except / except for /besides “除了”不同

[ 高手出招 ]1. John and me ，there is no one here .

2.Everyone Mary answered the question correctly.

3.We need fifteen more people our team to do the job .

4.We have gathered all the crops the wheat .

[ 一语击破 ]except 是“除去”的意思，它往住和 all ， every ，no nobody ，nothing 等词连用，指整体内排除 except 后的内容。如：

All are present except Xiao Wang .

except for 有时可以和 except 互换，表示“除……以外”，但位于句首时，不用 except ，而用 except for .如：

Except for George ， we can all go .

besides 是“除……以外，另外还有”的意思，指整体内包含 besides 后的内容。如

Two other boys were on duty besides Xiao Li .

（Keys ： 1. Expect for 2.except 3.besides 4.except）

because / because of / since / as / for “因为”不同

[ 高手出招 ] 1. he is ill ， he can't go to school.

2. The girl didn't go to the meeting yesterday her sickness.

3. you don't want to go to see the film ，I won't go ， either .

4. it's raining ， we shall have to stay at home .

5. It must have rained ， the ground is all wet .

[ 一语击破 ] because 作连词，用于引导原因状语从句或回答 why 的问句，常用于表示直接的原因。而 because of 是复合介词，后接名词或代词。请比较：

He didn't come because he was ill .

He didn't come because of his illness .

since 的语气比 because 稍弱，表示关系上的自然结果，常译成“既然、鉴于”，如：

Since light travels faster than sound ， we see lightening before we hear the thunder.

as 语气最弱，只说明一般的因果关系，译为“由于”； for 表明附加或推断的理由，引导的分句前常有逗号， for 分句不放在句首。如：

He must be ill ， for he is absent today .

（Keys ： 1. Because 2. because of 3. Since 4. As 5. for ）