poison的形容词形式是什么

　　The leaves of certain trees are poisonous to cattle.

　　某些树的叶子会毒害牲畜。

　　All parts of the yew tree are poisonous, including the berries.

　　紫杉树全身都有毒，包括其果实。

　　Our cars pump out thousands of tonnes of poisonous fumes every year.

　　我们的`汽车每年排放出成千上万吨的有毒尾气。