If a word,expression,etc.is on the tip of your tongue,you usually know it but have difficulty remembering it at that moment.(就在嘴边的，差一点就能想起的) When you say someone's head is like a sieve or someone has a memory like a sieve,you mean that they forget things very easily.(记性坏，健忘) If your mind goes blank or has gone blank,you are suddenly not able to remember a fact or piece of information at a time when you need it..(脑子一片空白) If a piece of information goes in one ear and out the other,it is heard but either ignored or quickly forgotten.(（一只耳朵进一只耳朵出，当作耳边风) STEP TWO 1B 2D 3A 4C 2 Do You Have a Good Memory? STEP TWO Sample I got 16 in this quiz.According to the results,I have a good memory.I can say I'm extremely good at remembering facts and figures for exams,birthdays,telephone numbers,etc.,but I have a poor memory for remembering things like what I had for dinner,what I was wearing,etc. I think a person can remember what they need and want to remember.In other words, one's purpose and motivation make it possible for them to recall facts.They may find it difficult to remember facts about the geography of a country that doesn't interest them,but can easily remember things about the country they're going to visit.Why?Because they are motivated and this helps them to concentrate.Increased concentration,in tum,makes the information easier to remember. To sum up,one's purpose dictates what to look for and remember,and therefore directs their attention to what they want to know. STEP THREE Sample Yes,I once had a very embarrassing experience.One day,when I was walking on the street,I saw a young lady nodding and smiling at me and I began to wonder who she was. When she approached,she asked me about my college life in the past two weeks.Though I didn't know whom I was talking to,I told her everything,including the fact that I could seldom see my advisor and had no one to tum to for help.An odd smile crossed her face and she looked a little bit embarrassed.Then she gave me a phone number along with her name.ItIf a word, expression, etc. is on the tip of your tongue, you usually know it but have difficulty remembering it at that moment.（就在嘴边的，差一点就能想起的） When you say someone’s head is like a sieve or someone has a memory like a sieve, you mean that they forget things very easily.（记性坏，健忘） If your mind goes blank or has gone blank, you are suddenly not able to remember a fact or piece of information at a time when you need it.（脑子一片空白） If a piece of information goes in one ear and out the other, it is heard but either ignored or quickly forgotten.（一只耳朵进一只耳朵出，当作耳边风） STEP TWO 1 B 2 D 3 A 4 C 2 Do You Have a Good Memory? STEP TWO Sample I got 16 in this quiz. According to the results, I have a good memory. I can say I’m extremely good at remembering facts and figures for exams, birthdays, telephone numbers, etc., but I have a poor memory for remembering things like what I had for dinner, what I was wearing, etc. I think a person can remember what they need and want to remember. In other words, one’s purpose and motivation make it possible for them to recall facts. They may find it difficult to remember facts about the geography of a country that doesn’t interest them, but can easily remember things about the country they’re going to visit. Why? Because they are motivated and this helps them to concentrate. Increased concentration, in turn, makes the information easier to remember. To sum up, one’s purpose dictates what to look for and remember, and therefore directs their attention to what they want to know. STEP THREE Sample Yes, I once had a very embarrassing experience. One day, when I was walking on the street, I saw a young lady nodding and smiling at me and I began to wonder who she was. When she approached, she asked me about my college life in the past two weeks. Though I didn’t know whom I was talking to, I told her everything, including the fact that I could seldom see my advisor and had no one to turn to for help. An odd smile crossed her face and she looked a little bit embarrassed. Then she gave me a phone number along with her name. It