一块三角形地的底是24米,底是高的3倍,这块三角形地的面积是多少平方米?
24÷3=8(米)
24×8÷2
=192÷2
=96(平方米)
答:这块三角形的面积是96平方米.
.下列词语中,加点字的注音正确的一项是
A.煤屑(xiè)船棹(zhào)估量(liánɡ)落蕊(ruǐ)
B.混沌(hún)譬如(pì)瞥见(piē)婆娑(suō)
C.垝垣(ɡuǐ)修禊(qì)蓊郁(wěnɡ)渔樵(qiáo)
D.枕藉(jiè)肄业 (yì)訾詈 (lì)缔造(tì)
选择正的单词填空。
A: What (is / are) you doing, Li Ming ?
B: I'm (pack / packing) my suitcases. Let's unlock it. Here is the key.
A: May I (help / helps) you ?
B: Sure !
A: (Are / Do) you want this jacket ?
B: No, (thanks / please). I want that jacket, please.
A: (How / What) many pairs of socks do you (has / have) ?
B: I have one pair of socks.
A: How many (shirts / shirt) do you have ?
B: One.
A: You need more shirts, (too / to). Do you want this shirt ?
B: Yes, please. That's (me / my) favourite shirt.