|   
			ESL Forum: 
			
			
			
			Techniques and methods 
			in Language Teaching 
			
			Games, activities 
			and teaching ideas 
			
			Grammar and 
			Linguistics 
			
			
			Teaching material 
			
			
			Concerning 
			worksheets 
			
			
			Concerning 
			powerpoints 
			
			
			Concerning online 
			exercises 
			
			
			Make suggestions, 
			report errors 
			
			
			Ask for help 
			
			
			
			Message board 
			  
			
			
			
			
			 | 
 		
		
		ESL forum >
		
		
		Grammar and Linguistics > Urgent Help needed please      
			
		 Urgent Help needed please  
		
			| 
				
					| 
					
					
 
 naryana
 
   | 
						
							| Urgent Help needed please 
 |  
							| Hi everyone ...   Mars has an atmosphere, but its gases are not the same as Earth �s.   Can anyone tell me where should the apostrophe be added in the underlined word? This sentence is taken from student �s book...shouldn �t it be written this way: gas �s? I would appreciate it if someone enlightens me  �cause i felt stupid when one of my students asked me for further explanation..thanks and Merry Christmess,,,, |  21 Dec 2010      
					
					 |  |  
			| 
 
					
					
					
				 
 |  
			| 
				
					| 
					
					
 
 PhilipR
 
   | 
						
							| No apostrophe needed. 
 ... its gases (= they) are... 
 (gas is used as a countable noun here, hence gases - there are several gases on Mars such as nitrogen, helium and argon) |  21 Dec 2010     
					
                     |  |  
			| 
				
					| 
					
					
 
 libertybelle
 
   | 
						
							| There is no apostrophe in gases. The possessive or genitive is the word its.
 The possessive its has no apostrophe either - just like
 his
 hers
 theirs - their
 ours -our
 mine
 yours has no apostrophe either.
 
 |  21 Dec 2010     
					
                     |  |  
			| 
				
					| 
					
					
 
 naryana
 
   | 
						
							| Thanks soooooooo verrrrrrrrrry much to both of you people for ur immediate replies...wish you a very relaxing day .... |  21 Dec 2010     
					
                     |  |  
			| 
				
					| 
					
					
 
 etoilist
 
   | 
						
							|   I think what your student wanted to know is the place of the apostrophe on the word Mars because it ends with an  �s � and not on the word  �gases � . It is obvious that the word gases does not need an apostrophe because of  �its �.   Mars has an atmosphere, but its gases are not the same as Earth �s. maybe the student had  �Mars � instead of  �its � in the sentence. If the sentence is as i guess it is the apostrophe would be on the letter  �s �. It is also correct to put an  �s 
Mars has an atmosphere, but Mars � gases are not the same as Earth �s. |  21 Dec 2010     
					
                     |  |  
			| 
				
					| 
					
					
 
 libertybelle
 
   | 
						
							| Etoilist - Naryana wrote: This sentence is taken from student �s book...
 
 The text - as far as I can see went like this:
 Mars has an atmosphere, but its gases are not the same as Earth �s.
 
 That sentence is correct.
 
 There is no need to use the name Mars twice in one sentence - that �s why we use .pronouns.
 
 |  21 Dec 2010     
					
                     |  |  
	
	   |