De thi giao lưu học sinh giỏi lớp 7


THCS.TOANMATH.com giới thiệu đến quý thầy, cô giáo và các em học sinh lớp 7 đề giao lưu HSG Toán 7 năm 2019 – 2020 phòng GD&ĐT Chí Linh – Hải Dương; đề thi có đáp án + lời giải chi tiết + hướng dẫn chấm điểm.

Trích dẫn đề giao lưu HSG Toán 7 năm 2019 – 2020 phòng GD&ĐT Chí Linh – Hải Dương: + Cho tam giác ABC vuông cân tại A. Gọi M là trung điểm của BC. a] Chứng minh AM BC và MA = MC. b] Lấy điểm D trên đoạn thẳng AB [D khác A và B], đường thẳng vuông góc với MD tại M cắt AC tại E. Chứng minh: MD = ME. c] Chứng minh: MD + ME >= AD + AE. + Hãy chia số 26 thành ba phần tỉ lệ nghịch với các số 2; 3; 4.

+ Cho đa thức. Tìm đa thức C = A – B. Tính giá trị của đa thức C tìm được ở trên khi 2x + y = 1.

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Đề thi HSG Toán 7 cấp huyện số 1:

Đáp án đề thi HSG Toán 7 cấp huyện số 1:

…còn nữa

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  1. PHÒNG GD&ĐÀO TẠO KỲ THI GIAO LƯU HỌC SINH GIỎI LỚP 7 HUYỆN QUẢNG XƯƠNG NĂM HỌC 2018 - 2019 MÔN THI: TIẾNG ANH ĐỀ THI THỬ Thời gian: 150 phút [ Không kể thời gian giao đề ] PART A: PHONETICS: [5 points]. I/. Choose the word whose underlined part pronounced differently from that of the others by circling A, B, C or D [3.0 points]. 1. A. orchestra B . change C . catch D . championship 2. A. sugar B. serious C. symptom D. second 3. A. worked B . missed C . returned D . watched II/. Choose the word whose stress pattern is different from the others by circling A, B, C or D [2.0 points]. 1. A. mixture B . detective C . improve D . rehearse 2. A. geography B . chemistry C . history D . different PART B: VOCABULARY AND GRAMMAR: [30 points] I/. Circle the best answer A, B, C or D to complete the following sentences. [10 points]. 1/. Isn’t it easy to learn English well ? - A. No, it is B. No it does not C. Yes, it is D. Yes. It does 2/ I don't know how this lesson. A. to learn B. learn C. learning D. learned 3/. There are two churches in the town and of them are extremely old. A. each B. all C. both D. most 4/. My joke made the whole class A. smile B. laughing C. laugh D. crying 5/. Mr. Nam to work yesterday A. wasn’t drive B. not drive C. didn’t drove D. didn’t drive 6/. The news on TV last night . very good. A. was B. has C. were D. be 7/. Lan did not know the world. Hoa didn’t . A. so B. neither C. either D. too 8/. The boss wants his to type some letters. A. secretary B. novelist C. journalist D. musician 9/. If he eats all that food, he eats A. quite much B. too many C. quite many D. too much 10/. Mr. Robinson speaks Vietnamese very A. skillfully B. good C. fluently D. best
  2. II/. Give the correct form of the verbs in brackets to complete the following sentences.[10 points] 1/. We can’t go out now because it [rain ] . 2/. They [meet] their teacher at the moment. 3/. We [visit ] the museum at the moment. We [visit ] it once a year. 4/. Hai [not write ] to her parents last week. She [ phone ] . them. 5/.Duy [ not visit] . the museum with his class last Sunday because he [catch ] . a cold. 6/. How much it [ cost ] .to mail a latter to England ? 7/. Take these pills and you [ feel ] better then, Ha . III/. Use the word given in capital at the end of each line to form a word that fits in the space in the same line.[10 pts] 1. Minh plays volleyball very ___ . SKILL 2. We mustn’t be ___ when we cross busy streets. CARE 3. There are many badminton ___ nowadays. COMPETE 4. I’d like a nice ___ orange. JUICE 5. It’s very ___ of you to give me a lift. HELP PART C. READING [25 points]. I/.Read the passage and choose the best option by circling A, B, C or D.