Can you tell me what to do if I use this version of the code?

    <p id="block1"> HIDEN TEXT</p>
    <p id="show" onclick="$('#block1').show(1000)"> SHOW TEXT </p> 
    <p id="block2"> HIDEN TEXT</p>

It is necessary that when you click on an element SHOW, the second element (id="block2") is displayed too