后成构造, 表皮构造,浅层构造

[00:00.00]Vienna n. [00:00.69]维也纳 [00:01.38]expect vt. [00:02.17]盼望 [00:02.95]stage n. vt. [00:03.41]阶段 上演 [00:03.87]scheduled a. [00:04.45]预定的 [00:05.04]contract vt. n. [00:05.83]承包 合同 [00:06.61]foundation n. [00:07.3

发表于:2018-12-05 / 阅读(250) / 评论(0) 分类 工商管理英语

After we had seen how relatively easy it was to change the switches in mouse embryos, we thought that perhaps the same could be true of human embryos. In IVF, you also have the embryo for a brief peri

发表于:2018-12-07 / 阅读(176) / 评论(0) 分类 基因外遗传现象

UNIT ELEVEN [00:11.28]She goes to work by bus.Tony is writing a letter to his pen-friend. [00:22.75]He is answering his pen-friend's questions. [00:29.52]2 Octber 1995 Dear David, [00:39.44]Thank you for you letter.Here are the answers to your questi

发表于:2018-12-13 / 阅读(275) / 评论(0) 分类 小学综合英语3A

UNIT FOUR [00:03.21]Can I have a bowl of soup?Picture 1. [00:12.41]Peter,Tony and Jenny are playing waiters.Peter is the waiter. [00:23.93]Tony and Jenny are ordering their food.Picture 2. [00:35.71]Can I have a bowl of soup,please?No,I'm sorry. [00:

发表于:2018-12-13 / 阅读(278) / 评论(0) 分类 小学综合英语3A

UNIT SIX [00:12.49]Birthday presents Picture 1. [00:19.36]What do you want for your birthday,Mum? Oh,I don't know,dear.Picture 2. [00:34.77]Do you want any cakes? No,thank you,dear.Picture 3. [00:49.14]Do you want any flowers? No,thank you,dear.Pictu

发表于:2018-12-13 / 阅读(361) / 评论(0) 分类 小学综合英语3A

UNIT SEVEN [00:14.79]Which one do you want?Picture 1. [00:22.94]Can I have an apples? I like apples. Yes,of course.Picture 2. [00:38.77]Which apple do you want?The big one,please. [00:46.52]I don't want the small one. Gogo!You're greedy!Picture 3. [0

发表于:2018-12-13 / 阅读(305) / 评论(0) 分类 小学综合英语3A

UNTI TWELVE [00:04.28]What am I?Picture 1. [00:11.86]Tony and Lily are playing'What am I?'Are you young or old? [00:24.92]I'm young.Picture 2. [00:33.46]Have you got hair or feathers? I've got feathers.Picture 3. [00:46.99]Can you run or fly? I can r

发表于:2018-12-13 / 阅读(310) / 评论(0) 分类 小学综合英语3A

UNIT NINE [00:07.78]Lily and Susie go to school every day.Picture 1. [00:19.64]Lily and Susie go to school every day.They are in the same class. [00:31.43]They sit together every day.Picture 2. [00:41.87]It is eight fifteen.Lily and Susie are having

发表于:2018-12-13 / 阅读(301) / 评论(0) 分类 小学综合英语3A

UNIT TWO [00:12.20]Gogo can fly.Picture 1. [00:20.24]What can Gogo do,Tony? I don't know.Picture 2. [00:32.63]What can you do,Gogo? I can dance.Picture 3. [00:45.56]That's very good,Gogo. Can he sing?Picture 4. [00:57.94]Can you sing,Gogo? Yes,I can.

发表于:2018-12-13 / 阅读(329) / 评论(0) 分类 小学综合英语3A

Unit 1 [00:27.95]The donkey and the pekinese [00:32.71]There was a merchant who had a Pekinese dog. [00:37.98]It was like a toy. [00:41.14]The Dekinese lived in the merchant's house, [00:45.90]slept on his bed, sat on his lap and lived an easy life.

发表于:2018-12-13 / 阅读(339) / 评论(0) 分类 小学综合英语6A

Unit 13 [00:39.58]The farmer and the fox [00:43.52]There was a rich farmer who owned many fields. [00:49.08]He also kept ducks and hens. [00:53.76]They gave him eggs and sometimes he ate one for his dinner. [01:00.60]One night in winter a fox came to

发表于:2018-12-13 / 阅读(306) / 评论(0) 分类 小学综合英语6A

UNIT TEN [00:18.49]Ten apples.Picture 1. [00:25.76]A B C STORE.Picture 2. [00:34.53]One carrot.Picture 3. [00:42.55]Two lemonsPicture 4. [00:52.19]Three bananas. Picture 5. [01:00.73]Four sweets.Picture 6. [01:11.97]Five eggs.Picture 7. [01:22.13]Six

