Almost every new innovation goes through three phases. ) W# K& A# g! A
When initially introducing into the market, the process 1. . q$ w3 d3 J; P* C5 b; F f
of adoption is slow. The early models are expensive and / q y& L |+ N; Q) v" P$ r) {
hard to use, and perhaps even unsafe. The economic 2 K. ^( Y8 b6 [# O' V
impact is relatively great. 2. 5 F1 `+ o7 c0 @0 U! E7 I- X
The second phase is the explosive one, where the innovation % i$ e, n- n" j5 r6 {9 i- O2 I( I
was rapidly adopted by a large number of people. It gets 3.
4 b$ G1 [; |1 b: f5 M$ f: }/ X) L) V4 {1 N cheaper and easier to use and becomes something familiar. 7 F6 M& g) `+ g( q8 R' w
And then in the third stage, diffusion of the innovation
) @2 i5 q% z* O6 T( [% C slows down again, as if it permeates out across the economy. 4. 8 b' Q+ V3 l7 o; L4 C1 X
During the explosive phase, whole new industries spring
, k# G2 }3 [& F up to produce the new product or innovation, and to service - a6 i) l) [' q' x8 ^& C, _
it. For example, during the 1920s, there was dramatic 5. ( { o$ y3 t! i( t, D o$ u
acceleration in auto production, from 1.9 million in 1920
4 ?" z; |7 D$ a to 4.5 million in 1929. This boom was accompanied with all 6.
, ^8 R& k! Q6 y# o5 H. | sorts of other essential activities necessary for an ! S, `. d2 g% o# D* ]' v
auto-based nation: Roads had to been built for the cars to 7. 2 w7 F, w) r! K7 ^3 V2 ?
run on; refineries and oil wells, to provide the gasoline;
. w6 a/ b5 I0 c8 K/ ?% O* c0 N6 ]" { and garages, to repair it. 8. / Y9 E" x0 S+ j" @4 n
Historically, the same pattern is repeated again and again
* A; x* [; v* |3 q3 \ m with innovations. The construction of the electrical system
5 G% f8 u+ `+ R" W# n requested an enormous early investment in generation and 9.
8 L4 m' M$ R, O$ b/ X5 e distribution capacity. The introduction of the radio was 5 x* x" G' Z) |% ]9 @2 y5 A
followed by a buying spree (无节制的狂热行为) by Americans
, z; g3 s6 o6 X/ q& r; a what quickly brought radios into almost half of all households 10.
& }3 L# o u [* A by 1930, up from nearly none in 1924. + L6 \9 O: } p! ~2 E
3 r- ^4 o; @; v( i2 ~! g) A
答案: 9 [( t2 r1 M! c3 a6 u- e0 A1 l! ?5 l
1. introducing改为 introduced;
+ r3 y" J' K" J. g1 M4 X 2. great 改为 small;
" ~. T$ G) i% u! _0 a% F' I$ ? 3. was改为is; * B6 r- K' T* m4 `1 f
4. as 后面的 if 去掉; , g W2 J. Q! r9 c8 R, B! j
5. was 后面加a; 0 q4 F% |6 q3 m& e, [' I" b
6. with改为by;
3 }1 J$ F, I, k# d0 ~+ m 7. been改为be;
3 G2 \$ t( J$ Z2 [- K 8. it改为them; [4 i( y% O8 [9 K' x+ y- D
9. requested改为required;
6 h3 X" D- U1 A/ h, ~ 10. what改为that。 |