phần đầu cơ thể tiêu giảm.

4. Có cơ chân lẻ phát triển.

5. Có lối sống chậm chạp thụ động.

6. Có lối sống di chuyển tích cực.

Tổ hợp đúng là :

A. 1,3,5,6. B. 2,3,5,6.

C. 2,4,5,6. D. 1,3,4,5.

Phương pháp Xem lý thuyết Trai sông Lời giải:

Lớp Chân rìu (đại diện là trai sông) có các đặc điểm: 2,4,5,6

1. Có khoang áo phát triển

2. Có 1 vỏ đá vôi hình ống, xoắn ốc.

3. Phần đầu phát triển.

4. Có tua miệng, mắt và khứu giác.

Tổ hợp đúng là :

A. 1,2,3. B. 1,3,4

C. 1,2,4. D. 2,3,4.

Phương pháp Xem lý thuyết Một số thân mềm khác Lời giải:

Lớp Chân bụng (đại diện là ốc sên) khác lớp Chân rìu (đại diện là trai sông) ở đặc điểm: 2,3,4.

Chọn D Câu 18

Đặc điểm nào sau đây không phải của lớp Chân đầu (đại diện là mực) ?

1. Vỏ đá vôi phát triển.

2. Tua miệng có 8 hay 10 tua.

3. Vỏ đá vôi tiêu giảm.

4. Khoang áo có hệ cơ phát triển góp phần vào cơ chế di chuyển ở chúng.

5. Có lối sống thụ động, chậm chạp.

Tổ hợp đúng là :

A. 1,2. B. 1,5

C.3,4. D. 1,3,5.

Phương pháp

Lớp Chân đầu (đại diện là mực) có đời sống bơi lội tự do

Lời giải:

Đặc điểm không phải của lớp Chân đầu (đại diện là mực): Vỏ đá vôi phát triển và có lối sống thụ động, chậm chạp.

Chọn B Câu 19

Chọn từ, cụm từ cho sẵn để điền vào chỗ trỏng trong câu sau cho phù hợp *

19. Thân mềm cấu tạo bằng (1)……….. gồm (2)………. lớp: Ngoài là lớp (3)…….., trong là lớp (4)……….. giữa là lớp (5)……….. Ngọc trai hình thành trong lớp (6)……….

A. đá vôi B. sừng

C. ba D. xà cừ

Phương pháp Xem lý thuyết Đặc điểm chung của ngành Thân mềm Lời giải:

1.A, 2.C, 3.B, 4.D, 5.A, 6.D

Câu 20

Chọn từ, cụm từ cho sẵn để điền vào chỗ trỏng trong câu sau cho phù hợp *

Ngoài cơ thể thân mểm có (1)………… bao phủ. Lớp áo thường ở ngay dưới vỏ (2)……… và gấp lại thành một (3)……… để (4)……….phát triển gọi là khoang áo.

A. mang B. đá vôi c. khoang trống D. lớp áo

Phương pháp Xem lý thuyết Đặc điểm chung của ngành Thân mềm Lời giải:

1.D, 2.B, 3.C, 4.A

Câu 21

21. Ghép nội dung ở cột B với cột A và điền vào cột c cho phù hợp với chức năng của ống hút và ống thoát.

Phương pháp Xem lý thuyết Đặc điểm chung của ngành Thân mềm Lời giải:

1.B, 2.C

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TRANSCRIPT

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Trng THPT Anh sn 3 2011

Ti liu n thi i hc nm 2010-

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V(ml). CM. 56 mcht bo(g)

Ch s x phng =

28. X phng ho hon ton 2,5g cht bo cn 50ml dung dch KOH 0,1M. Ch s x phng ho ca cht bo l: A. 280 B. 140 C. 112 D. 224 29. Muon trung hoa 5,6 gam mot chat beo X o can 6ml dung dch KOH 0,1M . Hay tnh ch so axit cua chat beo X va tnh lng KOH can trung hoa 4 gam chat beo co ch so axit bang 7 ? A. 4 va 26mg KOH B. 6 va 28 mg KOH C. 5 va 14mg KOH D. 3 va 56mg KOH Siu tm v bin son: Nguyn Vn X 3

Trng THPT Anh sn 3 Ti liu n thi i hc nm 20102011 30. Mun trung ho 2,8 gam cht bo cn 3 ml dd KOH 0,1M. Ch s axit ca cht bo l A.2 B.5 C.6 D.10 31. trung ho 4 cht bo c ch s axit l 7. Khi lng ca KOH l: A.28 mg B.280 mg C.2,8 mg D.0,28 mg 32. trung ho 14 gam mt cht bo cn 1,5 ml dung dch KOH 1M. Ch s axit ca cht bo l A. 6 B. 5 C. 7 D. 8 33. trung ha lng axit t do c trong 14 gam mt mu cht bo cn 15ml dung dch KOH 0,1M. Ch s axit ca mu cht bo trn l (Cho H = 1; O = 16; K = 39) A. 4,8 B. 6,0 C. 5,5 D. 7,2 34. x phng ho hon ton 2,52g mt lipt cn dng 90ml dd NaOH 0,1M. Tnh ch s x phng ca lipit A. 100 B. 200 C. 300 D. 400 35. trung ho axt t do c trong 5,6g lipt cn 6ml dd NaOH 0,1M. Ch s axt ca cht bo l: A. 5 B. 6 C. 5,5 D. 6,5

Siu tm v bin son: Nguyn Vn X

4

Trng THPT Anh sn 3 2011

Ti liu n thi i hc nm 2010-

DANG chúng tôi HAI CHT HU C N CHC (MCH H) TC DNG VI KIM TO RA 1. Hai mui v mt ancol th 2 cht hu c c th l: RCOOR ‘ RCOOR ‘ (1) hoc (2) R1COOR ‘ R1COOH – nancol = nNaOH hai cht hu c cng thc tng qut (1) – nancol < nNaOH hai cht hu c cng thc tng qut (2) VD1: Mt hn hp X gm hai cht hu c. Cho hn hp X phn ng va vi dung dch KOH th cn ht 100 ml dung dch KOH 5M. Sau phn ng thu c hn hp hai mui ca hai axit no n chc v c mt ru no n chc Y. Cho ton b Y tc dng vi Natri c 3,36 lt H2 (ktc). Hai hp cht hu c thuc loi cht g? HD Theo ta c: nKOH = 0,1.5 = 0,5 mol Ancol no n chc Y: CnH2n+1OH 1 CnH2n+1OH + Na CnH2n+1ONa + H2 2 0,3 mol 0,15 mol Thu phn hai cht hu c thu c hn hp hai mui v mt ancol Y vi nY < nKOH Vy hai cht hu c l: este v axit VD2: Hn hp M gm hai hp cht hu c mch thng X v Y ch cha (C, H, O) tc dng va ht 8 gam NaOH thu c ru n chc v hai mui ca hai axit hu c n chc k tip nhau trong dy ng ng. Lng ru thu c cho tc dng vi natri d to ra 2,24 lt kh H2 (ktc). X, Y thuc lai hp cht g? HD nNaOH = 0,2 mol nAncol = 0,2 mol Thu phn hai cht hu c X, Y v thu c s mol nAncol = nNaOH. Vy X, Y l hai este. 2. Mt mui v mt ancol th hai cht hu c c th l: – Mt este v mt ancol c gc hidrocacbon ging ru trong este: RCOOR1 v R1OH – Mt este v mt axit c gc hidrocacbon ging trong este: RCOOR1 v RCOOH – Mt axit v mt ancol. 3. Mt mui v hai ancol