时间:2018-12-13 作者:英语课 分类:新路径小学英语四年级下册(一起)


英语课

 



[00:03.19]Lesson T 


[00:04.88]The Life Cycle 1 of a Frog 


[00:07.79]Let's talk. 


[00:09.29]Hello! Welcome to "About Animals." 


[00:12.64]Today we're going to talk


[00:14.62]about the life cycle of a frog. 


[00:16.74]Adult frogs lay eggs in spring.


[00:19.99]After about two weeks, tadpoles 2 come out.


[00:22.76]About five weeks old, they have back legs.


[00:27.52]About ten weeks old, they have front legs, too.


[00:31.67]Their tails become short and then they are called froglets.


[00:35.65]The froglets eat small animals such as flies and then become young frogs.


[00:41.53]They live on land for two or three years and become adults.


[00:44.98]Then they go back to water to lay eggs. 


[00:49.57]Magic box 


[00:52.64]adult frog 


[00:54.91]lay eggs 


[00:57.82]froglet 


[00:59.93]froglet 


[01:02.27]back leg 


[01:03.44]front leg 


[01:05.15]week 




1 cycle
n.周期,循环,自行车;vi.循环,轮转,骑自行车;vt.使循环
  • The seasons of the year make a cycle.一年四季构成一个循环。
  • Do you cycle to work everyday?你每天骑自行车上班吗?
2 tadpoles
n.蝌蚪( tadpole的名词复数 )
  • The pond teemed with tadpoles. 池子里有很多蝌蚪。 来自《简明英汉词典》
  • Both fish and tadpoles have gills. 鱼和蝌蚪都有鳃。 来自《现代汉英综合大词典》
学英语单词
alimentary canal, alimentary tract
aluminium chloride process
apparent fineness
appropriations reserve
arkadia
Aureille
automatic delivery control valve
banaz r.
be used to
Bitis gabonica
blubbery
blue litmus
box truss
broad jokes
buxaminol
by pass system
capsular veins
castner electrolyzer
chenodesoxy cholate
chloracyl chloride
ClipBook Chip
coldshortness
commutation capacity
cordwood module
corn meal culture medium
crank out something
curtal ax
dafuq
Debdens
detector compartment
disable interrupt instruction
dullsvilles
duty of declaration
eppley
erupted
Euchaetias
exomorph
extra heavy spring
financial secretary
gauge blocks
genus Nyctaginia
grand mean
gretch
Grovertown
guarantor race
Hazard Risk Category
heavy bombardment aeroplane
helipads
hetterly
high altitude station
immunodeficiencies
incomparable product
intragentic
ionization dose-meter
isocount surface
jamdat
Kunozh
Kuwa-U
leather coating
liquid encapsulated czochralski
liquidation holdings
loosely-suppressible point frame
lyzyme
method of saddle points
minor placing
mirrens
monitoring cord
musculus articularis
myringectomy
nodular necrotizing scleritis
non-flexible packaging
Object Database Management Group
percent prewhitening
percentage of injury
pinch frequency
plain stitches
plummier
post-nationalist
premonstration
prozymogen granule
put on the mask of
remasculinizing
saraba
secondary bifurcation
smilan
stanislau
sule
Syncalathium roseum
tear-off band
to hydrate
toxic exanthem
translation field
Tulipa heteropetala
uncompassionately
unrestrained member
upright style
vandendriesschreite
vinyl recording
violaite
virginian witch hazels
wire matrix printers
wiring layout