[10.points] Keeping our teeth healthy Many people nowadays ___[1] wear false teeth when they are middle- aged. Doctors and dentists now ___[2] that sugar is the chief cause of ___[3] decay. Long ago doctors ___[4] not like to treat people’s teeth. Bakers and blacksmiths looks ___[5] people’s teeth and pulled them ___[6] when they decayed. Some people thought toothache was a punishment from the gods. It is very important to have ___[7] teeth. Good teeth help us to chew our food. They also help us to look nice. How can we keep our teeth healthy? – First, visit our dentist at least twice a year. He can examine our teeth to check that they are good or ___[8] or are growing in the right way. Secondly, brush our teeth with fluoride toothpaste ___[9] meals and before bedtime. We can also use wooden toothpicks to clean between our teeth after a meal. Thirdly, we should eat food that is good ___[10] our teeth and body: milk, cheese, fish, brown bread, potatoes red rice, raw vegetables and fresh fruit. 1. A. has to B. have to C. having to D. had to 2. A. knows B. knowing C. know D. knew 3. A. tooth B. teeth C. gum D. mouth 4. A. do B. are C. were D. did 5. A. for B. after C. at D. into 6. A. out B. of C. off D. in
  3. 7. A. beautiful B. useful C. helpful D. healthy 8. A. nice B. pretty C. bad D. badly 9. A. before B. after C. when D. while 10. A. for B. with C. to D. of II- Read the paragraph and choose the right answer.[5.0 points] It is five o’clock in the evening when Rene Wagner comes home from work. She walks into the living room and looks at her three children. They are 14, 13 and 9 years old. They are watching TV. The living room is a mess. There are dirty socks on the floor and cookies on the sofa. Games and toys are everywhere. Rene is angry, “This place is a mess” she tells, “I can’t work all day and then do housework all evening. I’m not going to do housework!” Rene does not do housework. She does not clean or wash dishes. She does not wash clothes, either. Every evening she sits on the sofa and watches TV. After two weeks, every plate, fork and glass in the house is dirty. All the children’s clothes are dirty. Every garbage basket is full. The house is a mess. Then, one day Rene comes home from work and gets a big surprise. The kitchen is clean. The children clean the kitchen! The next day, the living room is clean, and the children are washing their clothes. Rene tells the children “OK, I’ll do the housework again. But you have to help me.” Now Rene and her three children do the housework together. Then they all sit on the sofa and watch TV! 1. When Rene came home from work, she found the house . . A. clean and dirty B. dirty and tidy C. dirty and untidy D. clean but untidy 2. Rene told her children that . A. to do the housework B. she couldn’t do housework C. not to do housework D. she wouldn’t do housework 3. Two weeks later, the house was . A. very clean B. a mess C. tidy D. rather dirty 4. Some days later, the house was clean again because . . A. she could not let it that way B. her children did housework. C. her children did not do housework. D. she did housework again. 5. Now Rene does housework again because . . A. her children help her. B. they can watch TV together. C. her children wash their clothes. D. her children do not do it.
  4. III/. Fill in the blank of the following passage with the words given.[10 points] expensive - after - fun - temple- types - shop- vacation bought- thought- like Liz has just come back from her [1] .in Nha Trang. It was really wonderful. She had a lot of [2] For Liz, the people in Nha Trang were friendly and the food was delicious. But she thought that most things there weren’t cheap. They were quite [3] Her parents took her to see Cham [4] .and Tri Nguyen Aquarium. In Tri Nguyen Aquarium they saw some sea animals [5] .sharks, dolphins and turtles. They also saw a lot of different[6] of fish. Liz liked the colorful fish. She [7] they were the most beautiful. They bought some things from the souvenir [8] near the exit of the aquarium. Liz’s father [9] her a cap with a picture of dolphin, and her mother bought a poster. Liz bought gifts for her friends. [10] .the trip Liz didn’t feel tired at all. She had a great time! PART D. WRITING [20 points]. I/. Underline the mistakes and write the correct answer in the space provided.[5pts] 1. It takes Huy three hours doing his homework every evening. 1 A B C D 2. There is fewer work in the evening than there is in the morning. 2 A B C D 3. Would you like going to the movies with us tonight. 3 A B C D 4. Mr Ba soon got used to travel to work by bicycle. 4 A B C D 5. The doctor says you should spend a little time to play video game. 5 A B C D II. Complete the second sentences in such a way that it is almost the same as the first. [10 points] 1. I prefer listening to music to playing games. . Listening to music is ___ 2. Mr. Hung speaks Chinese fluently.  Mr. Hung is ___ 3. Life in the past is not as comfortable as life nowadays.  Life nowadays ___ 4. You shouldn’t forget to write to your parents.  You’d ___ 5. Trung didn't go to school last Saturday. Trung was ___ 6. My house is the oldest house on the stress.
