2012年大学英语四级语法指导29

会计考友

1. As teachers we should concern ourselves with what is said， not what we think _C_.   
　　A have to be said B must say C ought to be said D need to say  
2. Once environmental damage _A_， it takes many years for the system to recover.  
, Q  _( k. j" `( D' S" e' m　　A is done B is to do C does D has done  
3. Studies show that the things that contribute most to a sense of happiness cannot be bought， _B_ a good family life， friendship and work satisfaction.  
' l1 j2 I+ ~$ U6 \4 i　　A as for B such as C in case of D in view of  
5 I( J- N( U: W+ q　　contribute to 对…做出贡献。  
4. He will agree to do what you require _D_ him.  
! ?9 c7 F/ n; T　　A for B from C to D of  
　　require sth. of sb. 要求某人做某事。  
5. The mere fact _A_ most people believe nuclear war would be madness does not mean that it will not occur.  
* X7 M3 M0 y. o: Q! R  S. o5 P　　A that B which C what D why  
+ m& L! E" a7 |( x2 J$ _. c. p" l　　fact后面要加同位语从句。