Chủ đề:
Đại số lớp 7Câu hỏi:
( x + 3 )2022 + ( \(\sqrt{y-2}\) - 1 )2023 = 0
mình cần gấp mong mọi người giúp ạ!!
Sân trường hình chữ nhật có chiều dài bằng 150m , chiều rộng bàng 80m . Hai mươi năm trước , nhà trường có trồng một hàng cây phượng và một hàng cây bàng , mỗi hàng 10 cây . Đến nay , hai hàng cây tốt tươi che nắng che mưa cho các em học sinh . Năm học tới nhà trường dự định làm thêm bồn cây xung quanh mỗi gốc cây . Mỗi bồn cây là một hình vuông có cạnh 2m . em hãy tính diện tích còn lại của sân trường . ( các cây các nhau 2m , mỗi hàn cách nhau hơn 2m ).
*/ Tìm x ∈ Z , biết :
a, (-12) . x = -15 . (-4) - 12
b, (-5) . x + 5 = -3 . (-8) + 6
c, 3 . x + 36 = -7x - 64
d, -5x - 178 = 14x + 145
*/ Tìm x :
a, -5 . ( x - 2 ) = 0
b, ( 5 - x ) . ( x + 7 ) = 0
c, (-4) . x = 20
d, (-1005) . ( x + 2 ) = 0
e, ( 8 + x ) . ( 6 - x ) = 0
f , 8x . ( 5 - x ) = 0
g, x2 - 5x = 0
IV. Đặt câu hỏi với YET
1. you/finish/the puzzle/yet?
...................................................................................................................................................................................................
2. anybody/bring/a bunch of flowers/yet?
...................................................................................................................................................................................................
3.your father/buy/the bicycle/for you/yet?
...................................................................................................................................................................................................
4.she/find/her/new yellow shoes/yet?
...................................................................................................................................................................................................
V. Trả lời câu hỏi dùng ALREADY
1. When will the film “A Beautiful Mind” start?
It has already started
2. When are you going to finish reading that book?
à I …………………………………………………………………………………………………………………………………………………………………………………
3. When are you going to buy the T-shirt you saw?
à I …………………………………………………………………………………………………………………………………………………………………………………
4.When is Sammy going to have your hair cut?
à He ……………………………………………………………………………………………………………………………………………………………………………..
5. When are your parent going to sell their car?
à They ………………………………………………………………………………………………………………………………………………………………………….
6. When will Mrs. Smith have an operation?
à She ……………………………………………………………………………………………………………………………………………………………………………
7. When will your neighbors come back from holiday?
à They …………………………………………………………………………………………………………………………………………………………………………..
8. When will the students plant flowers to the garden?
à They …………………………………………………………………………………………………………………………………………………………………………..
III. Điền từ vào chỗ trống sử dụng JUST, ALREADY hoặc YET
1.I have ................................................. heard that Mr. Brown had an accident. His wife called me a minute ago.
2. A: You can’t go out before you finish your homework.
B: Oh, mum I have ................................................. finished my homework.
3. Teacher: Have you finished answering all the questions .................................................?
Student: Yes, teacher. I have ................................................. completed them. I will write my name and give the exam paper to you.
4. A: Do you want me to help you with the washing up.
B: You are too late. I have ................................................. done the washing up.
5. A: Where is your father?
B: He has ................................................. arrived home. He is taking off his coat.
6. A: Has your father come home .................................................?
B: Yes, he has ................................................. come. He is sleeping now.
7. An accident has ................................................. happened. A man with a mustache is calling the ambulance. The police haven’t come yet. All the injured people are shouting in pain.
IV. Đặt câu hỏi với YET
1. you/finish/the puzzle/yet?
...................................................................................................................................................................................................
2. anybody/bring/a bunch of flowers/yet?
...................................................................................................................................................................................................
3.your father/buy/the bicycle/for you/yet?
...................................................................................................................................................................................................
4.she/find/her/new yellow shoes/yet?
...................................................................................................................................................................................................
V. Trả lời câu hỏi dùng ALREADY
1. When will the film “A Beautiful Mind” start?
It has already started
2. When are you going to finish reading that book?
à I …………………………………………………………………………………………………………………………………………………………………………………
3. When are you going to buy the T-shirt you saw?
à I …………………………………………………………………………………………………………………………………………………………………………………
4.When is Sammy going to have your hair cut?
à He ……………………………………………………………………………………………………………………………………………………………………………..
5. When are your parent going to sell their car?
à They ………………………………………………………………………………………………………………………………………………………………………….
6. When will Mrs. Smith have an operation?
à She ……………………………………………………………………………………………………………………………………………………………………………
7. When will your neighbors come back from holiday?
à They …………………………………………………………………………………………………………………………………………………………………………..
8. When will the students plant flowers to the garden?
à They …………………………………………………………………………………………………………………………………………………………………………..
I. Viết câu sử dụng thì Hiện tại hoàn thành
1.my father/just/come/home.
...................................................................................................................................................................................................
2.we/finish/already/project/Science.
...................................................................................................................................................................................................
3.yet/the students/enter/the gymnasium.
...................................................................................................................................................................................................
4.find/I/new idea/just/for/my composition.
...................................................................................................................................................................................................
5.meg/breakfast/already/finish/her.
...................................................................................................................................................................................................
6.our/yet/teacher/into/classroom/come.
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II. Trả lời câu hỏi dùng JUST, ALREADY, YET
1. Have you written the composition for the English lesson? (yet)
...................................................................................................................................................................................................
2. Have you studied for the Geography exam yet? (already)
...................................................................................................................................................................................................
3. Have you finished painting the fence behind the school? (just)
...................................................................................................................................................................................................
4. Have you eaten anything for breakfast yet? (yet)
...................................................................................................................................................................................................
5. Have you taken the trousers to the tailor’s yet? (already)
...................................................................................................................................................................................................
6. Has your father bought the newspaper and bread yet? (just)
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