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Exercise 4 Read the text and decide whether the statements are TRUE, FALSE or DOESN’T SAY.   Shopping with mother?   I’m Cathy Huang and I’m 16. Welcome to my blog. This week I’m writing about shopping with your mother. Thanks for reading! Have you ever been shopping with your mother? I’d like to hear you say ‘Yes, and it was fun.’ But are you really telling the truth? I went to the shopping centre yesterday with my mum. She wanted to buy me a dress for her birthday...
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Exercise 4

Read the text and decide whether the statements are TRUE, FALSE or DOESN’T SAY.

 

Shopping with mother?

 

I’m Cathy Huang and I’m 16. Welcome to my blog. This week I’m writing about shopping with your mother. Thanks for reading!

Have you ever been shopping with your mother? I’d like to hear you say ‘Yes, and it was fun.’ But are you really telling the truth? I went to the shopping centre yesterday with my mum. She wanted to buy me a dress for her birthday party. She’s going to be 50 next weekend. So what’s the problem with that? I hear you ask.

Well, the problem is, my mother always wants to buy me what she wants, not what I want. And we want very different things. I tried on a beautiful red dress, but she said it didn’t fit.   (It was very short!) Then I tried on a long skirt, but she didn’t like the colour. (It was purple!) I was in and out of changing rooms all day and we couldn’t agree on anything. She rolled her eyes and complained about everything I tried on. It was so depressing. And so boring. By 5 o’clock my feet were killing me and I still didn’t have a dress for the party.

Next time Mum wants to take me shopping, I’m going to tell her my room is a terrible mess and I have to tidy it now. I know it’s not very nice to lie, but shopping with my mother is not fun. And, I’ve just seen a fantastic dress on eBay. It’s so chic. I’m going to look amazing at Mum’s party.

Statements

True / False / Doen’t say

1. Cathy and her mum went to the shopping centre yesterday.
2. Cathy’s mum wanted to buy her a skirt.
3. Cathy’s mum is 50 next weekend.
4. Cathy’s mum always buys too many clothes.
5. Cathy tried on a beautiful red dress.
6. Cathy and her mum agreed on everything.
7. Cathy thought it was an exciting shopping trip.
8. By 5 o’clock, Cathy wanted to go home.
9. Cathy doesn’t want to go shopping with her mum again.
10. Cathy isn’t going to her mum’s birthday party.

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4
27 tháng 10 2023

1. Cathy and her mum went to the shopping T centre yesterday.
2. Cathy’s mum wanted to buy her a skirt. T
3. Cathy’s mum is 50 next weekend.T
4. Cathy’s mum always buys too many clothes. Doesn't say
5. Cathy tried on a beautiful red dress. T
6. Cathy and her mum agreed on everything. F
7. Cathy thought it was an exciting shopping trip.F
8. By 5 o’clock, Cathy wanted to go home.Doesn't say
9. Cathy doesn’t want to go shopping with her mum again.T
10. Cathy isn’t going to her mum’s birthday party. F

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27 tháng 10 2023

\(1-True\\ 2-False\\ 3-False\\ 4-False\\ 5-True\\ 6-False\\ 7-False\\ 8-True\\ 9-True\\ 10-False.\)

 

Đề thi đánh giá năng lực

26 tháng 10 2023

Ta có: \(n_{H_2}=0,04\left(mol\right)\Rightarrow n_Y=0,08\left(mol\right)\)

Mà: mY - mH2 = 2,48 ⇒ mY = 2,56 (g)

\(\Rightarrow M_Y=\dfrac{2,56}{0,08}=32\left(g/mol\right)\)

→ Y là CH3OH. 

\(\Rightarrow n_X=n_Y=0,08\left(mol\right)\)

Ta có: \(n_{H_2O}=\dfrac{3,96}{18}=0,22\left(mol\right)\)

mX = mC + mH + mO ⇒ mC = 5,88 - 0,22.2 - 0,08.2.16 = 2,88 (g)

\(\Rightarrow n_{CO_2}=n_C=\dfrac{2,88}{12}=0,24\left(mol\right)\)

⇒ n este không no = 0,24 - 0,22 = 0,02 (mol)

⇒ n este no = 0,06 (mol)

Gọi: CTPT của este không no là CnH2n-2O(n ≥ 5) và este no là CmH2mO2 (m > 2)

BTNT C, có: 0,02n + 0,06m = 0,24

⇒ n + 3m = 12

Với n = 5, m = 7/3 là thỏa mãn.

→ C5H8O2: 0,02 (mol)

\(\Rightarrow\%m_{C_5H_8O_2}=\dfrac{0,02.100}{5,88}.100\%\approx34,01\%\)

 

 

24 tháng 10 2023

23345

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Một con lắc đơn dao động với biên độ góc \(\alpha\) nhỏ. Chu kì con lắc phụ thuộc vào cả chiều dài và vị trí nơi đặt con lắc trên mặt đất.

Khi đó chu kì áp dụng theo công thức: \(T=2\pi\cdot\sqrt{\dfrac{l}{g}}\)

Với chiều dài \(l\) không đổi và tỉ lệ với \(T^2\).

23 tháng 10 2023

Một con lắc đơn dao đọng với biên độ góc a nhỏ.Chu kì con lắc phụ thuộc vào cả chiều dài và vị trí nơi đặt con lắc trên mặt đất.

Khi đó chu kì áp dụng theo công thức:\(\overline{T+2\pi.\sqrt{\dfrac{l}{g}}}\)

Với chiều dài \(\overline{l}\)không đổi và tỉ lệ với\(^{T^2}\)