像 (xiàng) is used to compare a specific characteristic of two things or people, and can be used in the following structure:

Expressing just like with "像"

Structure

Noun 1 + 像 + Noun 2 + 一样 + Adj. / Verb

Noun 1 + 像 + Noun 2 + 这么 / 那么 + Adj. / Verb

Examples

你怎么像我妈一样啰嗦! Why do you sound as nagging as my mom does!
他生气的时候会像疯子一样大叫。 He would scream like a lunatic when he gets angry.

Expressing not as ... as with "不像" or "没有"

Structure

Noun 1 + 不像 + Noun 2 + 这么 / 那么 + Adj. / Verb

Noun 1 + 没有 + Noun 2 + 这么 / 那么 + Adj. / Verb

Examples

这个男老师不像那个女老师那么严格。 This man teacher is not as strict as that woman teacher.
我们没有你那么喜欢孩子。 We don't like kids as much as you do.

See also

Sources and further reading

Books

Boya Chinese Lower Intermediate 2 (博雅汉语准中级加速篇) (pp.80)