在线common roots课程其他-中国考试

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phyll/o-leaf; chlorophyll - a group of green pigments found in leaves; phyllotaxis - the arrangement of leaves on a stem; phyllite - a rock that forms sheets, similar to slate.

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phys-nature, medicine, the body; physical - relating to the body; physician - a doctor; physique - nature and shape of one's body.

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phyt/o/e-plant, to grow; epiphyte - a plant growing independently on the surface of another; hydrophyte - a plant that grows only in water; neophyte - a beginner, especially a person recently converted to a new belief.

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plas/t/m-to form, development, ; protoplasm - something that is the first made or formed, also the living portion of a cell; plastic - able to be formed, especially when warm; plaster - a mixture of lime, sand and water that forms a smooth solid covering for walls.

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plaud, plod, plaus, plos-approve, clap; applaud- to show approval of especially by clapping the hands; explosion- an act of exposing something as invalid or baseless; plausible- worthy of being applauded

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pneum/o-breathing, lung, air, spirit; pneumonia - inflammation of the lungs; pneumatic - using the force of air; dyspnea - difficulty breathing.

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pod/e-foot; podiatrist - a doctor for the feet; podium - a small platform to stand on; tripod - a stand or frame with 3 legs.

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poli-city; metropolis - a large city; police - people who work for the government to maintain order in a city; politics - actions of a government or political party.

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poly-many, more than one; polychrome - with many colors; polyglot - a person fluent in many languages; polygon - shape with 3 or more straight sides.

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pon-place, put; opponent - a person who places him/herself against an action, idea, etc.; postpone - to put off doing something.

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pop-people; popular - appealing to a lot of people; population - all of the people who live in a particular area; populist - a supporter of the rights of people.

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port-carry; export - to carry goods out of a place to another; portable - able to be carried; porter - a person who carries luggage.

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pos-place, put; deposit - to place or drop something; expose to place out into the open for all to see; position - the place where someone is.

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post-after, behind; posthumous - after someone's death; postpone - to delay something; postscript - an addition to an already completed document.

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pre-earlier, before, in front of; preamble - a part in front of a formal document; prepare - to get ready in advance; prediction - a statement foretelling the future.

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pro-before, in front of, ; prognosis - a prediction of what will happen; prologue - a passage before the main part; prophet - a person who foretells the future.

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prot/o-primitive, first, chief; prototype - the first of a kind; proton - on of the very basic parts of an atom; protocol - a first draft from which a document is prepared.

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pseud/o-wrong,false; pseudonym - a fictitious name; pseudoscience - theories presumed without proof of a scientific nature; pseudopregnancy - a false pregnancy.

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psych/o-mind, mental; psyche - the human spirit or soul; psychic - relating to the human mind or someone who has supernatural mental abilities; psychology - the study of the mind.

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pugn/a,-to fight; pugnacious - having a quarrelsome or aggressive nature; repugnant - distasteful, offensive or revolting; pungent - piercing.

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