American scientist say that they believe trees can warn' z6 \) C! v' i5 n% s2 W( h
each other of danger releasing chemicals into the air.__1__
; E- Q0 {2 b) ~0 W The theory was announced by the National Science__2__
6 @- h$ K" ^8 L, n! C8 t7 i Foundation is the result of studies carried out by2 _. i- T% f, P( @/ W3 J
scientist in the states of Washington and New
! ]2 \0 W8 x0 ?- [! Z Hampshire. The scientists said they found that when
7 {9 c* _ m5 ^, f( l trees are against attack by disease or insects, nearby__3__4 n, ~1 G$ r( o+ o3 r
trees take the same offensive actions as the trees__4__
# T' }7 \* c- d, N; ~) h being attacked. And they said it appears that the
+ N( l, ~" c& i1 ~, E1 A trees being attacked may produce and send out3 M: K& L; s) ] }
chemicals to warn the other trees. A United Nations' Q2 K$ ~0 V+ n: f& J
report says Asian countries are faced major environ-__5__
1 d3 L3 R5 [9 K5 |2 ]' G mental problems. The report released in Bangkok2 Q$ C6 | J1 k
said that parts of China, India, Iran, Afghanistan and
( Y% |# {: S* q8 @ Q Pakistan were threatened by man-made and natural__6__
6 @8 P4 T% K- c0 Z6 R$ F0 r5 y events that turn productive land into deserts. I said, M) m- E4 ~. {9 l5 v+ R
the most serious threat against the area is the rapid# g% H1 S+ u8 u
expansion of Asia's rain forests, or woods, especially__7__+ j4 p5 c& j+ g; m6 R: e2 L$ [
in Malaysia, the Philippine and Thailand. The report o5 E1 O0 d$ R. W
said the reduction in woods areas have already led to __8__
: m9 K" {1 J: o# h- [ increased flooding, water shortages in the dry seasons
9 m) E, p& h0 ^) n and the loss of farm lands. A top UN official said that
. f6 H2 L0 T" d/ ~" k% }# j as much as 70% of the woods in Asia would be gone in__9__
2 `; B4 h4 Q9 ~6 U) x 20 years unless actions are taken now to save it.__10__
1 H& e- S7 c: o 答案及解析：
% z, s& n- {9 e+ L. ^5 o 1. 在releasing前加by) q6 n& S' h u
用by引导releasing chemical into the air，作方式状语
/ M% V) c' h4 W/ D4 Z, t 2. 删除was或在was之前加which/that
[/ v9 u5 e1 t) @ 或过去分词announced或用which/that was announced 做定语修饰the theory。The theory的谓语动词为is
+ h6 U( j# y# K! N$ W4 [0 ?) | 3.against—under7 K0 H8 ?' L* w# S' k
习语（be）under attack，受攻击
* x' m5 I; o7 V) t+ B6 `) h5 _ 4. offensive—defensive" \6 t. i, r9 U9 T( c% A
根据常识，当生物收到外界的威胁时，也会进行自卫8 r5 H' B+ r6 D/ n% P6 H8 a4 t+ h
5. faced—facing或在faced之后加with
: d. k* I* e% C- T1 R 动词face作“面临、应对”解时，有两种结构：被动态“主语+be+faced with+宾语”，主动态“主语+face+宾语”
9 _! D! {$ P! S1 E8 T& u 6. were—are
6 K/ Q6 e+ B+ i( X 报告的发布是在过去的某个时候，所以主语中的谓语动词发生在过去时，但报告的内容陈述的是一个事实，谓语动词应该是一般现在时! c; L/ `6 v$ d. L/ D! t E3 Q7 A2 v
7. expansion—shrinking
# [# ]* W+ `3 i' V5 D4 B, A 与上文“可耕地变成沙漠”一样，亚洲的雨林面临快速减缩，而不可能扩大，而且下文中有the reduction in woods areas6 x9 A( i0 g# }1 O+ _
8. have—has
" d% w% I5 Z" }) `2 ~: B! g6 V8 C7 D 主语为the reduction in woods areas4 \0 p2 X$ I V5 W" v3 o3 }5 D6 v W
9. would—will
* A0 P" X" W' g7 }! D4 f UN官员陈述的是一个完全可预见的事实
' V9 R( f) z* O- O8 \8 t0 t 10. it—them. B+ ]$ x9 J- y+ X3 j4 G
them指代the woods |
发表于 2012-8-14 11:29:10
