chuẩn cmnr 

I. Hãy viết lại các câu sau sao cho nghĩa của chúng không đổi

1. This table is big.

It's a big table.

2. Lan is eleven

Lan is eleven years old.

3. I'm Minh

My name's Minh.

4. It's a small house

That is a small house.

5. Is your clock small ?

Is it  a small your clock ?

II. Hãy diễn đạt các mốc thời gian sau bằng chữ

1. 6 : 00 - six o'clock

2. 8 : 30 - half past eight

3. 9 : 45 - a quarter to ten

4. 5 : 10 - five ten

5. 7 : 15 - a quarter past seven 

6. 10 : 20 - twenty past ten

7. 12 : 50 - fifty to one

8. 4 : 55 - four fifty-five

9. 11 : 00 - eleven o'clock

10. 10 : 25 - ten twenty-five

III. Sắp xếp các từ dưới đây thành câu hoàn chỉnh

1. is / my / this / not / pen

=>This is not my pen.

2. dressed / gets / he / at / six o'clock

=>He gets dressed at six o'clock.

3. does / school / how / floors / many / your / have ?

=>How many floors does your school have ?

4. fece / wash / does / what / the / he / time / his ?

=>What time does he wash his face ?

5. small / bis / or / is / the / bag ?

=>Is the bag small or big

Một tấm đề can hình chữ nhật được cuộn tròn lại theo chiều dài tạo thành một khối trụ có đường kính 50cm. Người ta trải ra 250 vòng để cắt chữ và in tranh cổ động, phần còn lại là một khối trụ có đường kính 45cm. Hỏi phần đã trải ra dài bao nhiêu mét ?

Giải: Vì: \(840=2^3.3.5.7\)

              \(150=2.3.5^2\)

              \(990=2.3^2.5.11\)

Vì: \(UCLN\left(840,150,990\right)=2.3.5=30\)

840=2³.3.5.7

150=2.3.5²

990=2.3².5.11

=>ƯCLN(840;150;990)=2.3.5=30

a/My name is Nhu.
b/I'm boring.
c/She is a worker.
d/She is thirty nine.
e/He is a worker too.
f/He is forty.
g/I'm in grade 7 and class 7A8.
h/My teacher name's Lieu.

Welcome to my house.
I live in a big house in the country.It's very nice and large. My house has two floors. We have two rooms in on the ground floor : Living room, kitchen and bathroom. The biggest room in my house is the living room. There are some photos of my family on the wall. I love cooking, so the kitchen is one of my favourite rooms. There is a gas table and a refrigerator in the kitchen. We have the bath room so big, because we use this bathroom for many purposes, including washing machine... At the second floor, we have two bedrooms. One of the bedrooms is for me. There is one wardrobe next to the bed. There is a table lamp on the table. There is a chair near the table. There is a bookcase in it, too. It is between the bed and computer. I was born and grew up in this house, although my house is not beautiful, but it's always the place fully loving and warming to me. I love my house very much......

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