发表于:2018-12-13 / 阅读(302) / 评论(0) 分类 小学综合英语1A

Unit 11 [00:43.70]The school bag [00:47.18]Last monday,Peter,Patsy John and Annie were at the bus stop. [00:55.93]A bus arrived. One of the boys picked up Annie's school bag. [01:07.76]'Hey!Annie said.'That bag is mine.' [01:14.14]'No,it isn't,'the b

发表于:2018-12-13 / 阅读(317) / 评论(0) 分类 小学综合英语4A

Unit 9 [00:54.62]Sharing [00:57.86]The children played at Peter's flat last Sunday. [01:04.42]At 4 o'clock they were hungry.They wanted some food. [01:11.78]'We can put all our money together and then share it,'Annie said. [01:19.65]'No,we can spend

发表于:2018-12-13 / 阅读(282) / 评论(0) 分类 小学综合英语4A

Unit 13 [00:46.21]A holiday [00:49.16]'Tomorrow is a holiday John said to the Busy Bees. [00:55.82]'What are we going to do? [00:59.17]'I'm going to get up late,'Annie said.'I'm going to stay in bed all morning.' [01:07.03]'I'm not going to spend my

发表于:2018-12-13 / 阅读(247) / 评论(0) 分类 小学综合英语4A

Uint 2 [00:46.18]The lost pures [00:49.53]One afternoon Jane took the children out. [00:55.09]They went to the cinema and a supermarket. Then Jane said, [01:02.75]'It's time to go home.'She took the children to the MTR station. [01:10.61]She felt in

发表于:2018-12-13 / 阅读(430) / 评论(0) 分类 新路径小学英语六年级下册(一起)

During the last ice age, rapid swings in temperature occurred within decades or less, meaning populations of organisms had to adjust quickly to new environments or face extinction. 在最后一个冰河世纪中,温度在数十年甚至更短的时间

发表于:2018-12-28 / 阅读(132) / 评论(0) 分类 初学者听力文摘精选

Science and technology 科学技术 Epigenetics and health 表观遗传学与健康 Grandma's curse 祖母的诅咒 Some of the effects of smoking may be passed from grandmother to grandchild 祖母吸烟产生的影响可以会遗传至孙子或孙女

发表于:2019-01-28 / 阅读(156) / 评论(0) 分类 经济学人科技系列

Body Clock Provides Clues to Aging 生物钟提供衰老的线索 If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bod

发表于:2019-01-31 / 阅读(250) / 评论(0) 分类 VOA常速英语2013年(十月)

If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bodies age and how we can slow down the process. University of Califo

发表于:2019-02-05 / 阅读(165) / 评论(0) 分类 英语新闻
学英语单词
acausally
advance sea
alcohol withdrawal delirium
alimentary lipemia
anchress
angular cut
any man's money
Apollonian circle
bacon's
beast mode
beauty culture
Betschdorf
binding course
bit-by-bit control
branch function true
Calcioolyndochite
canophyllic acid
capture radiation
chemistry books
clodomiro
competitive interdependence
contesseration
crossotarsus niponicus
Cymbopogon distans
Deshang
digit adsorbing selector
digitalis lanata
disyllabify
dnj
Dolabradiene
earth exploration satellite services
electrobioluminescence
ethylene glycol epoxy resin
euphorbism
fire-proof fabric
flotilla assembly and disassembly
foreign body forceps
frenulum of Giacomini
frequency hopping
haddest
head pumping
hewest
HNCM
hormomya mutabilis
identificacin
immune reaction
index-fund
iodide hyperthyroidism
ketohemidone
kitchentable software
Lamina terminalis
live-stock
low suction controller
made keelblock
majonity carrier
micropygids
nonproductive sector
nooi
normal atmosphere
Oslofjorden
overheat conditions
panopticism
participation rate
planting by suckers
polymorphous perversity
poodlefakers
proportional input
Ptolemy of Mauretania
pump-prime
radio decoder
rating of bridge
regression curve
rowing-team
runway ecnterline lights system
Santa Ana, Pta.
scripturalists
second stage of impact
self-recording machenism
shangraw
shunting
soulbond
speech band inversion
split bulging die
strumpell
synedra hennedyana
Taiped
tangential partial turbine
tank in use
tetraglot
the grotesque
three tours a day
today show
traumatic syringomyelia
trichogramma chilonis
Triptisol
uneatableness
unified platform
vestara
violent movement
war whoop
whore hardness
Xiat