1 Round-Up, p. 54, ex. 13.

2 Kid’s Box, Activity Book, p. 67, ex. 11 and 14.

3 Learn the words: insect, pond, stream, habitat, riverbank (from Kid’s Box, Pupil’s Book, p. 67).
If you don’t know a word, look it up in the dictionary https://dictionary.cambridge.org/dictionary/english-russian/