Reciting only the verses that one knows?
Question

                During recitation, is it permissable to recite what you know of one surah? For example, you only know three ayats of Suratal Qariah because you are in the process of learning it, is it permissable to recite just the three ayats you know until you have learnt the whole surah?.
Praise be to Allah.Firstly: 
Reading Qur’aan is one of 
    the greatest of good deeds and acts of worship for which a Muslim will be 
    rewarded. There are many texts which speak of the virtue of that, such as 
    the words of the Prophet  (peace and blessings of Allaah be upon him): 
    “Read the Qur’aan, for it will come on the Day of Resurrection interceding 
    for its companions.” Narrated by Muslim (804) and by al-Bukhaari in a 
    mu’allaq text. 
It was narrated that 
    ‘Abd-Allaah ibn Mas’ood said: The Messenger of Allaah  (peace and 
    blessings of Allaah be upon him) said: “Whoever 
    reads one letter of the Book of Allaah will have one hasanah for it, and 
    each hasanah is a tenfold reward. I do not 
    say that alif-laam-meem is a letter, rather alif is a letter, laam is a 
    letter and meem is a letter.” Narrated by al-Tirmidhi (2910) who aid: 
    it is hasan saheeh. Classed as saheeh by al-Albaani in Saheeh al-Tirmidhi. 
Secondly: 
It is permissible for a 
    person to recite whatever he can of what he knows of the Qur’aan –according 
    to his ability. 
It was narrated from 
    ‘Aa’ishah (may Allaah be pleased with her) that the Prophet  (peace and 
    blessings of Allaah be upon him) said: “The one 
    who recites the Qur’aan and learns it by heart, will be with the noble 
    righteous scribes (in Heaven) and the one who exerts himself to learn the 
    Qur’aan by heart and recites it with great difficulty, will have a double 
    reward.” Narrated by al-Bukhaari (4937). 
The hadeeth indicates that 
    the one who finds it difficult to read Qur’aan will be rewarded for his 
    reading. This is all aimed at encouraging one to read Qur’aan and not to 
    forsake the Qur’aan. 
So there is nothing wrong 
    with a person reciting the verses that he knows, whether it is three verses 
    or more or less. 
If he can read but he has 
    only memorized a few verses, then he is advised to devote some of his time 
    for memorization and some for reading from the Mus-haf so as to attain the 
    reward for reciting, so that he may combine the two: memorization and 
    recitation. 
We ask Allaah to help us 
    and you to memorize His Book and to read it during some hours of the night, 
    and at the ends of the day (cf. Ta-Ha 20:130), for He is Able to do that. 
And Allaah knows best.