搜索
CPC’s （中国共产党的）100th birthday
The CPC will have its 100th birthday on July 1, 2021. When it was founded （建立）in 1921, it only had about 50 members. They wanted to save the country from the war. Since its first day, the Party has been trying its best to build a strong and modern country.
The Tokyo Olympics
Because of the COVID-19, the Tokyo Olympics was put off. The Tokyo governor said, “Vaccines （疫苗）have brought a ray of hope and we will be able to enjoy the Games from July 23 to August 8. ” The city is preparing to host the Olympics. The torch （火炬）will travel around Japan and reach Tokyo in July. The athletes （运动员）will take part in 339 events across 33 different sports. The Tokyo Olympics will have five new sports for the first time—baseball, karate （空手道）, skateboard, sports climbing and surfing （冲浪）.
Dubai World Expo （博蓝会）
Dubai is going to hold the World Expo this year. It will last from October 1, 2021 to March 31, 2022. Visitors can enjoy delicious food and other kinds of culture from around the world. We can also learn about the most advanced （先进的）technology of our time. There will be many pavilions （展馆）from different countries and regions （地区）.
Events | Time | Details |
| 1． | On July 1,2021 | It was founded in 1921. The number of the members was about 50 then. Its 2． is to build a strong and modern country. |
| The Tokyo Olympics | From July 23 to August 8, 2021 | It was put off because of the COVID-19. Tokyo is 3． host it. The torch will arrive in Tokyo in July. Five new sports will appear 4． in it. |
| Dubai World Expo | From October 1,2021 to March 31, 2022 | We can enjoy the delicious food and different culture in different pavilions. The most advanced technology can also be 5．. |
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
