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Chủ đề:
Bài 11: Bài luyện tập 2Câu hỏi:
7. Tìm hóa trị của nguyên tố (hay nhóm nguyên tử) :
a/ Tìm hóa trị của Fe, Cu, (SO4) trong các hợp chất có CTHH sau: FeCl3, FeO, Cu2O, Cu(NO3)2, Na2SO4,
b/ Tìm hóa trị của S, N trong các hợp chất có CTHH sau: SO3, H2S, N2O, NO, NO2, N2O5.
8. Lập CTHH và tính phân tử khối của hợp chất được tạo bởi :
Al và Cl
P(V) và O
S(IV) và O
Cu(II) và S(II)
K và OH
Ca và CO3
Fe(III) và SO4
Na và PO4
9. Xác định CTHH đúng, sai, sửa sai và tính phân tử khối của các chất.
STT | CTHH | ĐÚNG/ SAI | SỬA SAI | PTK |
1 | CaCl |
|
|
|
2 | Na2O |
|
|
|
3 | Ba2CO3 |
|
|
|
4 | ZnCl2 |
|
|
|
5 | Mg2O |
|
|
|
10. Viết CTHH của các đơn chất sau: hidro, natri, oxi, clo, nhôm, kali, đồng, sắt, lưu huỳnh, photpho, nitơ, cacsbon, canxi, magie:
11. Lập CTHH (lập nhanh) của các hợp chất tạo bởi :
a. Các nguyên tố Na, Mg, S(IV), Al, P(V), Cu, Ca với O:
b. Các nguyên tố K, Ba, Fe(III), Zn với Cl:
c. Các nguyên tố Na, Al, C, Fe(II), Zn với nhóm SO4:
Chủ đề:
Unit 15 : ComputerCâu hỏi:
1. The tent shows attract my sister most of all.
-> My sister ………………………………………………………………………………
2. No one saw him at school yesterday.
-> He ……………………………………………………………………………………..
3. His teacher has just given him a new school bag.
-> A new school bag ……………………………………………………………………..
4. I don’t do tests as carefully as he does.
-> He does ………………..….…………..……….…………….…………………………
5, Jack is taller than Peter.
-> Peter is not so …………………………………………………………………………
6, Mary doesn’t learn as well as Daisy.
-> Daisy learns ……………………………………………………………………………
7, It is interesting to go out with friends at weekends.
-> Going out ………………………………………………………………………………
8, She enjoy going swimming.
-> She is interested in …………………………………………………………………….
9. Water these trees or they will die.
-> If you …………………………………………………………………………………..
10, Work hard and you will pass your exam.
-> If you……………………………………………………………………………………
11, She didn’t eat much though she was hungry.
-> In spite of ………………………………………………………………………………
12, Despite the high prices, my daughters insist on going to the movie.
-> Although ……………………………….
(MONG CÁC BẠN GIÚP MÌNH NHA)
Chủ đề:
Luyện tập tổng hợpCâu hỏi:
1. The tent shows attract my sister most of all.
-> My sister ………………………………………………………………………………
2. No one saw him at school yesterday.
-> He ……………………………………………………………………………………..
3. His teacher has just given him a new school bag.
-> A new school bag ……………………………………………………………………..
4. I don’t do tests as carefully as he does.
-> He does ………………..….…………..……….…………….…………………………
5, Jack is taller than Peter.
-> Peter is not so …………………………………………………………………………
6, Mary doesn’t learn as well as Daisy.
-> Daisy learns ……………………………………………………………………………
7, It is interesting to go out with friends at weekends.
-> Going out ………………………………………………………………………………
8, She enjoy going swimming.
-> She is interested in …………………………………………………………………….
9. Water these trees or they will die.
-> If you …………………………………………………………………………………..
10, Work hard and you will pass your exam.
-> If you……………………………………………………………………………………
11, She didn’t eat much though she was hungry.
-> In spite of ………………………………………………………………………………
12, Despite the high prices, my daughters insist on going to the movie.
-> Although ……………………………….
Chủ đề:
Luyện tập tổng hợpCâu hỏi:
Well, I think that living in Bangkok is very exciting. I haven’t lived here all my life. My family came here when I was there. But now it is my home. Nearly all my friends live here. Bangkok, our capital, is very big. From morning till night, there are crowds of people on the main streets. Some parts of the city are very noisy. I have a long journey to school everyday, but I don’t mind because it is so interesting. There is always something happening in the streets. There are all kinds of people selling things….fruits, flowers, cooked food, clothes- everything you could imagine. I really enjoy the excitement of the crowded streets and large modern buildings. I love walking around the streets at the weekend with some other boys from my class. | 1, When did the writer move to Bangkok?(When he was three months old / When he was in grade three / At the age of three / At the age of thirteen) 2, What does the word “main” in paragraph 2 mean?(quiet / major / minor / clean). 3, Why doesn’t the writer mind the long journey to his school?(Because he travels by bus / Because he was selling fruits / Because he can enjoy cooked food / Because he can see many interesting things in the streets.) 4, Which of the following sentences is NOT true ?(The writer was born in Bangkok / Bangkok is the capital city of Thailand / The writer’s house is very far from his school / The main streets in Bangkok are crowded and busy.) 5, Who does the writer walk around the streets at weekend with? (His sister / his cousins / his classmates / his brother) |