Ⅱ. 根据汉语意思完成句子
1. 请提醒我在公共场所保持安静。
me keep quiet in , please.
2. 那句话很有意义。
That sentence .
3. 我们人类又能留下什么呢？
What do we humans ?
4. 植物在我们的生活中扮演着重要角色。
Plants in our life.
5. 老师鼓励我们为公益服务。
Our teachers us to work for the .

Ⅱ. 1. Remind; to; public places 2. makes sense 3. leave behind 4. play an important role 5. encourage; common good

Ⅲ. 短文填空

Signs are very important. You can often see 1. (they) in many places. There are some signs in our 2. (day) lives. The first sign 3. (warn) you not to drive too fast. The second sign 4. (tell) you that you mustn't turn left, but you can turn right. If you see the 5. (three) sign in a shop, you will know that it opens from Monday 6. Friday. You can see the fourth sign in 7. museum. It means “No 8. (photo).” You must keep quiet 9. you see the last sign.
Remember the signs and it will be good for you to live 10. (well).

Ⅲ. 1. them 2. daily 3. warns 4. tells 5. third 6. to 7. a 8. photos 9. when/if 10. better