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4 tháng 9 2017

X/ make sentence with "i wish" based on the given situation

1. He can't speak English well

-> I wish he could speak English well.

2. I can't go to Nha Trang beach this weekend

-> I wish I could go to Nha Trang beach this weekend.

3. She doesn't want to take part in the game

-> I wish she wanted to take part in the game.

4. I am very busy on Mondays

-> I wish I weren't very busy on Mondays.

5. Life is so complicated

-> I wish life weren't so complicated.

6. We don't have enough time to study

-> I wish we had enough time to study.

7. She never visits her grandparents (đổi never thành sometimes)

- > I wish she sometimes visited her grandparents.

8. The students don't go camping this Sunday

-> I wish the students went camping this Sunday.

9. The air in the city is very dirty

-> I wish the air in the city weren't dirty.

10. She can't dance beautifully

-> I wish she could dance beautifully.

4 tháng 9 2017

1. He can't speak English well

->…he wishes he could speak English well

2. I can't go to Nha Trang beach this weekend

->… I wish I could go to Nha Trang beach this weekend

3. She doesn't want to take part in the game

->… She wishes she didn't take part in the game

4. I am very busy on Mondays

->…I wish I weren't very busy on Mondays

5. Life is so complicated

->…I wish life wasn't so complicated

6. We don't have enough time to study

->…We wish we had enough time to study

7. She never visits her grandparents (đổi never thành sometimes)

- > …She wishes she sometimes visited her grandparents

8. The students don't go camping this Sunday

->…The students wish they went camping this Sunday

9. The air in the city is very dirty

->. he wishes the air in the city wasn't very dirty

10. She can't dance beautifully

->… She wishes she could dance beautifully

PTHH: \(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)

Ta có: \(\left\{{}\begin{matrix}m_{H_2SO_4}=588\cdot5\%=29,4\left(g\right)\Rightarrow n_{H_2SO_4}=\dfrac{29,4}{98}=0,3\left(mol\right)\\n_{Al_2O_3}=\dfrac{20,4}{102}=0,2\left(mol\right)\end{matrix}\right.\)

Xét tỉ lệ: \(\dfrac{0,2}{1}>\dfrac{0,3}{3}\) \(\Rightarrow\) Al2O3 còn dư

\(\Rightarrow n_{Al_2\left(SO_4\right)_3}=0,1\left(mol\right)=n_{Al_2O_3\left(dư\right)}\)

\(\Rightarrow C\%_{Al_2\left(SO_4\right)_3}=\dfrac{0,1\cdot342}{20,4+588-0,1\cdot102}\cdot100\%\approx5,72\%\)

3 tháng 7 2023

Make sentences with "wish" based on the given situation:

1.   What a pity! You aren't here with us now.

→   I wish you were here with us now.

2.   He doesn't help his mother with housework.

→   I wish he would help his mother with housework.

3. I can't swim.

→   I wish I could swim.

4. My friends often go on camping trip without me.

→   I wish my friends would not go on camping trips without me.

5. He always goes to school late.

→   I wish he wouldn't always go to school late

5 tháng 7 2017

Make sentences with " I wish " based on the given situation

1. What a pity ! You are not here with us now.

I wish you were here with us now.

2. I must go now

I wish i didn't have to go now

3. I can't swim

I wish i could swim

4. My friends often go on a camping trip without me

I wish my friends went on a camping trip with me

5. He always goes to school late

I wish he didn't go to school late

19 tháng 5 2018

1/i wish you were here with us

2/i wish i had not to go now

3/i wish i could swim

4/i wish my friends didnt go on camping trip without me

5/i wish he didnt go to school late

21 tháng 10 2021

\(d,ĐK:x\ge1\\ PT\Leftrightarrow\sqrt{x-1}=2+\sqrt{x+1}\\ \Leftrightarrow x-1=2+x+1+4\sqrt{x+1}\\ \Leftrightarrow4\sqrt{x+1}=-4\Leftrightarrow x\in\varnothing\left(4\sqrt{x+1}\ge0\right)\\ g,ĐK:x\ge\dfrac{1}{2}\\ PT\Leftrightarrow x+\sqrt{2x-1}+x-\sqrt{2x-1}+2\sqrt{\left(x+\sqrt{2x-1}\right)\left(x-\sqrt{2x-1}\right)}=2\\ \Leftrightarrow2x+2\sqrt{x^2-2x+1}=2\\ \Leftrightarrow\sqrt{\left(x-1\right)^2}=\dfrac{2-2x}{2}=1-x\\ \Leftrightarrow\left|x-1\right|=1-x\\ \Leftrightarrow\left[{}\begin{matrix}x-1=1-x\left(x\ge1\right)\\x-1=x-1\left(x< 1\right)\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=1\left(tm\right)\\x\in R\end{matrix}\right.\)

