英语翻译①毫无疑问,当时老师对同学们的表演评价很高.（doubt　,think highly of）　　②老实说,那个梦

答案正确,放心使用.鉴于有这么多道题,鼓励补给奖赏分：
①毫无疑问,当时老师对同学们的表演评价很高.（doubt　,think highly of）　
Without a doubt, the teacher thought highly of the students' performance.
②老实说,那个梦想当歌唱家的青年人是他自己.（dream of）　
To tell you the truth, the youth who dreamed of becoming a singer was he himself.
③现在大熊猫正在四川卧龙自然保护区受到保护.（protect）
Now giant pandas are protected in the Sichuan Wolong Natural Reserve.
④这部小说是以历史事实为根据的.（base on）　
This novel is based on historical facts.
⑤有了电脑的帮助,你会发现处理和分享信息不难的.（deal with ,share）
With the help of a computer, you won't find it difficult to deal with and share information. (注：这里的"处理"本来用process才更合适,相信是你的老师或课本出错题了.)