  5. No houses___ 7. It takes my mother half an hour to cook lunch. My mother spends___ 8. Our summer vacation lasts three months.  We have a ___ 9. These naughty students like computer games better than school lessons.  These naughty students prefer ___ 10. Learning English is very difficult for my brother.  It is ___ III. Write a paragraph about [ 100-120 words ] about traffic problem where you live or in a town.[ 10 points] THE END
  6. PHÒNG GIÁO DỤC&ĐT KỲ GIAO LƯU HỌC SINH GIỎI LỚP 7 HUYỆN QUẢNG XƯƠNG NĂM HỌC 2018 - 2019 Môn thi: Tiếng Anh Thời gian: 120 phút [ không kể thời gian giao đề ] ĐÁP ÁN – HƯỚNG DẪN CHẤM KỲ GIAO LƯU HỌC SINH GIỎI LỚP 7 MÔN TIẾNG ANH PART A: PHONETICS: [5.0 points] I. Choose the word whose underlined part pronounced differently from that of the others by circling A, B, C or D [3.0 points] 1.A 2.A 3.C II. Choose the word whose stress pattern is different from the others by circling A, B, C or D [2.0 points] 1.A 2.A PART B: VOCABULARY AND GRAMMAR: [30 points] I. Circle the best answer A, B, C or D to complete the following sentences: [10 pts] 1. D 2. C 3. C 4. C 5. D 6. A 7. C 8. A 9. D 10. C II. Give the correct form of the verbs in brackets. [10 points] 1 is raining 4 didn’t write - phoned 2 Are meeting 5 didn't visit - caught 3 are visiting - visit 6 does it cost 7. will feel III. Give the correct form of the words in parentheses. [10 points]. 1.skillfull 2. careless 3.competitions 4.juicy 5. helpful PART C. READING [25 PTS]. I[ 1 x10 = 10 pts] 1B 2C 3A 4D 5B 6A 7D 8C 9B 10A II. [ 1 x 5 = 5 pts] 1 C 2 D 3B 4 B 5 A III. [ 1 x10 = 10 pts] 1 vacation 2 fun 3 expensive 4 temple 5 like 6 types 7 thought 8 shop 9 bought 10 after
  7. D. WRITING [20 PTS]. I. Circle the letter of the underlined portion which is not correct and correct it. [5.0 pts] 1.C [to do] 2.B[ less] 3.B[to go] 4.B[travelling ] 5D [playing] II. Complete the second sentences in such a way that it is almost the same as the first. [10 pts] 1. I prefer listening to music to playing games. . Listening to music is more interesting than playing games. 2. Mr. Hung speaks Chinese fluently.  Mr. Hung is a fluent Chinese speaker. 3. Life in the past is not as comfortable as life nowadays.  Life nowadays is more comfortable than life in the past. 4. You shouldn’t forget to write to your parents.  You’d better not forget to write to your parents 5. Trung didn't go to school last Saturday. Trung was absent from school last Saturday. 6. My house is the oldest house on the stress. No houses on the stress are older than my house. 7. It takes my mother half an hour to cook lunch. My mother spends half an hour cooking lunch. 8. Our summer vacation lasts three months  We have a three - month summer vacation. 9. These naughty students like computer games better than school lessons.  These naughty students prefer computer games to school lessons. 10. Learning English is very difficult for my brother.  It is very difficult for my brother to learn English. III. Write a paragraph about [ 100-120 words ] about traffic problem where you live or in a town. Marking criteria: - Bài viết có bố cục 3 phần, nội dung tốt: 2.0 points - Tính chính xác về ngữ pháp và từ vựng, chính tả: 2.0 points - Tính liên kết giữa câu, đoạn: 1.0 points
  8. B- HƯỚNG DẪN CHẤM: - Nếu học sinh làm cách khác đúng thì vẫn được điểm. - Tổng điểm toàn bài :80 points - Thang điểm: 20 điểm Tổng số điểm các câu, ý làm đúng Điểm bài thi = 4 - Điểm bài thi được làm tròn đến 0,25 THE END

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