2008年5月11日 星期日

5.2p80-90

5.2 How does climate affect the nature and location of biomes?
Climate affects where organisms can live
1.deserts, glasslands, and forests casued by global air circulation
2.def. biomes, patch
Patch斑塊:指可以作為同質處理的土地單位,具有生態系統的特性,其空間尺度通常為10-100m(100-10000m2)
UCMP的線上資料-The world's biomes
herbs草本植物
lichens地衣
mosses苔蘚
coniferous結毬果的
deciduous落葉性的

There are three major types of desert
3.tropical deserts, Shara (27N)and Namib(25S)
4.temperate desert, Mojave(加州內華達州35N)
5.cold desert, Gobi desert (44N)
5.1 fig5-10 tropical seasonal forest熱帶季節林, scrubland硬葉灌叢帶, savanna疏林草原, chaparral常綠密生灌木叢
baking烘焙,烘烤
roast烤,炙
shiver發抖,打顫
strewn (strew)鋪蓋
sparse稀疏的
shrub矮樹;灌木

Science focus-- staying alive in the desert
6.beat the heat and every drop of water counts
7.drop(no) leaves, fleshy多肉的 tissue, pores 氣孔open only at night, deep roots or widely spread roots, wax-coated leaves or needles, store in seeds.
8.small, dormant冬眠的;休眠的, dense hair, does not sweat, water store in fat(動,植物)脂肪, dthick outer covering, dry feces 排泄物, dried concentrate of urine尿
cacti(cactus)仙人掌
mesquite豆科灌木
creosote木焦油灌木
dormant 冬眠的;休眠的
succulent【植】肉質的
spine(動、植物的)刺,針
precious珍貴的
germinate發芽;生長
carpet地毯
dazzling使目眩,使眼花
beat打敗
burrow洞穴,地道
crevice裂縫,裂隙
kangaroo rat

There are three major types of glasslands
9.seasonal drought, grazing by large herbivores, occasional fires
10.tropical grassland, savanna, niches
11.temperate grassland, aboveground parts of most of the grasses die (or fire), tall-grass prairies and short-grass prairies, winds and fires hindering tree growth. have fertile soil transfor growing crops and grazing cattle.

低草型草原short grassland:草層高度在50 cm以下的草原。高草型草地grassland of tallgrass type :草高80 cm或100 cm以上的草地。
12.cold grassland or arctic tundra, thick, spongy mat of low-growing plants.
13.permafrost
14.alpine tundra
clump樹叢
acacia刺槐
thorns刺,棘
grazing吃草
browsing吃葉(或嫩枝)
hoofed有蹄的
wildebeest牛羚
gazelle瞪羚
giraffe長頸鹿
anteople羚羊
hyena鬣狗,土狼
shoot幼芽,幼枝
stems莖
tap (為抽液而作的)穿刺
ice cap冰帽,冰蓋
scant少量的
carpet地毯
spongy海綿狀的
mat地蓆;草蓆
dwarf侏儒
consecutive連貫的
soaking浸泡
bog沼澤,泥塘
waterlogged水澇的
horde群;一大群
colonies集群;群體
waterfowl水鳥;水禽
musk ox麝香牛
lemming旅鼠(北極產)
caribou北美馴鹿
scars疤;傷痕

There are three major types of forest
15.tropical rain forest, broadleaf evergreen plants, draped with vines(lianas), cover 2% of the earth's land surface, contain at least half of the known terrestrial species, niches in distinct layers, decompose quickly, most nutrients are in tree.
16.temperate deciduous forest, dominated by a few species of broadleaf deciduous trees, slow rate of decomposition.
17.evergreen coniferous forest, boreal forest and taiga, dominated by a few species of coniferous evergreen trees, high soil acidity, contain a variety of wildlife.
18.coastal coniferous forests or temperate rain forests, ample rainfall or moisture form dense ocean fogs.
boreal北極的
laden裝滿的
illumination照明,照亮
dim微暗的
greenish微綠的
drape覆蓋
vines藤,藤蔓
liana藤本植物
teeming充滿的
hickory山胡桃屬植物
maple槭樹,楓樹
poplar白楊
beech山毛櫸
dormant冬眠的;休眠的
array大量
Sierra 內華達山脈正確的說法是「the Sierra Nevada」,或簡稱為「the Sierra」
spruce雲杉
fir冷杉
cedar西洋杉
hemlock鐵杉
pine松樹
conifer針葉樹
acidity酸性;酸度
lynx山貓
burrow洞穴,地道
rodent齧齒目動物
warbler鳴禽
caterpillar毛蟲,蠋(蝶、蛾的幼蟲)
sitka spruce 錫特卡雲杉
Harpy eagle哈比鷹
Toco toucan托科巨嘴鳥
Wooly opossum負鼠
Brazilian tapir貘(ㄇㄛˋ)
Black-crowned antpitta蟻鶇(dong ㄉㄨㄥ)

