高中三年級(jí)英語(yǔ)上冊(cè)第一課時(shí)課件

1、GrammarWhat will I do if it is sunny this weekend?Part1:If 的用法 1.I want to know if he will go to park with us.2. We will have a picnic if it doesnt rain.3. If you boil water, it becomes steam. 4. If you feel tired must .賓語(yǔ)從句賓語(yǔ)從句條件狀語(yǔ)從句條件狀語(yǔ)從句語(yǔ)法語(yǔ)法1：if作為賓語(yǔ)從句作為賓語(yǔ)從句的引導(dǎo)詞，引導(dǎo)賓語(yǔ)從的引導(dǎo)詞，引導(dǎo)賓語(yǔ)從句。（是否）句。（是否）語(yǔ)法語(yǔ)法2：if

2、（如果）引（如果）引導(dǎo)的條件狀語(yǔ)從句導(dǎo)的條件狀語(yǔ)從句 if 用于賓語(yǔ)從句中用于賓語(yǔ)從句中原句式原句式引導(dǎo)詞引導(dǎo)詞從句語(yǔ)序從句語(yǔ)序一般一般疑問(wèn)句疑問(wèn)句whether/if改為陳述句改為陳述句 語(yǔ)序語(yǔ)序由從屬連詞由從屬連詞whether, if 引導(dǎo)的賓語(yǔ)從句引導(dǎo)的賓語(yǔ)從句e.g. 1. I want to know _. （他是否跟我們一起去公園）他是否跟我們一起去公園）2. Ask him _. （他是否能來(lái)）他是否能來(lái)）3. I didnt know _.（是否要下雨）是否要下雨） if (whether) he will go to the park with us whether (if

3、) he can come whether it was going to rain or not當(dāng)句末為當(dāng)句末為or not時(shí)，引導(dǎo)詞只能用時(shí)，引導(dǎo)詞只能用whether而不能用而不能用if.If 與whether 的區(qū)別1. I dont know _ he will come or not.2. I dont care of _ he is handsome.3. He wondered _ to stay here the next week.4. _ he will come is not decided. 與與or not 連用只能用連用只能用whether介詞后只能用介詞后只能用

4、whether與與to do 不定式連用只能用不定式連用只能用whether作主語(yǔ)只能用作主語(yǔ)只能用whetherIf 引導(dǎo)條件狀語(yǔ)從句引導(dǎo)條件狀語(yǔ)從句 If it is sunny this weekend, what will you do ?If it is sunny this weekend, I _ football with my classmates.If it is sunny this weekend, I_. will playIf it is sunny this weekend, what wont you do ?If it is sunny this weeken

5、d, I _.If it is sunny this weekend, I _.Wont stay at home wont watch television If you have a picnic at weekends,what will you buy? If_,_.If dog bites you, what should you do?Ask for help from teachers / parents / friends.wash the wound call for helptake medicinesee the doctorIf a dog bites you, fir

6、st, you should_.Then, you should_.Next, you should_. And you shouldStay cool if 條件句不一般條件句不一般, 幾個(gè)要點(diǎn)記心間幾個(gè)要點(diǎn)記心間; 條件句條件句,放在前放在前, 逗號(hào)要放句中間。逗號(hào)要放句中間。 條件句表可能，條件句表可能， 主將從現(xiàn)不一般；主將從現(xiàn)不一般； 條件句表事實(shí)，條件句表事實(shí)， 主句常用現(xiàn)在時(shí)主句常用現(xiàn)在時(shí) If還有還有“是否是否”意意 , 賓語(yǔ)從句放后邊賓語(yǔ)從句放后邊summary分析試題特點(diǎn)及做題思路：分析試題特點(diǎn)及做題思路：考連詞考連詞- 做題思路做題思路 考時(shí)態(tài)考時(shí)態(tài)-做題思路：做題思路：

7、 分析句子分析句子- 判斷關(guān)系判斷關(guān)系- 選擇正確的選擇正確的if的用法的用法認(rèn)字認(rèn)字- 判斷語(yǔ)境提供的時(shí)態(tài)特點(diǎn)判斷語(yǔ)境提供的時(shí)態(tài)特點(diǎn)- 選擇正選擇正確的時(shí)態(tài)確的時(shí)態(tài)1.Im sure if he _(go) to the party, he_ (have) a great time.2.If the rain _(stop) tonight, we will go to the cinema.3.Ill buy a computer if I _(have) enough money.4.You _(not get) nervous if you _(do ) enough exercise.5.I want to know if he _(come) tomorrow, if he _(come), I _(give) the massage to him. goes will have stopshave wont getdo comes will come will giveExercise:Part