高三英語Astronomy教案
exist + prep. 存在于地方 exist on sth. 靠某物生存
[練習] 用exist的短語或其適當形式填空。
1). this plant ______ only ______ australia.
2). can you ______ ______ such a low salary?
3). i doubt the ______ (exist) of alien.
keys: 1). exists; in 2). exist on to 3). existence
5. puzzle vt.&vi. (使)迷惑；(使)苦思 n.謎；難題 puzzled adj.無法了解的；困惑的 puzzling adj.令人費解的
[典例]
1). her reply puzzled me. 她的回答把我弄糊涂了。
2). their reason for doing it is still a puzzle to me. 他們為什麼要做此事我仍莫名其妙。
[重點用法]
sth. puzzles sb. 某事使某人迷惑/為難 sb. be puzzled by sth. 某人對……感到迷惑
puzzle about/over sth. 對某事感到迷惑或苦苦思索（以便理解） puzzle one’ s brain苦思苦想；絞盡腦汁
solve a puzzle 解決一個難題
[練習] 用puzzle的適當形式填空或翻譯。
1). to explain the ________ (puzzle) findings, he offers two theories.
2). i _______ (puzzle) that i haven’ t heard from liz for so long.
3). she listened with a _______ (puzzle) expression on her face.
4). no one has yet succeeded in explaining the _______ (puzzle) of how life began.
5). he _______ (puzzle) what to do next.
6). _______ _______ _______ (使我困惑的事情) is why he left the country without telling anyone.
keys: 1). puzzling 2). am puzzled 3). puzzled 4). puzzle 5) was puzzled 6). what puzzles me
6. pull v.拉，拖，拔；移動 n.拉，拖；拉(引)力
[典例]
1). you push and i’ ll pull. 你來推，我來拉。
2). i felt a pull at my sleeve and turned round. 我覺得有人扯我的袖子，便轉過身來。
[重點用法]
pull ahead (of sb/sth) 領先（於某人/物） pull (sb) back（使某人）退卻；撤回（某人）
pull off (sth)（指機動車輛）駛離（道路）（至路側停車處停下） pull out (sth.) 拉掉；使分離；掏出；駛離（車站）
pull on 穿，戴上（襪子、手套等） pull together 同心協力；通力合作
[練習] 用pull短語的適當形式填空。
1). i arrived as the last train was ______ ______.
2). he ______ ______ a gun and aimed at the criminal.
3). so long as we ______ ______, there’ s no mountain top we can’t conquer.
keys: 1). pulling out 2). pulled out 3). pull together
7. cheer vt. & vi. (使)高興、振奮；(對)歡呼 cheerful adj.高興的 cheerless adj.不高興的
[典例]
1). the crowd cheered loudly as the queen appeared. 女王出現時群眾高聲歡呼。