The world around us教案
a valuable diamond.貴重的寶石; valuable information; valuable advice.重大的消息；重要
的建議; a valuable friend. 令人欽佩的朋友
n. [常用復(fù)]貴重物品
13. reduce v. 縮減，減輕減少，如在范圍、數(shù)量上或程度上減少；降低(to bring down, as in
extent, amount, or degree; diminish)
（與to連用）減少至the fire reduced the forest to a few trees. 大火把森林燒得僅剩下幾顆樹。
（與to連用）變?yōu)椋癁?to reduce the rocks to dust 把石塊碎成粉末
（與to連用）強迫；迫使 she was reduced to begging. 她被迫乞討。
14. respond v. 回答，答復(fù)(to make a reply; answer)
15. amount n. 數(shù)量 large amounts of money
vi （與to連用） 等于；總計；合計；總計達(dá)
his debts amount to over $3000. 他的欠債總數(shù)已達(dá)三千多美元。
16. package n. 包；包袱；包裹；包裝 (a wrapped or boxed object; a parcel)
17. harmful adj. 有害的；能造成損害的(causing or capable of causing harm; injurious)
18. flat adj. 平的；平直的 (smooth and level )
單調(diào)的；乏味的
19. material n. 材料，原料事物用或能用其制造的物質(zhì) (the substance or substances out of
which a thing is or can be made.)
20. attractive adj. 有吸引力的(having the power to attract)
21. organize v. 組織；構(gòu)成，組成
22. brief adj 短暫的；簡短的 a brief letter 一封短信
in brief 簡單地說；簡明扼要的 in brief he says no 他簡短地說了一個不字。
• 重點短語解析 •
1. in danger處于險境，反義短語為be out of danger。
比較：be dangerous “危險的，有危害的”。
2. die out
1) (of families, species, etc) no longer have any members left alive（指家族、物種等） 死滅絕
2) (of a custom, practice, ideas, etc) no longer be common（指習(xí)俗、做法、觀念等）消失 過時
3) (of a fire) to lose force or power （指火）熄滅
3. as a result 因此; 結(jié)果
4. lead to .導(dǎo)致, 通向 the path leads to the village. 這條小路通到那村莊。
5. take measures “采取措施”
6. adapt to sth / adapt oneself to sth適應(yīng)（新環(huán)境等） (become adjusted to new conditions,
etc)。