I. Make sentences using the words and phrases given.

1. When/ Nam/ ten/ he/ speak/ English/ phone.

WHEN NAM WAS TEN . HE COULD SPEAK ENGLISH ONT HE PHONE.

2. My sister/ write/ poems/ she/ eight.

MY SISTER COULD WRITE POEMS WHEN SHE WAS EIGHT.

3. They/ worried/ that/ some people/ use/ robots/ bad things.

THEY WERE WORRIED THAT SOME PEOPLE WOULD USE ROBOTS FOR BAD THINGS.

4. If/ people/ plant/ more trees/ area/ there/ be/ no floods.

IF PEOPLE PLANT MORE TREES IN THE AREA , THERE WILL BE NO FLOODS.

5. If/ we/ recycle/ old newspaper/ we/ save/ lot/ labour/ tree.

IF WE RECYCLE OLD NEWSPAPER , WE CAN SAVE A LOT OF LABOUR AND TREES.

6. Robots/ not only/ talk/ people/ but / understand/ what/ they/ think.

BOBOTS CAN NOT ONLY TALK TO PEOPLE BUT IT CAN ALSO UNDERSTAND WHAT THEY THINK.

1.When Nam is ten he speak English by phone.

2.If people plant more trees there will be no floods

3.If we recycle to old newspaper we save a lot of labour trees

C. Make sentences using the words and phrases below

1. We/ seel that movies/ ten times.

=> We have seel that movies ten times

2. I/ never/ be / Ha Long Bay.

=> I have never been in Ha Long Bay

3. you/ ever/ eat/ French food?.....

=> You have ever eat a French food

4. Robots / not/ take/ care/ our children/ future...

=> Robot won take care our children in the future

5. Although / we/ try/ best/ we/ not/ win/ the game/ last night.

=> Although we try best, we didn't win the game last night

6.Ann / might/ not / come/ party/ tonight/ because/ she/ busy

=> Ann might not come party tonight because she was busy

7. What/ he/ do / if/he/ want / save / electricity at home?.

=> What did he do if he want save electricity at home ?

8. The air/ not/ be/ so polluted/if/ people/ plant / more trees.

=> The air did not be so polluted if people plant more trees

~ 𝓟𝓱𝓪̣𝓶 𝓝𝓰𝓸̣𝓬 𝓣𝓱𝓪𝓷𝓱 𝓣𝓻𝓪̂𝓶 ~

các câu thì tìm dấu hiệu của thì là được ạ

III. Complete the sentences with the correct form of the verbs in brackets.

1) If we DON'T RECYCLE ( not recycle) paper now, we'll need to cut down more trees in the future.

2) If the local people HAD (have)

fresh water, they wouldn't have to use polluted water.

3) What WOULD HAPPEN ( happen) if radioactive material was not handled properly?

4) If we recycle more household waste, there WILL BE ( be) less damage to the environment.

5) If we DIDN'T UNDERSTAND ( not understand) environmental ptoblems, we would not be able to do anything about them.

6) If the polar ice-caps melted completely, Sea levels worldwide WOULD RISE ( rise) about 60 metres.

7) The amount of plastic in the ocean WILL INCREASE ( increase) if we DON'T TAKE ( not take) action now.

8) These fish WOULDN'T DIE ( not die) if the factory DIDN'T DUMP ( not dump) its toxic waste into the river.

9) There WON'T BE ( not be) enough oxygen if we DON'T PROTECT ( not protect) the rain forests.

10) If I WERE ( be) the President, I WOULD BAN ( ban) billboards in cities in order to reduce visual pollution.

1) There / be / some robots / our hi-tech house / future .

-> There will be some robots in our hi-tech house in the future.

2) They / not might / live / the / Moon .

-> They mightn't live on the Moon.

3) If / we / make / soil / polluted , many / plants / die .

-> If we don't make soil polluted, many plants won't die.

4) You / have / a hi-tech fridge / future ?

-> Will you have a hi-tech fridge in the future ?

5) Thu / do / the test better / if / she study hard .

1. If we_______plant__________(plant) more trees, the air________will be__________(be) fresher.

2. If the soil________is___________(be) polluted, the vegetables__________will die___________(die).

3. Unless he________calls____________(call) me, I__________will stay___________(stay) at home.

4. The weather is not very good. It might__________rain__________(rain) this afternoon.

5. If a student_______recycles________(recycle) the papers, he_______will save_________(save) energy.

6. I_____________didn't clean____________(not clean) my room for a long time.

1. If we_________plant________(plant) more trees, the air___________WILL BE_______(be) fresher.

2. If the soil________IS___________(be) polluted, the vegetables____________WILL DIE_________(die).

3. Unless he_______CALLS_____________(call) me, I__________WILL STAY___________(stay) at home.

4. The weather is not very good. It might_________RAIN___________(rain) this afternoon.

5. If a student_________RECYCLE______(recycle) the papers, he____________WILL SAVE____(save) energy.

6. I____________HAVEN'T CLEANED_____________(not clean) my room for a long time.

1. If we plant more trees, the air will be fresher.

2. If the soil (đất) was polluted, the vegetables will die .

3. Unless he calls me ,I will stay at home.

4. The weather is not very good. It might rain this afternoon.

5. If a student recycles the papers ,he will save energetic.

6. I haven't cleaned my room for a long time.

If we plant more trees, our neighborhood will be greener.

If we cycle to school every day, we will keep the air clean and fresh. 

If we keep hunting animals, they will disappear soon.

If we cut down all the trees, there will be floods.

If we use buses, we will reduce the pollution.

IV.Make the first conditional sentences, using the words and phrases given.

1. If/ we/ plant/ more trees/ neighbourhood/ greener.

=> If we plant more trees, our neighborhood will be greener.

2.  If/ we/ cycle/ school/ every day/ we/ keep/ air/ clean and fresh.

=> If we cycle to school every day, we will keep the air clean and fresh. 

3. If/ we/ keep/ hunt/ animals/ they/ disappear/ soon.

=> If we keep hunting animals, they will disappear soon.

4. If/ we/ cut down/ all/ trees/ there/ floods.

=> If we cut down all the trees, there will be floods.

5. If/ we/ use/ buses /we/ reduce/ pollution.

=> If we use buses, we will reduce the pollution.

1.Will robots in the future be able to talk to humans?

2.You will create more rubbish if you do not recycle glass and bottles.

3.Reusable bags are better than plastic bags because they are made of natural materials.

ʂεμɭ❦