 

cs ai biết làm bài này k giúp mình vs mình đang cần rất gấp mong các bạn làm giúp mình (xin cảm ơn)I. Choose one sentence that best rewrites the sentence given:1.      They understand more than we do.A.    We don’t understand as much as they do.B.    We  don’t understand anything at all.C.    They understand everything inside out.D.    They are very intelligent.2.      It is much more difficult to speak English than to speak French.      A. To speak French is more difficult than...
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cs ai biết làm bài này k giúp mình vs mình đang cần rất gấp mong các bạn làm giúp mình (xin cảm ơn)

I. Choose one sentence that best rewrites the sentence given:

1.      They understand more than we do.

A.    We don’t understand as much as they do.

B.    We  don’t understand anything at all.

C.    They understand everything inside out.

D.    They are very intelligent.

2.      It is much more difficult to speak English than to speak French.

      A. To speak French is more difficult than to speak English.

      B. To speak English is more difficult than to speak French.

      C. Speaking English is more difficult than to speak French.

      D. Speaking French is not as difficult as to speaking English.

3.      My interview lasted longer than yours.

      A. Your interview wasn’t as short as mine.

      B. Your interview was shorter than mine.

      C. Your interview was as long as mine.

      D. Your interview was longer than mine.

4.      When I was younger, I used to go climbing more than I do now.

      A. Now I don’t go climbing anymore.

      B. I used to go climbing when I younger.

      C. Now I don’t go climbing as much as I did.

      D. I don’t like going climbing any more.

5. Your coffee is not as good as mine.

            A. Mine is better than yours.

            B. My coffee is better than your.

            C. My coffee is better than yours.

            D. My coffee is more good than yours.

6. I can’t cook as well as my mother does.

            A. My mother can cook better than I can.

            B. My mother can’t cook better than I can.

            C. My mother can cook well than I can.

            D. I can cook better than my mother can.

7. Murder is the most serious of all crimes.

            A. Murder is very serious.

            B. No crime is more serious than murder.

            C. Everyone is very afraid of murder.

            D. Murder is the dangerous crime.

8. No one in this class as tall as peter.

            A. Peter is taller than in this class.

            B. Peter is the tallest in this class.

            C. Peter is the most tall in this class.

            D. Peter is more tall than in this class.

9. This is the best music I have ever heard.

            A. I‘ve ever heard better music than this.

            B. I‘ve ever heard such a good music as this.

            C. I‘ve ever heard so good music as this.

            D. This is the first time I‘ve heard this good music.

10. People dive fast. Many accidents happen.

A. The faster people drive, the more accidents happen.

B. The more fast people drive, the more accidents happen.

C. The much fast people drive, the more accidents happen.

D. The faster people drive, the much accidents happen.

8. I meet him much. I hate him much.

A. The better I meet him, the more I hate him.

B. The more time I meet him, the more I hate him.

C. The more I meet him, the more I hate him.

D. The better I meet him, the better I hate him

.II. Give the suitable comparion to complete each sentence. (cho dạng so sánh đúng)

1. The weather today is………. than it was yesterday. ( hot )

2. The ……….. city in Canada is Toronto. ( large )

3. This story is ………….. than that one. ( funny )

4. I’m taking four classes. My history class is the  ………… of all.

( interesting )

5. The Pacific is …………. than the Mediterranean Sea. ( deep )

6. You can write ……………… than I can ( well )

7. My father drives  ………………. than I do. ( carefully )

8. Indonesia is…….. than Japan in population. ( large )

9. Mt. Everest is …………… mountain in the world. ( high )

10. __________ my grandparents get, _____________ they are. (old – happy)

11. __________ it is, ___________ Hoa is. (hot – weak)

