have weight with . have effect on对…有影响；对…产生效力
His opinions have great weight with us．他的意见对我们影响很大。
have words . dispute；quarrel争执；争论
Every time they two get together they have words．他们俩一到一起就吵嘴。
He had words with his wife last night．昨晚他和妻子发生口角。
have a look at . take a look at . look at for a moment看一看
Take your hat off and let me have a look at it ．把你的帽子摘下来让我瞧瞧。
have charge of . take charge of . have responsibility for负责
He has charge of the project．他负责这个工程项目。
head for . travel in the direction of向…方向运动
The students headed straight for home after class．课后学生们直接回家了。
The police expected the criminals to head for the coast．警察预料罪犯会逃往海岸方向。
They set sail at dawn and headed for the United States．他们的船在黎明时启程驶向美国。
You are heading for an accident if you drive after drinking．你酒后驾车是要出车祸的。
He is heading for trouble if he goes on behaving like that．要是他继续那样胡来，他是自找麻烦。
If you go on with him，you're heading for disaster．如果你继续和他在一起，那你就是走向灾难。
head off . block；stop；prevent阻截；停止；阻止
We tried our best to head him off from making a speech because he would reveal confidential in formation．我们竭力阻止他去演讲，因为他会泄露机密的。
He will get into trouble if someone doesn't head him off．如果没有人阻止他，他会惹上麻烦。
They could not think of a good way to head off the inflation．他们想不出一个好办法来阻止通货膨胀。
head off . get in front of and stop；turn back or aside超前拦截或截回
The hunters decided to head the animals off．猎人决定拦截这些动物。
Take this small lane and you can head him off at the crossroads．走这条小巷，你就能在十字路口赶到他前面去。
head off . divert thought or attention of使思想或注意力转移开去
He tried to head off awkward questions about his past．他设法避开有关他过去情况的尴尬问题。
The thief realized that the police were following him，but he succeeded in heading them off at the junction．小偷发现警察在跟踪他，可是他在十字路口把他们甩掉了。
head on . with the head or front pointing directly towards an object头直向；迎面相撞
The ship struck the rocks head on．那只船迎头撞上了礁石。
The two cars crashed head on．两车迎面撞上
head out . leave；start out离去；出发；启程
I have a long way to go before dark．I'm going to head out．天黑之前我还要走一大段路程，我得上路了。
head start . a beginning before somebody ；lead or advantage at the beginning抢先；开始时领先；先起步
They are well ahead of us in science because they have made a head start by several years．因为他们比我们先动手几年，所以他们在科学方面领先我们很多。
The other racers knew they couldn't catch John if he got too big a head start．其他赛车手都知道如果一开始就让约翰抢先太多，他们就追不上了。
Joe had a head start．He began to study earlier than we did．乔领先我们，他在我们开始之前就已经准备功课了。
head start . a good beginning好的开端，好的开始
Let's get a head start in painting the house by getting up early．我们早一点起床粉刷房子。
The teacher gave the class a head start on the exercise by telling them how to do the first two problems．老师在班上给学生讲了如何做头两道题，给他们一个好的开始。
head to head . face to face面对面
We were talking head to head．我们面对面地促膝谈心。
head up . serve or act as the head of；direct指挥；领头
She heads up a staff of fifty，half of them lawyers．她领导了五十名职员，其中一半是律师。
Mr．Jones will head up the new business．琼斯先生将领导这家新公司。
Who is the best person to head up this department? 谁领导这个系最适合?
head up . be at the head or front of居首位；领头
The elephants headed up the whole parade．大象走在整个队伍的最前列。
One of my jobs at the newspaper office was to head up the page before it was printed．我在报社的工作之一是在报纸印刷前给版面上加标题。
head up . have a source；originate起源；发源
This river heads up in the Tianshan Mountains．这条河发源于天山山脉。
heads up . keep your head up and be careful or ready（used as a warning to prepare for something or clear the way）注意；小心；留神（用以警告准备做某事或让路）
“Heads up！”said the waiter carrying the hot food．“小心，请让路！”服务员端着热腾腾的菜肴说。
Heads up，boys！A train is coming．孩子们，当心！火车来了。
Heads up now！You can do better than that．这次小心些，你就可以做得更好点。