vt．篩選
We must screen the sand grains out of the silver sand. 我們要把細沙中的沙粒篩出去。
vt．檢查
It is now possible to screen babies for diabetes. 目前可以為嬰兒做糖尿病的篩查。
You can use an answerphone to screen your phone calls before you answer them. 你可以用電話答錄機在接聽電話之前檢查這些來電。
share
n．份額
Your share of the cost is 10 pounds. 你這一份費用是十英鎊。
n．股份
She has got all her money in stocks and shares. 她所有的錢都投到股票裏去了。
v．分享
Keep your fears to yourself but share your courage with others. 把恐懼留給自己，和他人分享勇氣。
spell /spel/
v．拚寫
Her writing is neat, but she can’t spell. 她的書寫很工整，但她拚寫很差。
vt．導致
Their unwise investment could spell financial ruin. 他們所做的不明智的投資可能導致經濟上的損失。
spontaneous
adj．自然產生的
The eruption of volcanoes is spontaneous. 火山爆發是自然產生的。
adj．自發的，主動的
He is spontaneous to offer help. 他主動提供幫助。
The spontaneous applause cut the singer short. 自發的掌聲打斷了歌手的演唱。
spot
n．場所
This is the spot where the two trucks collided. 這是兩輛卡車相撞的地點。
This looks like a nice spot for a picnic. 這看起來是個很好的野餐場所。
n．汙點
He flicked at spot with handkerchief. 他輕輕地用手帕拂拭汙點。
vt．弄髒，玷汙
His boots were spotted with mud. 他的靴子上沾有泥漬。
The scandal spotted his character. 那件醜聞玷汙了他的人格。
vt．認出
She spotted her friend in the crowd. 她在人群中認出了她的朋友。
stage
n．舞台
She stood alone on the enormous stage. 她孤零零地站在巨大的舞台上。
He quit the stage of politics. 他退出了政治舞台。
n．階段
The disease is still in its primary stage. 這疾病仍然在初發階段。
Negotiations were at a crucial stage. 談判正處於一個關鍵的階段。
vt．籌劃，舉行
They decided to stage a general strike. 他們決定舉行總罷工。
She asserted that she was going to stage a musical comedy. 她宣稱要組織演出一部音樂喜劇。
They were going to stage a large-scale money collection. 他們籌劃舉辦一個大型募捐活動。
state
n．狀態，情況
He wept to see her in such a state. 他見到她的境況潸然淚下。
The house has fallen into a state of neglect. 這所房屋已處於荒廢的狀態。
n．國家；州
Alaska is a state of ample size. 阿拉斯加是個大州。
vt．陳述
Please state the facts honestly. 請如實地陳述事實。
subject
n．科目
Mathematics is my favorite subject. 數學是我最喜歡的科目。
n．主題
He concedes that normal life can be a subject for art. 他承認日常生活可以作為藝術的題材。
n．主語
The subject of a sentence and its verb must agree in number. 句子的主語和動詞的數必須一致。