E. A. Abdalina, R. J. Hoshimova

XXI. Ushbu so’zlarni gaplarning mazmuniga qarab
nuqtalar o’rniga qo’ying:

(a growing threat, by-products, significance, accept, pollution.)

1. 
   The ecological problem is very important because of its great … for the whole of mankind.
   
2. 
   It is Vernedsky’s concept of the biosphere that we … today.
   
3. 
   Man’s interference in nature is steadily increasing that means … to the environment.
   
4. 
   The … of man’s activities are polluting the air we breath and the earth we live on.
   
5. 
   Chemical industry became the source of … of our rivers, and seas with many materials.
   

XXII. Dialogni notanish so’z va iboralarini lug’atdan toping, tarjima qiling va rollar bo’yicha o’qing:

A. – Mr. Jones, I should like to know your opinion about the book I came across in the library. This subject lies within the sphere of my own interests. Here it is.

B. – Oh, it is book by my colleague and personal acquaintance, John Brown. He is one of our younger scientists. His works show a great deal of talent.
A. – I am of the same opinion, but the fact is that I am not well acquainted with the names of the British scientists contributing to the development of this problem.
B. – Well, I strongly recommend you the report by John Forsyte made at the conference.
A. – Is it published?
B. – Yes, it was published under another title and cover the main investigation of the past decade.
A. – Where was it published?
B. – In the Transaction of the Royal Institute, Physics Series, Volume 134. I’ll send you the bibliographical card.
A. – Thank you for the trouble you have taken you’ve instructing me.
B. – You’re always welcome and I hope that your essay will be a success.


Mustaqil ish uchun vazifa


XXIII. Matnni o’qing va tarjima qiling: