37页英语三年级上册录音

多给点！

some dinosaurs had wings.thet flew in the sky.

some did not have wings.they walked onland.

2.some dinosaurs had sharp teeth.they ate meat.

some did not have sharp teeth.they ate piants .

3.some dinosaurs swam_they lived near lakes.

some did mot swim_they lived in fiorests.

4.some dinosaurs were heavy,they ran slowly.

some were not heavy.they ran fast.