3.對(duì)于集合當(dāng)時(shí),你是否注意到一個(gè)極端情況:或,求集合的子集時(shí),是否忘記了?當(dāng)研究的時(shí)候, 你是否考慮到的情形?當(dāng)時(shí), 你是否注意到的情形?
2.數(shù)形結(jié)合是解集合問題的常用方法:解題時(shí)要盡可能地借助數(shù)軸、直角坐標(biāo)系或韋恩圖等工具,將抽象的代數(shù)問題具體化、形象化、直觀化,然后利用數(shù)形結(jié)合的思想方法解決;
1.理解集合中元素的意義是解決集合問題的關(guān)鍵:弄清以及數(shù)集中元素是函數(shù)關(guān)系中自變量的取值?還是因變量的取值?還是曲線上的點(diǎn)?… ;看清描述法表示的集合中的元素是數(shù)集還是點(diǎn)集。
第三節(jié) 書面表達(dá)(滿分30分)
Suppose you want to buy a MP3, but you do not have enough money. In 100 words make a plan to solve this financial(經(jīng)濟(jì)的) problem. your writing should include:
1. how much money you need;
2. from where to get money;
第二節(jié) 短文改錯(cuò)(共10小題;每小題1分,滿分10分)
Dear classmates,
Now I ’d like to tell you why I learn English. I often 1.
read English aloud and try to learn something important 2.
by heart, it helps me remember it easily and forms 3.
good habit of thinking in English. I listen a lot and 4.
talk with others in English. In this way, I was improved 5.
my spoken English. I keep a diary in English every day but 6.
my writing English is becoming better and better. I also try 7.
my best to master the necessary grammar. With this means, 8.
I can express myself in English correct. That’s the way I 9.
had been learning English. I hope it will be useful to you. 10.
That’s all. Thank you.
第二節(jié) 單詞拼寫(共10 小題;每小題1分,滿分10分)
1.I found it hard to keep my b_______ on the icy path and so I fell over.
2.Yesterday evening we _____(出席,參加) the concert, which was really a success.
3.I haven’t seen you for so many years that I can hardly r _________you.
4.He was so angry that he could hardly c______ himself.
5.It is ________(慷慨的) of you to pay for our travel.
6.New Zealand is s________ by the Pacific Ocean to the north and east.
7.What you learn from practice has much e_____ on your character training.
8.A (某個(gè),某些)Mr. Brown called to see you.
9.The new shop across the road has taken away some of my best ________(顧客).
10.The whole class is d_______ into four groups.
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