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1) It is late now; I don't think Ann will come to see us
-> I would be surprised if Ann came to see us.
2)We don't go on holiday because we don't have enough money
-> If we had enough money, we would go on holiday.
3) Do these exercises more carefully or you will fail the exams
-> Unless you do these exercises more carefully, you will fail the exams.
4) I do not know the answer so I can not tell you
-> If I knew the answer, I could tell you.
5) She can't apply for the job because she doesn't know French
-> If she knew French, she could apply for the job.
6) if she didn't come here now, we'd come back home
-> Unless she came here now, we'd come back home.
7) Be careful or you will not be able to get the job
-> Unless you are careful, you will be able to get the job.
8) The trees will die unless it rains soon
-> If it doesn't rains soon, the trees will die.
Noise is constant and loud sound. To measure the loudness, or volume of sounds, people use a unit called a decibel. When a sound is louder than 70 decibels, it can cause noise pollution. Do you know that the noise from a vacuum cleaner or a motorcycle can result in permanent hearing loss after eight hours? The sounds of a concert are even more serious. They can reach as high as 130 decibels and may cause immediate and permanent hearing loss. Noise pollution can also lead to headaches and high blood pressure. If you are listening to music through headphones, and other people can hear it. it means the music is too loud and unsafe. If there seems to be a ringing or buzzing in your ears, it means the noise is affecting you and damaging your hearing- Wearing earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels can help you reduce the effects of noise pollution.
1. What do people use to measure the loundness or volume of sounds ?
They use a unit called a decibel to measure the loundness or volume of sounds
2. Does the noise from a vacuum cleaner result in pernament hearing loss after eight hours ?
Yes, it does
3. What can noise pollution also lead to ?
It can also lead to headaches and high blood pressure
4. Is the music safe when you listen to it through headphones , and other people can hear it as well ?
No, it isn't
5. What can you do to help reduce the effects of noise pollution ?
I can wear earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels to help reduce the effects of noise pollution
1.If you didn't take exercise regularly, it wouldn't be the way to get fit.
2. If I had a dictionary, I could look the word up.
3.If I had his phone number, I would phone him.
4.If you didn't give me a ring, you might want a help.
5.If it wasn't raining, we would finish the game.
6.If thu bus weren't always so crowed, I would take it to school very morning.
7.If people realised how important it is to conserver energy, they wouldn't do nothing about it.
8.If David wasn't so clumsy, he wouldn't have a lot of accidents.
Ex1: Complete the conditional sentences, using the given information:
1. You should take exercise regularly because it is the way to get fit.
=> If you take exercise regularly, you will get fit.
2. I can't look the word up because I don't have a dictionary.
=> If I had a dictionary, I could look the word up.
3. I don't have his phone number, so I don't phone him.
=> If I had his phone number, I would phone him.
4. You may want a help, just give me a ring.
=> If you want a help, you must give me a ring.
5. It is raining, so we won't finish the game.
=> If it weren't raining, we would finish the game.
Ex1:Complete the second sentence so that it has similar meaning to the first sentence
1>The soil is poisoned because,farmers use too many pesticides and herbicides.
-If.............................famers used too many pesticides and herbicides, the soil would be poisoned ...............................................................................................
2>I can't help you unless you tell me what's wrong.
-If....................................you don't tell me what's wrong , I can't help you ......................................................................................
3>Many people have stomachache due to the contaminated food.
-The food..............................is contaminated so many people have stomacchache ....................................................................
4>Stop swimming in that lake,or you will have skin rashes.
-If...................................you don't stop swimming on that lake, you will have skin rashes........................................................................
5>John lives in the area affected by air pollution,so he has breathing problem.
-Because....................................John lives in the area affested by air pollution, he has breathing problem........................................................................
-If.................................John didn't live in the area affected by air pollution, he wouldn't have breathing problem........................................................................................
6>We use eco-friendly products and we can protect environment.
-It we...........................................use eco-friendly products, we can protect environment.......................................................................
7>I think you should volunteer to clean the beach.
-If I were....................................you, I would volunteer to clean the beach.............................................................
8>The air is polluied,so there are breathing problems(leads).
