3. (page 83 Biology 7): Please tell if frogs are suffocated, if we put frogs in a bottle full of water, the head wishes down? From the experimental results, what conclusions can you draw about frog respiration?
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PT
23 tháng 1 2019
Frogs are amphibians, meaning that they can live both in and out of the water. All frogs lay their eggs in the water, and a female frog will lay thousands of eggs at a time. When the eggs hatch, (1)___babies__ come out are not frogs but rather tadpoles. Unlike frogs, tadpoles must spend all their time in the (2)___water__, being unable to breathe air at this point. Tadpoles also lack arms and legs, and have a tail which they (3)___disappear__ as they develop into frogs. Tadpoles are herbivours, which means that they only eat (4)__plants___. Specially, tadpoles eat algae, a water plant which can be harmful if there is too much of it. (5)___Therefore__, tadpoles are important to keep most ponds healthy.
As tadpoles develop into mature frogs, they develop the lungs which allow them to (6)___get___ air, and the arms and legs which allow them to move across (7)___ground __. At this point the mature frogs leave the ponds, (8)__so___ some species stay near the water for their entire lives. Mature frogs are carnivores, (9)__eating___ insects and small fish. Most frogs hunt using their long, sticky tongueto catch their prey. Some species of frogs have developed extremely strong poisons to defend (10)___themselves__ from their other animals.
21 tháng 10 2018
A tour guide is showing tourists a Roman camp near Hadrian's wall in the North of England. Put in the spaces with suitable prepositions.
Listen(1)..to.... me now, please. Can you hear me? I'm going to talk (2)..to.... you today (3)..about... daily life of Romans living in the camp. I think you will be surprised (4)..about.... some of the things that you see. This part of the soldiers and their kitchen. Imagine fifteen cooks busy (5)...with.... the meals for the food. And they were families! The cook depended (6)...on.... locals farms (7)...for.... the food, and they were brilliant (8)...on...... keeping food for a long time, using salt for example. If you're interested (9)..in...... cooking. Please ask (10)..for... more information (11)...about...... the tourist centre. Shall we continue? Who are we waiting (12)..for.... ? We're not sure (13)...about..... this part of the camp, but we think it was a bathing are, and we know that the Romans were proud (14)....of... their bathrooms. I expect that the people living here were grate full (15)...to... hot water in winter. Let's move on. In a moment we'll reach the family part of the camp, and I'll let you look around (16)...on.... yourselves.
CL
3 tháng 2 2018
VIII- Join each of the following pairs of sentences with “or, and, but, so or because”
1. I told a joke. Nobody laughed.
I told a joke, but nobody laughed
2. You must study harder. You will go into another class.
You must study harder or you will go into another class
3. The city suffers from air pollution. The city suffers from water pollution.
The city suffers from air pollution and water pollution
4. I knew her family. I did what I could for her.
I knew her family so i did what i could for her
5. We can’t afford energy-saving light bulbs. The light bulbs are too expensive.
We can't afford energy-saving light bulbs because the light bulbs are too expensive
