7.Not only am I interested in photography, but I took a course at university, so it’s actually of special interest to me.
[译文]我不仅对摄影感兴趣,而且在大学我还修过这门课程,因此对我来说的确很有趣。 这个句子是以not only开头的部分倒装句,需要注意的是,Not only…but (also)…倒装句中,but(also)引导的句子必须用正常语序。
8.You have three layers of skin that protect you against diseases, poisons and the sun’s harmful rays.
[译文]你有三层皮肤来保护你免遭疾病、毒药和有害光线的侵害。 protect动词,“保护、维护”,用于句式“protect+名词+against/ from+名词”。