优质解答
Unit 1
taller shortar stronger older younger bigger heavier longer thinner smaller
Unit 2
have a fever hurt have a cold have a toothache have a headache have sore throat matter soer tired excited angry happy bored sad
Unit 3
watch(过去式watched) wash（过去式washed) clean(过去式clean) play(过去式play) visit(过去式visited) do(过去式 did) last weekend go(过去式 went) to park go swimming(过去式went swimming) read(过去式read）
go fishing(过去式went fishing) go hiking(过去式went hiking)
Unit 4
lean Chinese sing and dance eat good take climb have buy present row boat see elephant go skiing go skating how get last
Unit 1
taller shortar stronger older younger bigger heavier longer thinner smaller
Unit 2
have a fever hurt have a cold have a toothache have a headache have sore throat matter soer tired excited angry happy bored sad
Unit 3
watch(过去式watched) wash（过去式washed) clean(过去式clean) play(过去式play) visit(过去式visited) do(过去式 did) last weekend go(过去式 went) to park go swimming(过去式went swimming) read(过去式read）
go fishing(过去式went fishing) go hiking(过去式went hiking)
Unit 4
lean Chinese sing and dance eat good take climb have buy present row boat see elephant go skiing go skating how get last