<h3>👉👉👉（1）20—90的整十数都以-ty结尾 </h3><h3>sixty60，seventy70，ninety90 </h3><h3>其中twenty20，thirty30，forty40，fifty50，eighty80的拼写比较特殊。</h3><h3>👉👉👉（2）hundred: 百 </h3><h3>在表示具体的数目时，hundred后面不加-s，也不加of。 </h3><h3>例：three hundred 300 ，five hundred 500</h3> <h3>重点句子：</h3><h3>1. How many books are there on my desk, Jenny?</h3><h3>(我的桌子上有多少本书，詹妮？)</h3><h3>“How many+可数名词的复数+are there?”用于询问有多少……？</h3><h3>2. There are eight books.</h3><h3>(有八本书。)</h3><h3>句型构成：“There is +可数名词的单数/不可数名词+（地点）</h3><h3>There are +可数名词的复数+（地点）”</h3><h3>3. Let’s put…on…</h3><h3>(让我们把……放在……的上面)</h3> <h3>13—19的基数词都以-teen结尾 </h3><h3>fourteen14,sixteen16,seventeen17,nineteen19 </h3><h3>其中thirteen13,fifteen15,eighteen18的拼写比较特殊。</h3> <h3>Xue Yuting</h3> <h3>Yin Chensu</h3> <h3>Wang Sijia</h3> <h3>Luo Yutong</h3> <h3>Qiao Yifan</h3> <h3>Yin Chensu</h3> <h3>Hou Tianyi</h3> <h3>Weigao Jinang</h3> <h3>Yan Haotian</h3> <h3>Liu Zixuan</h3> <h3>Li Haolin</h3> <h3>Xi Jinhao</h3> <h3>Xue Yuting</h3> <h3>Hou Tianyi</h3> <h3>1—12的基数词是独立的单词，有其各自的形式： </h3><h3>one 1，two 2，three 3，four 4，five 5，six 6，seven 7，eight 8，nine 9，ten 10，eleven 11，twelve 12</h3>