alga

alga — noun

1. a very simple organism that lives in water or damp places and gets its energy fr

1.名詞B2
釋義

a very simple organism that lives in water or damp places and gets its energy from sunlight through photosynthesis. Algae range from single cells too small to see without a microscope to large seaweeds many metres long.

例句

Lakshmi cleaned the green alga from the walls of her fish tank.

countable noun: an alga / the alga

Under the microscope, a single alga drifted slowly through the water.

collocation: a single alga

同義詞
  • seaweed

    refers only to large marine algae, while alga covers all types from single cells to giant kelp

  • pond scum

    informal term for floating mats of green algae on still or stagnant water

  • phytoplankton

    specifically microscopic algae drifting in oceans and lakes, not attached forms

文法句型

an alga

the alga

a type of alga

常見錯誤

❌I saw many alga in the pond.
✅I saw a lot of alga in the pond.
💡'alga' is the singular form; the plural is 'algae' (pronounced AL-jee).
❌The algaes are spreading fast.
✅The algae are spreading fast.
💡'algae' is already the plural; never add -s to it.