HOC24
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Tính tổng A+B và hiệu A-B của hai đa thức A,B trong các trường hợp sau: a) A=x+2y và B=x-2y b)A=2x^2y-x^3-xy^2+1và B =x^3+xy^2-2 c) A=x^2-2yz+z^2 và B=3yz+5x^2-z^2
HELPPPPPPPPPPP!!!!!!!!!
Bài 4. Thu gọn các đa thức sau:
A=5x^2+3y+6x^2+7yB=7x^3+6y+6x^3+5y+6^2C=-8x^5+3y^4-x^5-10y^4D=x^2+y^2-5x^2-6y^2
Thu gọn các đơn thức sau rồi tìm bậc, hệ số của các đơn thức đó:A=x^2y.2xy^3
B=1/3xy^2.-3/4yz
C=(2x^3y^2z)^2
D=1/5(xy)^3.2/3x^2
Dựa vào nội dung của các văn bản đã học trong chương trình Ngữ văn bài hãy đặt ba câu bị động.Help!!!!!!!!!!!!
cho các đơn thức:2x^2, 1/3xy, -1/2x^2 tính tổng của các đơn thức đồng dạng vừa tìm được
21.A is a film that tries to make audiences laugh.A. horror B. sci-fi C. comedy D. documentary22.Many people were __________ by the violent scenes in that film.A. shocking B. shocked C. shock D. shocks23.Mr. Bean’s Holiday is a_____film. I was laughing from beginning to end.A. hilarious B. violent C. scary D. moving24. Not many people went to see the film_________ it received good reviews from critics.A. however B. in spite of C. despite D. although25.We were_____with the latest film of that director.A. satisfy B. satisfying C. satisfactory D. satisfied26.La Tomatina is a seasonal______to celebrate the tomato harvest.A. performance B. parade C. festival D. game27. _________often is the festival of the Sun held? - It’s held every year.A. Which B. When C. What D. How28.Tom thinks elephants are _________ animals.A. fascinated B. fascinating C. fascinates D. fascinate29.People take the Cannes Film Festival a very serious way.A. in B. at C. on D. with30.La Tomatina _______ on the last Wednesday of August every year.A. hold B. held C. is held D. be held31. ___________ do you like about Halloween?A. What B. Which C. When D. Why 32. __________ festival do you choose? - I choose Carnival Festival.A. What B. How C. Which D. When33.The Samba Parade in Rio Carnival has thousands of samba _____ from various samba schools.A. perform B. performance C. performer D. performers III. Choose the correct answer.
34.There are many ________ differences between the two communities.A. culture B. cultural C. cultures D. culturals35.There is a special _________ for Vietnamese women on October 20th every year.A. celebratory B. celebrate C. celebration D. celebrated36.Elephant Race Festival is held _________ Dak Lak province.A. in B. at C. on D. of37. Halloween is celebrated _________ October 31st.A. in B. on C. at D. with38. It is a seasonal festival ________ celebrate the tomato harvest.A. in B. to C. for D. with39. Day of the Dead is ________ on November 1st in Mexico.A. celebrated B. celebration C. celebrates D. celebrate40. New Year’s Day is celebrated _____ the first day of the new year.A. in B. on C. at D. to
Xin hay nhất ạ!!!
III. Choose the correct answer. 1. “__________ is it from your house to the nearest bus stop?” - “About 50 metres”A. How far B. How long C. How often D. How much2. Linda used to_________ morning exercise when she got up early.A. did B. does C. doing D. do3. Drivers have to their seatbelt whenever they drive.A. put B. hold C. fasten D. take4. We should the street at the zebra crossing.A. walk B. walk to C. walk up D. walk across5. Cyclists and motorists have to wear a ________ when they ride a motorbike.A. hat B. cap C. mask D. helmet6. I _________ like sports, but now I do a lot of different sports.A. use to B. used to C. didn’t use to D. didn’t used to7. There _________ a bus station in the city centre, but it has been moved to the suburbs.A. used to be B. use to be C. use to have D. were8. I __________ marbles when I was young, but now I didn’t.A. play B. used to play C. have played D. didn’t use to play9. Hoa and Lan_________ around West Lake yesterday. It took them an hour.A. cycle B. cycles C. cycling D. cycled10. Lan used to go to school .A. with bicycle B. by foot C. with car D. by bus 11. Tung finds horror films really .A. frightened B. frightening C. frightens D. frighten12. __________ they spent a lot of money on the film, it wasn’t a big success.A. However B. Nevertheless C. When D. Although13. The end of the film was so that many people cried.A. shocking B. moving C. exciting D. boring14. The film has a silly plot. , many people enjoyed it.A. Although B. Despite C. In spite of D. Nevertheless15. All critics said the film was really . Nevertheless, I was ________ with it.A. interesting – bored B. interesting – boringC. interested - bored D. interested – boring16. ___________ having a happy ending, the film starts with a terrible accident.A. Despite B. Although C. However D. Nevertheless17. Although the acting is wonderful, the ending is very .A. exciting B. fascinating C. interesting D. boring18. _________ Johnny Depp is a famous actor, he has failed in his recent films.A. Although B. Despite C. However D. Because19. A (An)________is a film that shows real life events or stories.A. action B. documentary C. thriller D. comedy20. I found the book so ___________that I couldn’t put it down.A. gripping B. boring C. tiring D. disappointing
Hãy viết đoạn văn nghị luận ( khoảng 1/2 trang giấy), chứng minh rằng:“Văn chương gây cho ta những tình cảm ta không có, luyện những tình cảm ta sẵn có". Trong đoạn văn có sử dụng câu bị động, gạch chân và chú thích rõ.
a. Xác định các biện pháp tu từ được sử dụng trong đoạn thơ sau:
...“Cháu chiến đấu hôm nay
Vì lòng yêu Tổ quốc
Vì xóm làng thân thuộc
Bà ơi, cũng vì bà
Vì tiếng gà cục tác
Ổ trứng hồng tuổi thơ
(Trích “Tiếng gà trưa”- Xuân Quỳnh - Ngữ văn 7, tập 1)
b.Trình bày tác dụng của các biện pháp tu từ vừa tìm được trong việc thể hiện nội dung của đoạn thơ.
(giúp mình với)