7月4日托福真题及答案.docVIP

7月4日托福真题及答案

一、单项选择题（总共10题，每题2分）

1.Whichofthefollowingisarenewableenergysource?

A.Coal

B.Naturalgas

C.Solarenergy

D.Nuclearenergy

Answer:C

2.Theprocessbywhichplantsconvertlightenergyintochemicalenergyiscalled:

A.Photosynthesis

B.Respiration

C.Fermentation

D.Nitrogenfixation

Answer:A

3.Whatistheprimaryfunctionofthemitochondriainacell?

A.Proteinsynthesis

B.DNAreplication

C.Energyproduction

D.Celldivision

Answer:C

4.WhichplanetisknownastheRedPlanet?

A.Venus

B.Mars

C.Jupiter

D.Saturn

Answer:B

5.Thechemicalsymbolforgoldis:

A.Au

B.Ag

C.Fe

D.Cu

Answer:A

6.WhatisthemaincomponentoftheEarthsatmosphere?

A.Oxygen

B.Nitrogen

C.Carbondioxide

D.Helium

Answer:B

7.Theprocessofconvertingrawmaterialsintofinishedproductsisknownas:

A.Consumption

B.Production

C.Distribution

D.Marketing

Answer:B

8.Whichofthefollowingisaprimarysourceoffossilfuels?

A.Solarpanels

B.Windturbines

C.Coalmines

D.Hydroelectricdams

Answer:C

9.Thestudyoflivingorganismsandtheirinteractionswiththeenvironmentiscalled:

A.Ecology

B.Geology

C.Chemistry

D.Physics

Answer:A

10.Whatisthescientifictermforthegreenhouseeffect?

A.Globalwarming

B.Acidrain

C.Ozonedepletion

D.Eutrophication

Answer:A

二、多项选择题（总共10题，每题2分）

1.Whichofthefollowingarerenewableenergysources?

A.Solarenergy

B.Windenergy

C.Coal

D.Geothermalenergy

Answer:A,B,D

2.Whatarethemainstagesofphotosynthesis?

A.Light-dependentreactions

B.Light-independentreactions

C.Mitosis

D.Meiosis

Answer:A,B

3.Whichorganellesarefoundinplantcellsbutnotinanimalcells?

A.Chloroplasts

B.Mitochondria

C.Ribosomes

D.Cellwall

Answer:A,D

4.WhatarethemajorcomponentsoftheEarth