/a?/在发音时，唇形和舌位从/??/向/?/平滑过渡。读元音/?? /的时候，双颌尽量打开，嘴巴张大，像看病时对医生张嘴说“啊”那样;舌身下沉，想象嘴巴里含了一个烫山芋，想尽快把它吐出来的感觉。然后舌身向前顶，下颌收回，发元音/?/。注意两个元音之间的过渡要平滑，音程占比是大约7:3。对于母语是中文的学习者来说，这个音标经常会由于/??/的发音不到位，而形成类似中文“爱”的发音。
仔细听音频，体会两个音素构成一个双元音的结合方式。
【单词辨音】
bar buy
bark bike
pa pie
R eye
cart kite
heart height
【短句对比】
That was a good bar. / That was a good bike.
What a noisy bark! / What a noisy bike.
He loves his pa. / He loves his pie.
It's got two R's. / It's got two eyes.
It's a cart. / It's a kite.
Check the heart. / Check the height.
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