第一，迷你對話

A: How're you going to prepare for the test?

你想怎樣復習來準備這場考試？

B: Well, I'm not going to learn the grammatical rules by heart.

嗯，我不會去背語法規則的。

A: But those are exactly the things I was going to do.

可這正是我要做的。

B: No, you don't have to do that. The teacher is going to examine the language skills, not language knowledge.

不，用不著。老師要考的是語言技巧，不是語言知識。

A: Are you sure?

你敢肯定？

B: I say this for certain.

絕對肯定。

第二，詞海拾貝

for certain

exp. Definitely or for sure. （肯定，確定）

e.g. ——How many people are coming to dinner tonight? —— I can't say for certain—my family tends to just show up without responding to invitations.

——今晚有多少人來吃飯?——我不能肯定地說，因為我的家人一般都是不速之客。

e.g.No one can say for certain how the world’s climate is likely to change.

沒有人能肯定地說世界氣候會如何變化。

第三，語匯積累

1.prepare for：為......做準備

e.g. She decided to forgo the party and prepare for the English exam.

她決定不去參加聚會,為英語考試作好準備。

e.g. She rolled up her sleeves and began to prepare for supper.

她卷起袖子開始準備晚餐。

2.by heart：憑記憶

e.g. He went to see his favorite band in concert and knew all the songs by heart.

他去看他最喜難的樂團的演唱會，而且記得他們所有的歌曲。

e.g. Why don't you write out a speech and get it by heart?

你為什么不寫份講稿，然后把它背下來？

3.learn something by heart：記住，背誦，默誦

e.g. We had better learn by heart as many sentence patterns as we can.

我們最好盡可能多背句型。

e.g. The children all had to learn the poem by heart.

孩子們都得把這首詩背出來。

e.g. Learn this by heart.

記住這一點。

e.g. It' s no use learning the text by heart without understanding it.

背誦課文而不理解它是沒有用的。