The COVID-19 epidemic(新冠疫情)is still spreading rapidly throughout the world. Luckily, it is under control in China with the efforts of our government and all the people. However, we should still be careful in our daily life. There’re some rules for us to follow.
1 Get vaccinated (打疫苗)
Since there’s still no special medicine to cure(治愈) COVID-19,
government is providing available vaccine(疫苗)for everyone in our country. If you’re over 18 years old and in good health, you can get vaccinated near your community.
2 Wear masks(口罩)
People have been used to wearing masks since the epidemic broke out. It is summer now, maybe wearing masks in hot weather makes you feel uncomfortable. However,
So whenever you go out, don’t forget to put on your mask. You may look cooler with a mask on!
3 Wash your hands
4 Keep safe social distance(距离)
You’d better not go to crowded places. The summer vacation is beginning. If you have to go to the stores, movies, parties, supermarkets, etc, besides wearing masks, remember to keep social distance.
Anyway, take good care of yourself and live a safe and happy life!
A.Wash your hands as often as possible. |
B.But you have to pay! |
C.we don’t need to do anything about it. |
D.What’s more, it is free! |
E.Avoid getting too close to other people. |
F.the vaccine is the most important way to prevent it. |
G.it is still a good way to stop the virus(病毒) from spreading among people. |

同类型试题

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2


y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

