IGCSE考試緊鑼密鼓的進(jìn)行著,相信大家都在努力備考中。關(guān)于化學(xué)學(xué)科的復(fù)習(xí)以及最后的沖刺,老師整理了一些干貨分享給大家,希望能夠幫助大家梳理知識點,從容應(yīng)對考試。
IGCSE化學(xué)試卷分為core和extened。如果選擇core需要答paper1,paper3,如果選擇extended需要答paper2,paper4。Paper5,Paper6是實驗部分。
具體考試形式是:
Paper 1: Multiple Choice (Core)
Paper 2: Multiple Choice (Extended)
Paper 3: Theory (Core)
Paper 4: Theory (Extended)
Paper 5: Practical Test
Paper 6: Alternative to Practical
無論是學(xué)習(xí)拓展課程還是核心課程,學(xué)生都要考三張試卷。學(xué)習(xí)核心課程的學(xué)生考試卷1和試卷3以及試卷5或6,學(xué)習(xí)拓展課程的學(xué)生考試卷2和試卷4以及試卷5或6。
試卷1和2為選擇題卷,一共有40道選擇題,考試時間為45分鐘;試卷3和4為理論題卷,主要是簡答題和結(jié)構(gòu)化問題,所有題目都是必答題,考試時間是1小時15分鐘,滿分80分。
試卷5和6考查的都是實驗技能,區(qū)別為試卷5需要進(jìn)行實際操作,試卷6以筆試形式進(jìn)行。
◎ 考點分析
基本的知識考點有:
Section 1: Principles of chemistry
a)? ?States of matter
b)? ?Atoms
c)? ?Atomic structure
d)? ?Relative molecular and formula masses
e)? ?Chemical formulae and chemical equations
f)? ? Ionic compounds
g)?? Covalent substances
h)?? Metallic crystals
i)?????Electrolysis
Section 2: Chemistry of the elements
a)?? The Periodic Table
b)?? The Group 1 elements – lithium, sodium and potassium
c)? ?The Group 7 elements – chlorine, bromine and iodine
d)?? Oxygen and oxides
e)?? Hydrogen and water
f)? ? Reactivity series
g)?? Tests for ions and gases
Section 3: Organic chemistry
a)?? Introduction
b)?? Alkanes
c)? ?Alkenes
Section 4: Physical chemistry
a)?? Acids, alkalis and salts
b)?? Energetics
c)? ?Rates of reaction
d)?? Equilibria
Section 5: Chemistry in society
a)?? Extraction and uses of metals
b)?? Crude oil
c)??? Synthetic polymers
d)?? The manufacture of some important chemicals
◎ 考試難點
Organic chemistry
Practical Test
◎ Checklist

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