八年级英语上册UNIT 8 How do you make a banana milk shake单元测试卷（人教辽宁版）.docVIP

PAGE

PAGE1

八年级英语上册UNIT8Howdoyoumakeabananamilkshake单元测试卷

第一部分选择题(共50分)

一、阅读理解(共20小题，每小题2分；满分40分)

第一节阅读下面语言材料，从每题所给的A、B、C、D四个选项中选出最佳选项。

A

Boysandgirls,letsdoanexperiment(实验)intodayslesson.

Materials:Aglass,water,anegg,salt

Instructions:

1.Filltheglassover2/3fullwithwater.

2.Droptheeggcarefullyintotheglassandwatchitgoingdowntowardsthebottom.

3.Taketheeggoutandaddabout5spoonsofsalt.Testtoseeiftheegggoesup.

4.Addmoresaltiftheeggisstillatthebottom.

Thesciencebehindit:

Thingsgodowninthewaterwhentheyaredenserthanthewater.Wemakethewaterdenserbyaddingsalt.Oncethewaterisdenserthantheegg,theegggoesup.

Youcanalsotryotherthingstoseeifyoucanhavethesameresult.

1.Whatkindoflessonarethestudentshaving?

A.Maths. B.Biology.

C.Physics. D.Geography.

2.Howmanystepsdoestheexperimentneed?

A.3. B.4.

C.5. D.6.

3.Whichofthefollowingistheresultyoucanseeafteraddingsaltinwater?

4.Whatdoestheunderlinedword“denser”probablymean?

A.Faster. B.Slower.

C.Lighter. D.Heavier.

B

Everyoneisonadiet(节食).Doesthatsoundfunny?Well,itstrue.Adietisthefoodyoueateveryday.Buttheword“diet”canalsomeancontrollingcalories(卡路里)orthekindsoffoodyoueattoloseweight(体重).Somekidsworryabouttheirweightandsaytheyregoingonadiet.Youmayalsowanttoknowifyoushouldbeonadiet,too.Infact,mostkidsdonotneedtoandshouldnotdietinthisway.Why?Letsfindout.

Acalorieisameasureofenergy(能量).Therearecaloriesinallfoodandmostdrinks.Whensomeonediets,heorsheistryingtogetfewercaloriesthanthebodyuses.Bydoingthis,thepersonmaygetthinnerthanbefore.Butkidsdonotneedtodietinthisway.

Infact,kidsaregrowing.Theyneedhealthyfoodtokeeptheirbodiesgrowingwell.Somekidsareheavy,buttheycanimprovetheirhealthbydoin