Mountains play important ecological roles
19. play important ecological roles, habitats(endemic species, sanctuaries), regulate climate, hydrologic cycle.
freestanding獨立式的
sanctuary庇護所,避難所
fate命運

5-3p91-92

5.3How have we affected the world's terrestrial ecosystems?
Humans have disturbed most of the earth's land
1.62% of the world's major terrestrial ecosystems are being degraded or used unsustainably.
2.balance between expolitation and conservation
impairing損害,損傷
destruction破壞;毀滅
eating away不停地吃
grip理解;掌握
controversial爭論的

2008年4月25日 星期五

4.1p63-66

4.Evolution and biodiversity

Core case study- the adaptability of life on the earth
1.the earth's orbit is right distance from the sun(temperature)
2.the size of earth is also just right for life(gravitational mass引力質量)
3.two amazing features of planet are its biodiversity and sustainability
condense使冷凝,使凝結
enormously巨大地,龐大地
resilient彈回的;有彈力的
lethal致命的


4.1 what is biological evolution and how does it occur?

Biological evolution is the scientific explanation of how the earth's life changes over time
1. 4-100 million species come from biological evolution: gene change. theory of evolution
2. earth 4.7 billion years, life 3.7 billion years, human species 200 thousand years
化石.冰核.岩層中取得生物證據
演化(Evolution)又稱進化,在生物學中是指族群裡的遺傳性狀(genetic traits )在世代之間的變化。所謂性狀則是指基因的表現,這些基因在繁殖過程中,會經複製並傳遞到子代。wiki
2008/5/9鴨嘴獸的報導,提到演化的證據 指出鴨嘴獸在基因上是集合鳥類、爬蟲類與哺乳類動物之大成。牠在一億六千六百萬年前左右,開始與其他哺乳類分道揚鑣,但仍與人類、老鼠等遠親擁有八十二%相同的基因。自由電子報
生物演化
http://tw.youtube.com/watch?v=-ONwp56pMBE&feature=related
化石(石化現象)
http://tw.youtube.com/watch?v=G4jM2t3NHPA&feature=related
descended來自於
ancestral祖先的
ignite使燃燒
overdose藥劑過量
remarkable非凡的;卓越的
incredible不能相信的
despite儘管,任憑
mineralized礦化
petrified石化的
replica複製品
skeleton骨骼;骸骨
impression壓印;印記
herbivore食草動物
Cenozoic新生代的(地質年代表
primitive遠古的;早期的
still more更多

the genetic makeup of a population can change
3.populations evlove by becoming genetically different
4.genetic variability occurs through mutation變種,突變(random mistake, external agent)
每個細胞都可能發生突變但僅有生殖細胞的突變可以遺傳到下一代 有時這種突變可使這些生物體有較多存活與繁殖機會
make-up構成;構造
mutation變種,突變
mutagen誘導有機體突變的因子
genetic trait遺傳特徵(性狀)


Individuals in populations with beneficial genetic traits can leave more offspring
5.natural selection發生在個體 evolution則發生在族群
6.adaptive trait適應性狀 and differential reproduction繁殖差異
7. face with change in envrionmental conditions, a population of a species has three possibilities: adapt適應, migrate遷移, become extinct滅絕.
8.the process of biological evolution by natural selection 可摘要簡化為: 基因突變.個體選擇.族群演化當環境改變時具有較佳的存活與繁殖適應力
genetic traits 遺傳性狀
heritable會遺傳的

Science focus-- how did we become such a powerful species?
9.strong opposable thumbs可對立的拇指, ability to walk upright直立行走, complex brain複雜頭腦.
deficiency不足,缺乏
twitch猛拉,急扯

Populations of different species compete to change their genes and leave the most offspring
9. coevolution共同演化(協同進化) bat and moth story
bat蝙蝠
moth蛾
echolocation回波定位
pulse脈衝;脈衝波
sonic聲音的
countermeasure對策
evasively逃避地
click卡嗒聲,喀嚓聲
jam干擾
prey被捕食的動物
predator食肉動物;掠奪者