vocabulary
preserve
保存する
仮定法過去完了の公式
If S had 過去分詞~, S (would/ could / might) have 過去分詞
日本の人々はそれらを乾燥させることで食品を保存してきました。People in Japan have preserved foods ( )( ) them.
by drying
microorganism
微生物
If they ( not preserve ) these foods, they ( cannot survive ) the severe winters.
had not preserved / couldn't have survived
They ( )( )( )( )( ).
古代
ancient times
Dried kombu, dried shiitake, and dried bonito are 【 that / for / Japanese soup stock / essential / are / making / three items 】.
Dried kombu, dried shiitake, and dried bonito are three items that are essential for making Japanese soup stock.
microorganisms are not active any longer.
= microorganisms are ( )( )( ).
microorganisms are no longer active.
essential
people [ to / fish and shellfish / made / thought / sun-dried / are / have ] near their shell mounds.
People are thought to have made sun-dried fish and shellfish near their shell mounds.
それらは軽く、ほとんど場所を取らない
They are ( 1 ) and ( 2 ).
They are ( light ) and ( take up little space ).
栄養素
栄養
nutrients
nutrition
もし昨日あなたがここに来てくれていたら、私はあなたに彼女を紹介しただろう。
If you had come here yesterday, I would have introduced her to you.
天日干しは、食品の含有量を１０％未満に減らします。
Sun drying ( 1 ) the ( 2 ) of food ( 3 )
( 4 ) ( 5 ) 10%.
Sun drying ( lowers ) the ( content ) of food ( to ) ( less ) ( than ) 10%.