1
2 tháng 8 2021

I. Choose one sentence that best rewrites the sentence given:

1.      They understand more than we do.

A.    We don’t understand as much as they do.

B.    We  don’t understand anything at all.

C.    They understand everything inside out.

D.    They are very intelligent.

2.      It is much more difficult to speak English than to speak French.

      A. To speak French is more difficult than to speak English.

      B. To speak English is more difficult than to speak French.

      C. Speaking English is more difficult than to speak French.

      D. Speaking French is not as difficult as to speaking English.

3.      My interview lasted longer than yours.

      A. Your interview wasn’t as short as mine.

      B. Your interview was shorter than mine.

      C. Your interview was as long as mine.

      D. Your interview was longer than mine.

4.      When I was younger, I used to go climbing more than I do now.

      A. Now I don’t go climbing anymore.

      B. I used to go climbing when I was younger.

      C. Now I don’t go climbing as much as I did.

      D. I don’t like going climbing any more.

5. Your coffee is not as good as mine.

            A. Mine is better than yours.

            B. My coffee is better than your.

            C. My coffee is better than yours.

            D. My coffee is more good than yours.

6. I can’t cook as well as my mother does.

            A. My mother can cook better than I can.

            B. My mother can’t cook better than I can.

            C. My mother can cook well than I can.

            D. I can cook better than my mother can.

7. Murder is the most serious of all crimes.

            A. Murder is very serious.

            B. No crime is more serious than murder.

            C. Everyone is very afraid of murder.

            D. Murder is the dangerous crime.

8. No one in this class as tall as peter.

            A. Peter is taller than in this class.

            B. Peter is the tallest in this class.

            C. Peter is the most tall in this class.

            D. Peter is more tall than in this class.

9. This is the best music I have ever heard.

            A. I‘ve ever heard better music than this.

            B. I‘ve ever heard such a good music as this.

            C. I‘ve ever heard so good music as this.

            D. This is the first time I‘ve heard this good music.

10. People dive fast. Many accidents happen.

A. The faster people drive, the more accidents happen.

B. The more fast people drive, the more accidents happen.

C. The much fast people drive, the more accidents happen.

D. The faster people drive, the much accidents happen.

8. I meet him much. I hate him much.

A. The better I meet him, the more I hate him.

B. The more time I meet him, the more I hate him.

C. The more I meet him, the more I hate him.

D. The better I meet him, the better I hate him

.II. Give the suitable comparion to complete each sentence. (cho dạng so sánh đúng)

1. The weather today is……hottest…. than it was yesterday. ( hot )

2. The ……largest ….. city in Canada is Toronto. ( large )

3. This story is ………funnier….. than that one. ( funny )

4. I’m taking four classes. My history class is the  ……most interesting…… of all.

( interesting )

5. The Pacific is ………deeper…. than the Mediterranean Sea. ( deep )

6. You can write …………better…… than I can ( well )

7. My father drives  ………more carefully………. than I do. ( carefully )

8. Indonesia is……larger.. than Japan in population. ( large )

9. Mt. Everest is ………the highest…… mountain in the world. ( high )

10. _______ths older___ my grandparents get, ________the happier_____ they are. (old – happy)

 

11. ______the hotter____ it is, ________the weaker___ Hoa is. (hot – weak)

 

cs ai biết làm bài này k giúp mình vs mình đang cần gấp (xin cảm ơn)I. Choose one sentence that best rewrites the sentence given:1.      They understand more than we do.A.    We don’t understand as much as they do.B.    We  don’t understand anything at all.C.    They understand everything inside out.D.    They are very intelligent.2.      It is much more difficult to speak English than to speak French.      A. To speak French is more difficult than to speak English.      B. To speak...
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cs ai biết làm bài này k giúp mình vs mình đang cần gấp (xin cảm ơn)

