1.supersonic a．超音速的(moving, capable of moving, or utilizing air currents moving at supersonic speed);n.超聲波(a supersonic wave or frequency)
詞根記憶：super(超)+son（聲音）+ ic--超音速的
例：A scramjet can attain high speeds by reducing airflow compression at the entrance of the engine and letting air pass through at supersonic speeds.
同根詞：resonance(n．反響，共鳴)
2.supplement v.補(bǔ)充，增補(bǔ)(to add) ;n．補(bǔ)充（物）．增補(bǔ)（物）(something that completes or makes an addition)
詞根記憶：sup+ple(滿)+ment--使?jié)M--補(bǔ)充，增補(bǔ)
例：The government proposed to supplement the income of those low-paid workers.//vitamin supplements維生素添加劑
3.suppress v.鎮(zhèn)壓(to subdue)；抑制，阻止( to restrain or inhibit)
詞根記憶：sup(在下面)+press(壓)--壓下去--鎮(zhèn)壓
例：Police were ordered out to suppress the demonstrators．//Many malarial symptoms can be suppressed with anti-malarial medication.
派生詞：suppressant(n．抑制物)；suppressed[a．生長（發(fā)育）受阻的]
4.supreme a．最高的（highest in rank or authority）；極度的(highest in degree or quality)
詞根記憶：supre(=super超過)+me(我)--超越我的--最高的
例：the Supreme Court最高法院//The very rich couple lived in supreme luxury.
5.surcharge n.附加稅：額外費(fèi)(an additional tax or cost)
詞根記憶：sur(超過)+charge(收費(fèi))--額外的收費(fèi)--附加費(fèi)
例：bunker surcharge燃油附加稅
6.surge v./n.洶涌：猛增(to rise suddenly and excessively)
聯(lián)想記憶：s+urge(急迫的)--水流湍急--洶涌
例：The huge wave surged over the beach.//The surge in new home sales may continue in the coming years.
7.surgeon n．外科醫(yī)生（a medical specialist who practices surgery）
聯(lián)想記憶：surge(波動(dòng))+on--做外科醫(yī)師，情緒不能波動(dòng)太大--外科醫(yī)師
例：After 5 years hard study, Tom became a cardiac surgeon.
派生詞：surgery(n.手術(shù))；surgical(a．外科手術(shù)的)；surgically( ad.使用外科手術(shù)地)
8.surpass v.超越(to go beyond)；勝過（to exceed）
詞根記憶：sur(上面)+pass(經(jīng)過)--從上面經(jīng)過--超越
例：India may surpass China as the world's most populous nation by 2050.//the excellent runner surpassed all previous records.