5.看起来……seem+(to be)+ adj. 6. 到达某地arrive in+大地点 / arrive at+小地点 7. 决定去做某事decide to do sth. 8. 尝试做某事try doing sth 尽力去做某事try to do sth. 9. 忘记做过某事forget doing sth. 忘记做某事forget to do sth...