I. Choose one sentence that best rewrites the sentence given:

1.      They understand more than we do.

A.    We don’t understand as much as they do.

B.    We  don’t understand anything at all.

C.    They understand everything inside out.

D.    They are very intelligent.

2.      It is much more difficult to speak English than to speak French.

      A. To speak French is more difficult than to speak English.

      B. To speak English is more difficult than to speak French.

      C. Speaking English is more difficult than to speak French.

      D. Speaking French is not as difficult as to speaking English.

3.      My interview lasted longer than yours.

      A. Your interview wasn’t as short as mine.

      B. Your interview was shorter than mine.

      C. Your interview was as long as mine.

      D. Your interview was longer than mine.

4.      When I was younger, I used to go climbing more than I do now.

      A. Now I don’t go climbing anymore.

      B. I used to go climbing when I younger.

      C. Now I don’t go climbing as much as I did.

      D. I don’t like going climbing any more.

5. Your coffee is not as good as mine.

            A. Mine is better than yours.

            B. My coffee is better than your.

            C. My coffee is better than yours.

            D. My coffee is more good than yours.

6. I can’t cook as well as my mother does.

            A. My mother can cook better than I can.

            B. My mother can’t cook better than I can.

            C. My mother can cook well than I can.

            D. I can cook better than my mother can.

7. Murder is the most serious of all crimes.

            A. Murder is very serious.

            B. No crime is more serious than murder.

            C. Everyone is very afraid of murder.

            D. Murder is the dangerous crime.

8. No one in this class as tall as peter.

            A. Peter is taller than in this class.

            B. Peter is the tallest in this class.

            C. Peter is the most tall in this class.

            D. Peter is more tall than in this class.

9. This is the best music I have ever heard.

            A. I‘ve ever heard better music than this.

            B. I‘ve ever heard such a good music as this.

            C. I‘ve ever heard so good music as this.

            D. This is the first time I‘ve heard this good music.

10. People dive fast. Many accidents happen.

A. The faster people drive, the more accidents happen.

B. The more fast people drive, the more accidents happen.

C. The much fast people drive, the more accidents happen.

D. The faster people drive, the much accidents happen.

8. I meet him much. I hate him much.

A. The better I meet him, the more I hate him.

B. The more time I meet him, the more I hate him.

C. The more I meet him, the more I hate him.

D. The better I meet him, the better I hate him

.II. Give the suitable comparion to complete each sentence. (cho dạng so sánh đúng)

1. The weather today is………. than it was yesterday. ( hot )

2. The ……….. city in Canada is Toronto. ( large )

3. This story is ………….. than that one. ( funny )

4. I’m taking four classes. My history class is the  ………… of all.

( interesting )

5. The Pacific is …………. than the Mediterranean Sea. ( deep )

6. You can write ……………… than I can ( well )

7. My father drives  ………………. than I do. ( carefully )

8. Indonesia is…….. than Japan in population. ( large )

9. Mt. Everest is …………… mountain in the world. ( high )

10. __________ my grandparents get, _____________ they are. (old – happy)

11. __________ it is, ___________ Hoa is. (hot – weak)

III. Rewrite the second sentence in such a way that it has the same meaning as the one before it

1. Jane can swim further than I can

I can’t_____________________________________________________________________

2. My sister can’t cook as well as my mother does

My mother can______________________________________________________________

3. I don’t play tennis as well as my brother does

My brother__________________________________________________________________

4. Apples are usually cheaper than oranges

Apples are not_______________________________________________________________

5. Cats can’t swim as well as dogs can

Dogs can___________________________________________________________________

6. The dress is cheaper than the skirt

The dress is not______________________________________________________________

7. Peter is the tallest boy in his class

No one ____________________________________________________________________

8. Nobody in the class is cleverer than Sally

Sally is ____________________________________________________________________

9. Have you got a cheaper carpet than this?

Is this _____________________________________________________________________

10. They understand more than we do

We don’t ___________________________________________________________________

11. Tom is the best football player in this team

Nobody____________________________________________________________________

12. Nothing is faster than the speed of light

The speed of light____________________________________________________________

13. His mother is taller than his father

His father is not _____________________________________________________________

14. She’s a faster and more careless driver than I am

She drives __________________________________________________________________

15. Jane is a better cook than Robert

Robert can’t   …………………………………………………………………..

