Words and expressions
1. unexplained adj. 神秘的
explain v. 解釋 explain sth. to sb.
explain sth away 辯護
n. explanation
You will find it difficult to explain away your use of such offensive language.
你將發現你很難為說過的這種無禮的話辯護。
2. puzzled adj. 困惑的，茫然的 puzzling adj. 令人困惑的
puzzle n. a.難理解的問題（可數）
b.僅用作單數，迷惑，困惑
puzzle vt & vi.使困惑
puzzle over sth.深思
puzzle sth. out 苦思而找出問題的答案
3. step up 加強，加緊，促進，增加，走上
step up production 促進生產
4. search n. & vt & vi
search+人或地點，表示在人身上搜或者在某地搜東西
search for +人或物，表示尋找某人或者某物
試比較：They searched him.
They searched for him.
in search of in one’s search for 尋找
5．due to a.因為， 由于 后接名詞，代詞作表語或者原因狀語。(because of, owing to ,by reason of thanks to ,on account of)
例.The accident is due to careless driving.
b.應付的，應得到的，預期的 后接動詞不定式或不帶什么。
例。The train is due at 1:30.火車應于一點半到。
Mr. Hill is due to speak twice tomorrow.希爾預定明天演講兩次。
6．show up a. 出席，到場=turn up ,appear ,attend
Why didn’t you show up at the meeting yesterday?
b.揭穿，揭露
Someone showed him up as a thief.有人揭發他是個小偷。
c.顯眼，易見
At times like these ,the true character of the man shows up.
在這樣的時刻，這人的真面目就表現出來了。
7.witness n.目擊者，證人
（不可數名詞）證據，證明，證言
v. a.親見，目擊
witness to doing sth./sth 作證
例.Mr.X witnessed to having seen the accused near the scene of the crime.
某先生作證說曾看到被告在犯罪現場。
b.證明，顯示
Her pale face witnessed the excited she felt.
8.according to ①根據 ②視……而定 ③按照,依照
According to the Bible ,God created the world in 6 days.
He will be punished according to the seriousness of his crime.
The books are placed on the shelves according to authors.
Accordingly 因此,所以,于是
9.creature a.動物(不會說話的下等動物),畜牲
b.與adj. 連用 ,指人
a loving creature a poor creature
10.UFO=Unidentified Flying Object
identify 認出,認明,鑒定
Could you identify your umbrella among a hundred others?
identify oneself with sb/sth支持, 與…認同 覺得與……接近
11.research n.研究 do research on 對…….進行研究
v.研究 research into a problem 研究問題
12.frightening adj.令人恐懼的 The tiger is frightening.
frightened adj. 恐懼的 A hunter is shooting at the tiger, so the tiger is very frightened .
13.rule out 去掉,排除,取消,拒絕
rule over 統治
rule on 裁決 rule against 否決
14.look into 調查，瀏覽（書等） 注視---的內部
look into a question
15.make up a.和好，調解
They quarreled but soon made up.
b.化妝，打扮
She took over 30 minutes to make up her face.
c.使完整，湊足
We need one more player to make up a team.
d.構成---
54 students make up Class Five.=Class Five is made up of 54 students.
e.編造故事等，捏造，虛構
Is she telling the truth, or making it all up?
f.彌補，補充，償還 make up exams 補考
g. make up for 補償，補充，填補，彌補
make up for lost time
h,整理，收拾
Have you made up Mrs. Smith’s order （貨或者訂購的東西） yet?
16.case n.案件，情況
in case 萬一，如果 It may rain ,you’d better take an umbrella in case.
in case of 如果，萬一，若
e.g. In case of fire, ring the alarm bell
in any case 無論如何， in this/that case 若是這樣/那樣的話
in no case 決不
17．convincing adj. 令人信服的 convinced adj. 相信的，信服的
convince vt.使信服，說服 a. +n/prop/clause
e.g. Nobody could convince him.
b. +n./prop +of 引起的短語 convince sb. of sth./that clause e.g. We failed to convince him of his mistake.我們沒能使他相信他是錯的。 I’m convinced of his honesty /that he is honest.
18.progress n.進步，進展 in progress 在進行中 e.g. You have made great progress in English. The harder you work, the greater progress you’ll make. v.前進，進行+副詞 e.g. We are now progressing steadily with our work. v.上進，提高，進步 e.g. You have progressed quickly in maths. 19. give up a.放棄 +n./doing 當賓語是it/them時，則放在up 之前。 e.g.He was forced to give up school.他被迫輟學。 He gave up smoking at last. b.獻出，讓出，交出 He gave up his seat to the old woman. Give up your arms and live.交槍不殺 c.投降，認輸，泄氣，其后可以不接賓語 e.g. Don’t give up, you may succeed. d. give up on 對---表示絕望，放棄，（不可以用被動態）
I give up upon you.我對你不抱希望了。
give up on sport 放棄體育運動
give oneself up 自首