1Ihavehadatemperature[because]ihadaheadache.
因为我头痛,所以要量体温
2Mr.blackhaslivedinchina[for]fiveyearsago.
forfiveyearsago.是固定搭配
1.a。sinceb.forc.befored.after2.a,beforeb.forc./d.since
1.a.sinceb.forc.befored.after选Asince也是因为的意思2.a,beforeb.forc./d.since选Bfor上面有解释了