两道英语单选1、 Being fit helps you to stay alert and ______your le

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两道英语单选
1、 Being fit helps you to stay alert and ______your lessons.
A.focused on B.focusing on C.was focused on D.focuses on
我觉得应该填focuse on啊,究竟是怎么回事.
2、 When we got to the top of the mountain after three hours' climbing,our legs almost ______ under us.
A.gave away B.gave in C.gave up D.gave out
这四个选项什么意思?
不要只写出答案,告诉我为什么.

Being fit helps you to stay alert and ______your lessons.
A.focused on B.focusing on C.was focused on D.focuses on
选B,
关键你看后面stay.指保持某种状态.接alert和focusing on这两个并列的情况.
翻译：“保持健康有助于你处于灵敏的状态并且能够在学习上集中注意力”
When we got to the top of the mountain after three hours' climbing,our legs almost ______ under us.
A.gave away B.gave in C.gave up D.gave out
选D
翻译“3个小时后我们爬到山顶上,双腿已经筋疲力尽了”
give away送掉,分发,放弃,泄露,出卖,让步,陷下
give in 投降,屈服,让步,交上,宣布
give up 放弃(念头、希望等),停止,抛弃,认输,把...送交
give out 分发,发出(气味、热等),发表,用尽,精疲力竭

you.eat to stay fit and.keep 阅读答案 Regular exercise helps to keep you fit and healthy,____ in t ()happy helps you stay well.smelling;being;sounding;making Being happy helps you stay well.为什么是Being happy stay well在这里 ___ you correct food foods ___be able to keep fit and stay h bless you stay fit Be sure to stay alert when you're walking alone at night.怎么翻 Be sure to stay alert when you're walking alone at night.从句为（） happy helps you stay well.A：Smelling B：Being C：Souding D --------- happy helps you stay well A smell B Being C Soudin 英语改句子4题1give up if you want to stay fit ( 改为否定句 )（）（）up if 7道英语单选!1.The tourist wanted to stay in ________________ Gran