1. The grades you get are based on(以……为基础)your attitude(态度) to study.
2. On the stage, the man wearing a frightening mask scared(吓唬) the child into crying, which had an effect on(对……有影响) his performance.
3. In autumn, the ground is covered with(被……覆盖) fallen leaves due to(由于) the strong wind.
4. Fortunately(幸运地), he, rather than (而不是)his competitor, won the game in the National Games.
5. People tend to target(把……作为目标) trees for profit, as a result, hundreds of tree species face extinction(灭绝).