People become quite illogical when they try to decide what can be eaten and what cannot be eaten.

人们在决定吃什么或者不吃什么的时候，往往变得不合情理。

当涉及到或谈及到叙述客观事实的时候

it comes to sth …………

it comes to doing sth ……

用于when 引导的时间状语从句

Eg.:He never complains when it comes to helping his wife with the house work.

for instance == for example

consider (to be)...

on the other hand 转折连接词，表示而另一方面

at the idea of: at 介词搭配作状语，表示当......就......；一......就......

at the idea of 一想到

at the sight of 一看到

at the mention of 一提到

at the news of 一听到......消息

at the touth of 一触摸到......东西

at the sound of 一听到......声音

at the thought of 一想到

Eg.: I was glad at the thought of getting something te eat.

I always love at the mention of ghost story.

stick to + 名词==insist on doing sth == persist in doing sth

practice 表示习俗，做法

habit表示个人习惯

custom社会的风俗或习俗

Eg.: Early to bed and early to rise is good habit.

It is now quite common practice for married women not to take their husband’s second name.

The practice of closing shops on Sundays.

My practice to study English is to read everyday.

the custum of giving present at Christmas

Social customs vary greatly from country to country.

in many northern countries.

The sad truth is that most of us have been brought up to eat certain foods and )

that引导表语从句，说明truth的内容

bring up抚养

Eg.: Joe is born in England, but brought up in France.

She was brought up to beliee that money is the most (great) important thing in life.

他从小到大一直认为金钱是生活中最重要的东西。

被动语态形式，表自小长大，在成长的过程当中已经习惯于......

I’ve been brought up to eat fish, just because my mother is fond of fish as well.

He has been brought up to eat fring potatoes just because his parents are fond of that.

He gave much attention to bring up his children.

stick to = keep to; not give up

Eg.: We stick to them all our lives.

I made my decision and I am going to stick to it. (to介词)

stick to the idea

stick to the plan

insist on doing sth. 坚持做某事

persist in doing sth. 坚持做某事