<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><link rel="stylesheet" href="home.css" tppabs="home.css"><link rel="stylesheet" href="eng.css" tppabs="eng.css"></head><body bgcolor="white" text="black" topmargin="10" leftmargin="0" marginwidth="0" marginheight="0"><table width="540" border="0" cellspacing="0" cellpadding="0" align="center" height="15"><tr><td> </td></tr></table><div align="center"><table width="540" border="0" cellspacing="0" cellpadding="0"><tr><td colspan="3" class="p2" width="760"><b>21.9 had better表示"最好"</b></td></tr><tr><td height="254" width="20"> </td><td height="254" width="520" valign="top" class="p2"><br> had better 相当于一个助动词,它只有一种形式,它后面要跟动词原形。<br> had better do sth <br> had better not do sth<br> It is pretty cold. You'd better put on my coat.<br> She'd better not play with the dog. <br><br> had better have done sth表示与事实相反的结果,意为"本来最好"。<br> You had better have come earlier.<br> <br></td></tr></table></div></body></html>