IX. Put the verbs in the right tense or form
1. If he (learn) ______learned______ to drive, he would be able to drive his car.
2. They will lose their way if they (not have) ______don't have______ a map.
3. If the students (attend) ____attend_____ Quang Trung school, they have to wear uniform.
4. Frogs and toads (die) ____will die______ a lot if people continue to use electricity to catch fish.
5. If Lan (not have) ____doesn't have______ a bicycle, she will not go camping with us.
6. His father would buy that house if it (not be) ______weren't________ expensive.
7. If students do not throw plastic bags anymore, our school yard (clean) _____will be clean______.
8. I would do the test in five minutes if it (not be) ______weren't_______ difficult
3 tháng 2 2018
IX. Put the verbs in the right tense or form
1. If he (learn) _____learned_______ to drive, he would be able to drive his car.
2. They will lose their way if they (not have) ______don't have_______ a map.
3. If the students (attend) ____attend_____ Quang Trung school, they have to wear uniform.
4. Frogs and toads (die) _____will die_____ a lot if people continue to use electricity to catch fish.
5. If Lan (not have) ____doesn't have______ a bicycle, she will not go camping with us.
6. His father would buy that house if it (not be) _______weren't_______ expensive.
7. If students do not throw plastic bags anymore, our school yard (clean) _____will clean______.
8. I would do the test in five minutes if it (not be) ________weren't_____ difficult
22 tháng 4 2018
1 Recycling bins
2 Causes breathing problems
3 Makes fish die
4Turn off the lights before going out
NN
24 tháng 7 2018
1.If you (go)go away, please write to me
2.If you (be)had been in. I would have given it to you
3.If he (eat)eats another cake, he will be sick
4.I (not do)wouldn't do that if I (be)were you
5.If he (take)takes my advice, everything can go well
6.I would have come sooner if I (know)had known you were here
7.He never does homework. If he (do)did his homework, he (not worry)wouldn't worry about this exam
8.It's too bad we lost the game. If you (play)had play for us, we (win) would have won
9.What will you (do)do if she refuses your invitation
10.If today (be)were Sunday, we(go)would go to the beach
11.I wish I (see)had seen her off at the airport yesterday
12.Tom wishes he (have)had enough money to buy a new car now
13. Mary wishes she (become)would become an astronaut someday
14.He wishes he ( not buy)didn't buy that old car
15.If we (pollute)pollute the water, we will have no water to use
16.If we cut down trees in the forest, there (be)will be big flood every year
17.If he (not pass)doesn't pass the driving test, we (be)will be disappointed
18.I (not write)won't write to you if you (not send)don't send me your address
19.The sea (get)gets warmer if the earth (get)gets warmer
20.If we (not protect)don't protect the animals, they (kill)will be killed
21.Our lives(destroy)would destroy if the earth didn't go round
22.We will go for a picnic if the weather(be)is fine tomorrow
23.If I were you I (travel)would travel around the world
24.If there were flying saucers, there (be)would be traces of their landing
25.I would take photos of UFOs if I (see) saw them
26.What (you say)would you say if I offered you a job
27.The children always (get)get frightened if they watch horror films
28.If it (not be) wasn't for you, I would be late
29.I can't help feeling sorry for the hungry children. If only there (be)was peace in the world
30. Were I to become president, my first act (be)would be to help the poor
31.If he (listen)listened to his father's advice, he would still be working here
32.If she hadn't stayed up late lastnight, she (not be)wouldn't have been tired now
KY
5 tháng 3 2020
XV. Put the verbs in brackets into the correct form or tense
81. We _____wouldn't tell______ ( not tell ) you the truth if you are scared
82. She _____hasn't receive ______ (not receive ) any letter from Mark, yet
83. Children are fond of (play) playing
84. She's tall enough (play) to play sports
85. It's glad (meet)to meet you.
86. She asked me (tell)to tell the truth.
87. The stranger left the house without (say)saying
88. Don ‘t let them ( go ) goout at night
89. You’d better (not drink)not drink that water
90. My mother suggest we (get)get up early and (do) do morning exercise
91. My teacher would rather we (read)read alot of English books
92. This is the most interesting film I (watch)have ever watched
93. I am sure you are capable of _____passing______ (pass) the exam
94. Jonh (wash ) _____is washing______ his hands. He (repair) has just repaired
5 tháng 3 2020
giup minh lm cac cau tiep theo vs 2h nop ma con 6 bai nua
2 tháng 8 2019
1,WILL HAVE
,2WILL LET
3,WILL DIE
4,GET
5,RAINY
6,IS NOY
7,WILL BE
8,COMES
3 tháng 8 2019
1. What are you going to do if you (have) will have a holiday?
2. If i can go tomorrow, I (let) will let you know
3. If flowers don't get any water, they (die) will die
4. If i (get)get a headache, I usually take some aspirins
5. I will go to the party unless it (rain) rainy
6. She will buy the car as long as it (not be) will be too expensive
7. Everything (be) will be provided you tell the truth
8. If he (come)comes please tell him that I'll be back in a few minutes
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In this case, do your own experiment to answer
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