七年級學生可以用以下簡單的英語句子來介紹春節(jié)：

1. Spring Festival is the most important traditional festival in China.春節(jié)是中國最重要的傳統(tǒng)節(jié)日。

2. It usually falls between late January and mid-February, depending on the lunar calendar.春節(jié)通常在農(nóng)歷臘月至正月之間舉行。

3. The festival lasts for 15 days, starting from the first day of the lunar new year.春節(jié)持續(xù)15天，從農(nóng)歷新年的第一天開始。

4. People celebrate Spring Festival by cleaning their homes, wearing new clothes, and decorating their homes with red lanterns and couplets.人們通過打掃房屋、穿新衣服和掛紅燈籠對聯(lián)來慶祝春節(jié)。

5. Fireworks and dragon and lion dances are also common during the festival.春節(jié)期間，放鞭炮、舞龍舞獅也很常見。

6. Families gather together to have a big feast on New Year's Eve and exchange red envelopes filled with money.除夕夜，家人團聚共進年夜飯，互贈紅包。

7. Children usually receive new year's gifts and blessings from their elders.孩子們通常會從長輩那里收到新年禮物和祝福。

8. Spring Festival is also a time for people to wish for good luck, prosperity, and happiness in the coming year.春節(jié)也是人們祈求來年好運、繁榮和幸福的時刻。

9. Besides celebrating the festival, people also visit temples to pray for good fortune and pay respect to ancestors.除了慶祝節(jié)日，人們還會去寺廟祈禱好運，并向祖先祭拜。

10. Spring Festival is a time of joy, reunion, and cultural heritage for Chinese people.春節(jié)是中國人歡樂、團聚和文化傳承的時刻。