-> The air pollution leads to breathing problems
9>Their children have birth defects because the parents were exposed to radiotion(so)
-> The parents were exposed to radiotion so their children have birth defects
11 i didn't eat lunch , i feel hungry now
=>if i had eaten lunch, I wouldn't have been hungry now
12 it hadn't rained , we would have a better crop
=>but for the rain, we would have a better crop
13 i only come if they invite me
=> unless they invite, I won't come
13 he didn't revise all his lessons , he failed the exam
=>if he had rivised all his lessons, he wouldn't have failed the exam
14 his sister sent her money , so he continued to study
=>but for his sister's money, he wouldn't have contrinued to study
15 the park is over there , only 5 minutes walk
=>if you walk for 5 minutes, you will find the park
16 in case it rain , we'll stay at home
=> if it rains, we'll stay at home
17 let me give you my advice . you should cut down on smoking right now
=> if i were you, I would cut down on smoking right now
18leave me alone or i'll call the police
=>unless you leave me alone, I won't call the police
19 if you arrive at the office earlier than i do , please turn on the air -conditioner
=> should you arrive at the office earlier than I do, please turn on the air-conditioner
\20 the children don't go to school in the snowy weather
=>if it doesn't snow, the children will go to school
21` he died so young otherwise , he would be a famous musician by now
=> had it not been for his dead, he would have been a famous musician by now
22 you must tell me the whole truth or i won't help you
=> unless you tell me the whole truth, I will help you
23 the car breaks down so often because you don't take good care of it
=> were i take good care of it, the car wouldn't break down so often
Nếu không hiểu câu nào thì bình luận ngay ở đây để mình giải thích chi tiết nhé.
11, If I had eaten lunch , I would feel hungry now
12, But for rain , we would have a better crop
13, Unless they invite me, I won’t come
13, If he had revised all his lessons, he wouldn’t have failed the exam
14, But for his sister’s money, he wouldn’t have continued to study
15, If you walk to the park, it will take you 5 minutes
16, If it rains, we’ll stay at home
17, If I were you, I would cut down on smoking right now
18, Unless you lave me alone , I'll call the police
19, Should you arrive at the ofice earlier than I do, please turn on the air-conditioner
20, If it snows , the children won't go to school
21, Had he not died so young , he would have been a famous musician by now
22, Unless you tell me the whole truth , I won't help you
23, Were I you , I would take good care of it
bài có 2 câu 13 nhé bạn !
Rewrite the second sentence so that it has smilar meaning to the first one
1.She couldn't afford to buy the car
->The car is too.....expensive for her to buy...........................
2.I would like you to help me to put the chair away
->Do you mind.........helping me ........to put the chair away........................................
3.If I were you, I wouldn't sweep the house on the work today?
->Do we.........sweep the house on the work today,don't we?...........................................................
5.Learining about other cultures is one of my interests
->I'm.........interested in Learining about other cultures.....................................................................
6.Unless he phones her immediately, he won't get any information
->If......he doesn't phone her immediately, he won't get any information............................................................................
7.It's very difficult to leave here after such a long time
->It isn't.....easy .......to leave here after such a long time.......................................................
8.Let's get together and talk about our presentation before we do it in class
->Why........don't we get together and talk about our presentation before we do it in class...............................................................
1 he can not go out because he has to study for his exam
=> if he doesn't have to study for the exam, he can go out.
2 she is lazy so she can not pass the exam
=> if she isn't lazy, she can pass the exam.
3 he will pay me tonight , i will have enough money to buy a car
=> if he pays me tonight, I will have enough money to buy a car.
4 he smokes too much , that is why he can not get rid of his cough
=>if he doesn't smoke too much, he can not get rid of his cough.
5 she is very shy , so she does not enjoy the pary
=>if she isn't shy, she will enjoy the party.
(Tớ làm 5 câu thôi, mấy câu sau cậu tự làm nhé)
1.if you don't take good care of it, the car breaks down so often
2.if you hurry up, you won't be late
3.if she were very busy, she couldn't help me now
4.if the weather weren't snowny, the children could go to school
5.if you take exercise, you will be fit
6.if you were careful, you would't cut yourself with that knife
7.unless i had time, i would't help you
8.unless you leave me alone, i will call the police
9.if he drives carefullly, dick doesn't often cause accidents
10.if i knew english, i could apply for that job
11. unless you tell me the whole truth, i will help you
12. unless they invited me, i wouldn't come
1 If you take more exercise, you can get fit
2 Unless we get help, we can't do the job
3 You should not to that
4 The sounds from a vacum cleaner can lead to permanent hearing loss
1. If you take more exercise, you will get fit.
2. Unless we get help, we can't do the job
3. You should not to do that
4. The sounds from a vacuum cleaner can lead to permanent hearing loss