Ⅰ.选词填空(有两词多余)
artificial，unconcerned，negative，pessimistic，gloomy，pessimism， indifferent， confident， diligent， optimistic
1．Someone who is optimistic is hopeful about the future or the success of something in particular.
2．It's no accident that diligent people are more likely to succeed.
3．I am confident that everything will come out right in time.
4．He seems unconcerned, but nothing escapes his attention.
5．Pessimism is the belief that bad things are going to happen.
6．The gloomy weather shows no sign of improving.
7．On your second question, I think you're too pessimistic. We should be optimistic about it.
8．When asked for your views about your current job, on no account must you be negative about it.