1
2 tháng 8 2021

I. Choose one sentence that best rewrites the sentence given:

1.      They understand more than we do.

A.    We don’t understand as much as they do.

B.    We  don’t understand anything at all.

C.    They understand everything inside out.

D.    They are very intelligent.

2.      It is much more difficult to speak English than to speak French.

      A. To speak French is more difficult than to speak English.

      B. To speak English is more difficult than to speak French.

      C. Speaking English is more difficult than to speak French.

      D. Speaking French is not as difficult as to speaking English.

3.      My interview lasted longer than yours.

      A. Your interview wasn’t as short as mine.

      B. Your interview was shorter than mine.

      C. Your interview was as long as mine.

      D. Your interview was longer than mine.

4.      When I was younger, I used to go climbing more than I do now.

      A. Now I don’t go climbing anymore.

      B. I used to go climbing when I younger.

      C. Now I don’t go climbing as much as I did.

      D. I don’t like going climbing any more.

5. Your coffee is not as good as mine.

            A. Mine is better than yours.

            B. My coffee is better than your.

            C. My coffee is better than yours.

            D. My coffee is more good than yours.

6. I can’t cook as well as my mother does.

            A. My mother can cook better than I can.

            B. My mother can’t cook better than I can.

            C. My mother can cook well than I can.

            D. I can cook better than my mother can.

7. Murder is the most serious of all crimes.

            A. Murder is very serious.

            B. No crime is more serious than murder.

            C. Everyone is very afraid of murder.

            D. Murder is the dangerous crime.

8. No one in this class as tall as peter.

            A. Peter is taller than in this class.

            B. Peter is the tallest in this class.

            C. Peter is the most tall in this class.

            D. Peter is more tall than in this class.

9. This is the best music I have ever heard.

            A. I‘ve ever heard better music than this.

            B. I‘ve ever heard such a good music as this.

            C. I‘ve ever heard so good music as this.

            D. This is the first time I‘ve heard this good music.

10. People dive fast. Many accidents happen.

A. The faster people drive, the more accidents happen.

B. The more fast people drive, the more accidents happen.

C. The much fast people drive, the more accidents happen.

D. The faster people drive, the much accidents happen.

8. I meet him much. I hate him much.

A. The better I meet him, the more I hate him.

B. The more time I meet him, the more I hate him.

C. The more I meet him, the more I hate him.

D. The better I meet him, the better I hate him

.II. Give the suitable comparion to complete each sentence. (cho dạng so sánh đúng)

1. The weather today is……hotter…. than it was yesterday. ( hot )

2. The ……largest….. city in Canada is Toronto. ( large )

3. This story is ……funnier…….. than that one. ( funny )

4. I’m taking four classes. My history class is the  ……most interesting…… of all.

( interesting )

5. The Pacific is ………deeper…. than the Mediterranean Sea. ( deep )

6. You can write ………better……… than I can ( well )

7. My father drives  …………more carefully……. than I do. ( carefully )

8. Indonesia is…larger….. than Japan in population. ( large )

9. Mt. Everest is ………the highest…… mountain in the world. ( high )

10. ____the older______ my grandparents get, _______the happier______ they are. (old – happy)

11. _____the hotter_____ it is, _______the weaker____ Hoa is. (hot – weak)

III. Rewrite the second sentence in such a way that it has the same meaning as the one before it

1. Jane can swim further than I can

I can’t swim as far as Jane.

2. My sister can’t cook as well as my mother does

My mother can cook better than my sister.

3. I don’t play tennis as well as my brother does

My brother plays tennis better than me.

4. Apples are usually cheaper than oranges

Apples are not usually as cheap as apples.

5. Cats can’t swim as well as dogs can

Dogs can swim better than cats.

6. The dress is cheaper than the skirt

The dress is not as cheap as the dress.

7. Peter is the tallest boy in his class

No one in his class is as tall as Peter.

8. Nobody in the class is cleverer than Sally

Sally is the cleverest in the class.

9. Have you got a cheaper carpet than this?

Is this the cheapest carpet you have got?

10. They understand more than we do

We don’t understand as much as them.

11. Tom is the best football player in this team

Nobody in this team plays football as good as Tom.

12. Nothing is faster than the speed of light

The speed of light is the fastest.

13. His mother is taller than his father

His father is not as tall as his mother.

14. She’s a faster and more careless driver than I am

She drives faster and more carelessly than I do.

15. Jane is a better cook than Robert

Robert can’t cook as well as Jane.

2 tháng 8 2021

cảm ơn bạn nhiều nhé

 

9 tháng 11 2021

39. What a pity! You aren’t here with us now.->

We wish you were here with us now_______________________________________________

40. The naughty boys always draw on the wall.->

_I wish the naughty boys didn't always draw on the wall. ______________________________________________

41. I’d like my father to give up smoking. ->

I wish my father gave up smoking_______________________________________________

42. He doesn’t help his mother with housework. ->

I wish he helped his mother with housework____________________________________________

43. I can’t swim. -> ___I wish I could swim____________________________________________

44. My friends often go on camping trip without me. ->

____I wish my friends didn't go on camping trip without me___________________________________

45. I must go now. -> __I wish I didn't have to go now_____________________________________________

46. He always goes to school late. ->

__I wish he didn't go to school late_____________________________________________

47. My brother is too short to play basketball. ->

__I wish my brother weren't too short to play basketball._____________________________________________

48. I don’t have enough money to help you. -> ______I wish I had enough money to help you _________________________________________

2 tháng 12 2021

Bài 3.

Định luật ll Niu-tơn:

\(\overrightarrow{F}+\overrightarrow{F_{ms}}=m\cdot\overrightarrow{a}\)

\(\Rightarrow F-F_{ms}=m\cdot a\)

Gia tốc vật:

\(a=\dfrac{F-F_{ms}}{m}=\dfrac{4,5-\mu mg}{m}=\dfrac{4,5-0,2\cdot1,5\cdot10}{1,5}=1\)m/s2

Vận tốc vật sau 2s:

\(v=a\cdot t=1\cdot2=2\)m/s