1. (2020六下·深圳期末) 请认真阅读下面的图表信息，判断句子的正误。

Name	Last year	Now	Last year	Now
Peter	42kg	48kg	141cm	145cm
Sally	40kg	42kg	140cm	144cm
Sam	50kg	45kg	143cm	147cm

1. （1） Peter was 141cm last year and 144cm now.
3. （2） Sally is taller this year.
5. （3） Peter was lighter than Sam last year.
7. （4） Sam was heavier last year than this year.
9. （5） All the three students are heavier this year than last year.