HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
Vũ Nương-nàng là ngọc Mị Nương,là cỏ Ngu Mĩ,là ánh sáng là hương thơm của tác phẩm
a)\(\sqrt{\left(2-\sqrt{3}\right)^2}+\sqrt{4-2\sqrt{3}}\)
\(=2-\sqrt{3}+\left[\left(\sqrt{3}\right)^2-2\sqrt{3+1^2}\right]\)
=\(2-\sqrt{3}+3-2\sqrt{3}+1\)
=6-3\(\sqrt{3}\)
b)\(\left[3-\sqrt{\left(\sqrt{3-1}\right)^2}\right]-\sqrt{147}\)
=\(\left[3-\sqrt{3}+1\right]^2-7\sqrt{3}\)
=\(\left(2\sqrt{3}\right)^2-7\sqrt{3}\)
=12-7\(\sqrt{3}\)
If you live in a city, you probably see many people, hear the (1) ........noise............ of traffic, and smell the pollution (2) .................from................. cars and factories.We are entering a new time in (3) .........the............. history of the world. Before this, most (4) ...........people....... were farmers.They lived in the country. Now many people are leaving the farms and moving into the cities. They are looking for better jobs. THe cities are growing very quickly. Most cities are very crowded.People are driving more cars, burning more fuel, (5) ..........using............ more water, eating more food, making more garbage, and producing more things in factories than (6) ............................. before.Life is becoming difficult.
Some governments are trying to plan the future \. They are building new roads , putting (7) ....up.................. new houses, looking for more water, and limiting growth in certain areas. Still, city planners are getting worried .People are crowding into the cities (8).......faster................ than cities can take them. The cities are running out (9)...........of................... room. WHat is the answer to this problem?
1. A. common B. regular C. unusual D. fixed
2. A. deal with B. get over C. look through D. find out
3. A little B. less C. more D. fewer
4. A. care for B. show around C. set up D. pull down
5. A. urban B. central C. capital D. local
6. A. cooking B. supporting C. helping D. serving
1. He goes to school by bike every day.
2. Last night, my father arrived home at half past nine.
3 .The car looks very clean Has Ba wash it?
4. I am learning English at the moment.
5. My sister enjoys cooking dinner very much.
6. The 28th SEA Games was held in Singapore a month ago.
7. If the rice paddies are polluted, the rice plants will die.
8. Nam wishes he could speak English well