六下Unit1 B Let’s read教案及教學反思
dsgsg length(長度)
weight(重量)
teeth(tooth牙齒)
tail
（設計意圖：讓學生對兩種鯨魚的區別有更系統的了解。通過閱讀提示，指導學生如何進行精讀。）
呈現一生完成的表格,全體來確認答案是否正確，確認之后，通過對表格中兩種鯨魚長度、重量、牙齒數量和尾巴長度的比較，逐一呈現下列問題，讓學生進行比較并回答問題。
課件呈現：compare the form and answer the following questions.
1.which whale is shorter?___________________
2.which whale is heavier?__________________
3.who has more (更多的）teeth?
___________________.
4.whose tail is longer?_____________________.
5.which whale is smaller in its size?
______________________.
（設計意圖：通過比較表格中的數字，回答問題，讓學生對兩種鯨魚的區別有更深的了解，同時也鞏固了學生對形容詞比較級的用法。逐一呈現問題的目的是為了減輕學生的心理負擔。）
3。t：now ,let’s read the passage again,then fill in the blanks.（教師鼓勵學生進行討論；教師巡視，對有困難的學生給予幫助。）
let the students read the passage again and fill in the blanks.(閱讀提示：仔細閱讀，小組討論，解決疑難點)。
1a sperm whale is ____than a killer whale in its length.
2.a killer whale is ___ than a sperm whale in its size.
3.asperm whale has 50 teeth.it has ___more teeth than a killer whale.
4 the length of a sperm whale’s tooth is ____cm.
then check the answers together.
（設計意圖：幫助學生加深對本文的理解，提高學生的閱讀技巧。學會小組合作，達到自主學習的目的）
4。listen to the tape and repeat twice .
step4.post—reading
make new dialogues（分角色做對話）
a：how long are you ?
b: i’m ……….
a: how heavy are you ?
b: i’m ……...
a: how many teeth do you have?
b: i have ……….
a: how long is your tail?
b: my tail is ………
a: what is your food?
b: i eat ………..
a: what can you do?
b: i can ………
先教師和學生一起做示范，然后讓學生之間做對話。
（設計意圖：把枯燥的說明文改成對話的形式，減輕可學生閱讀的難度，增加了學生閱讀的興趣，同時也活躍了課堂的氣氛。）
step5。progress
t:this class we learnd something about the sperm whale and killer whale,do you want to know more about the whales?now let’s read the following passage,and do the exercises.
課件呈現：
閱讀短文，判斷對（t）錯（f）。
the whale is the biggest animal in the sea.some whales can be 30 meters long,but some whales are only 1 meters long. the whales live in the water,and they can swim,they look like fish ,so we call them fish.but they are very different from the fish .the little whales drink their mothers’ milk, they are mammals(哺乳動物）.now the people kill（殺） many whales every year.the number of the whales is less and less(越來越少）. so we should protect the whales.