课时提能练(三十五)Book7Unit1Livingwithtechnology课时作业A:基础层面Ⅰ
语境语法填空AWithmobilephoneswecankeep1
intouchwithotherswhereverweare
Buttherearealsosome2
obvious(obviously)disadvantagesofmobilephones
Forexample,nomatterwhatthe3
circumstances(circumstance),whenthephonerings,everythingstops4
sothatthecallcanbeanswered
Asaresult,somepeoplerejectmobilephones
Idon'toppose5
using(use)mobilephones
What'smore,Ithinkitisconvenienttosendtextmessagesbymobilephones
BThefirstpublicTVbroadcastsweremadeintheUSAin1925
Manydifferentpeoplecontributed1
tothedevelopmentofTV
MostearlyTVbroadcastsweremade2
using(use)asystemdevelopedbyJohnLogieBairdintheUK
However,hissystemwasveryprimitiveandhadmanydrawbacks
PhiloFarnsworthmadeimportant4
breakthroughs(breakthrough)inthedevelopmentofTVin5
thelate1920sandearly1930s