Cho các phân số: 12/21; 4/98; 36/63; 17/13; 33/77

a) Các phân số tối giản:

b) Các phân số chưa tối giản:

c) Rút gọn các phân số chưa tối giản:

VIDEO 3:  Watch the clip "Managing stress" and fill in each blank with NO MORE THAN TWO WORDS AND NUMBERS from the clip.

1.    One little piece of paper can have a ____________________ effect. Stress is stressful.

2.    First though, take a few deep breaths. In fact, do that any time you feel ______________________.

3.     When danger appears, it can get you out of trouble ____________________.   

4.     Thing is this _________________ state is only meant to last just long enough to get you out of danger.

5.    But here in the _______________________ we stress about different things and for much, much longer.

6.    Take a few more deep breaths because as you now know stress is a _____________________reaction and deep breathing helps to counteract its effects.

7.    Don't stress alone. Talk to someone. __________________ and have a laugh.

8.     You can't laugh and quake with fear at the same time. ________________________ with nature on a big or small scale.

VIDEO 4. Watch the clip “What is the rainforest?” and answer each of the following questions with NO MORE THAN THREE WORDS.

1. What is one essential requirement for the existence of a rainforest?

____________________________________________________

2. How many countries are mentioned as having the largest amount of rainforest in the world?

____________________________________________________

3. How much does it rain per year?

____________________________________________________

4. What percentage of the world's population of plants and animals lives in the rainforests?

____________________________________________________

5. How is the Amazon Rainforest on Earth?

____________________________________________________

6. How many bridges are there over the Amazon river?

____________________________________________________

7. Why would the rainforest never survive in the Arctic regions?

____________________________________________________

VIDEO 2. Watch the clip " GOLDENE KAMERA award speech of Greta Thunberg" and fill in each blank with NO MORE THAN TWO WORDS AND/OR A NUMBER for each blank.

1. We live in a _________________.

2. Children must sacrifice their _________________ in order to protect against the destruction of their future worth of people.

3. It’s too _________________ to save the world while spending trillions of Euros subsidizing fossil fuels.

4. Everyone can _________________their own reality

5. We are a football game or a film gala gets more _________________attention.

6. All injustice will not stand up for the _________________ and for climate justice

7. We can’t do it without you in the _________________  here tonight.

8. You can _________________  turn individuals into movements.

9. There is still _________________  and to fix this.

VIDEO 3. Watch the song “Count on me” and fill in each blank with ONE suitable word.

If you ever (1) ________________ yourself stuck in the middle of the sea,
I'll sail the (2) ________________ to find you
If you ever find yourself lost in the(3) ________________ and you can't see,
I'll be the light to (4) ________________ you

Find out what we're made of
When we are called to help our friends in need

You can count on me like one two three
I'll be there
And I know when I need it I can count on you like four three two
You'll be there
'Cause that's what (5) ________________ are supposed to do, oh yeah

Whoa, whoa
Oh, oh
Yeah, yeah

If you tossin' and you're turnin' and you just can't fall (6) ________________
I'll sing a song
Beside you
And if you ever (7) ________________ how much you really mean to me
Everyday I will (8) ________________ you

Ooh
Find out what we're made of
When we are called to help our friends in need

You can count on me like one two three
I'll…

VIDEO 4. Watch the clip “What is the rainforest?” and answer each of the following questions with NO MORE THAN THREE WORDS.

1. What is one essential requirement for the existence of a rainforest?

____________________________________________________

2. How many countries are mentioned as having the largest amount of rainforest in the world?

____________________________________________________

3. How much does it rain per year?

____________________________________________________

4. What percentage of the world's population of plants and animals lives in the rainforests?

____________________________________________________

5. How is the Amazon Rainforest on Earth?

____________________________________________________

6. How many bridges are there over the Amazon river?

____________________________________________________

7. Why would the rainforest never survive in the Arctic regions?

____________________________________________________

Vì sao Hai Bà Trưng khởi nghĩa ?

quảng đường từ nhà đến chợ dài 500m , quảng đường từ nhà đến trường dài 1km hỏi quảng đường từ nhà đến chợ ngắn hơn quảng đường từ nhà đến trường bao nhiu m

Một máy động cơ có công suất P = 75W, hoạt động trong t = 2h thì tổng công của máy cơ sinh ra là:

A. 550 kJ      B. 530 kJ

C. 540 kJ      D. 560 kJ