四级作文预测2021十二月 杂交水稻【一】
Recently, there is a popular saying: the world is so large that I want to have a look! As more and more people travel around during their holidays, tourists have brought large sum of money to the local people.
However, too many tourists also bring some problems to the local life. The most serious problem is the pollution caused by the uncivilized tourists. It’s reported that there were thousands of tons of rubbish left after the flag-raising ceremony on Oct. 1st. The uncivilized tourists left their rubbish wherever they go, polluting the local environment. Another problem is the traffic jam caused by so many tourists.
Tourist can promote the economic development of the local areas, but the pollution caused by those uncivilized tourists has brought severe problems. The local tourist authority should set up relative laws to protect the environment of the local areas, and every tourist obey the laws and help to make the places of tourist more beautiful!
四级作文预测2021十二月 杂交水稻【二】
四级作文预测2021十二月 杂交水稻【三】
早晨，外婆带我去田里给田鱼喂食。 来到田间，那三五成群的田鱼，有的相互追逐，有的扇尾嬉水，有的拱土觅食，还有的跃出水面，把田水搅浊……玩得多欢啊！外婆把鱼食洒向田间，鱼儿纷纷赶来竞食，你争我夺，上下翻腾，搅得满田浊水，只见几道画过的`水痕和翻滚的水花，再也瞧不见鱼儿了。 看到这些，我不禁问外婆，为什么不把田里的泥挖掉，多蓄些水，多养些鱼呢？ 外婆听了，哈哈一笑，说：“你问这话，不就见外行了不是。田鱼村之所以能成为全国的典范，其根本一条就是在水土综合利用上做文章。现在我们给田鱼喂些谷子米糠之类，再过些时日，待田里种上水稻后，就不再给田鱼送吃的了。” “那田鱼没有吃的，不是要饿坏了吗？”我连忙接嘴说，生怕田鱼挨饿。“它才不会挨饿呢！”外婆接着说：“你想想，水稻身上的昆虫和稻花都是田鱼喜欢吃的食物，吃也吃不完。所以，田鱼到了秋收时，已长得很肥，便好上市了。” 外婆的话，使我几乎明白了田鱼靠水稻养肥的道理。既然是综合利用，那么田鱼对水稻又有什么益处呢？鱼稻之间是否还有其他关系？我疑惑了，陷入深思之中。外婆似乎看穿了我的困惑，继续说：“俗语云‘麦吃细泥，稻吃混水’。田鱼的习性喜欢拱土，用嘴巴在泥土中寻找小虫和水藻，代替了人工耘田。田里的水常混，水稻的根系就发达，同时，鱼屎又给水稻提供了肥料……”外婆朴实的语言，使我恍然大悟：“是呀！田鱼靠水稻养肥，水稻靠田鱼长壮。水稻和田鱼互相生存，相互依赖，各取所需。这就叫做综合利用。”我急匆匆地说，生怕话要被人抢去似的。 外婆那娓娓动听的讲述深深地吸引了我，我从心底里佩服外婆。外婆所说的，都是我素不知道的。想不到田鱼和水稻也有这么密切的关系。
今晨，外婆又给我上了别开生面的一堂科技课——稻田养田鱼
四级作文预测2021十二月 杂交水稻【四】
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Different people have different views on_____.Some people think that_____,whereas others aegue that __________.
As far as I am concerned, I agree with the opinion that ___________.For one thing,I firmly believe that ___________.For another,_____________.Just think of________,who/which_______.
Taking all these factors into consideration,we may safely come to the conclusion that______.Only if_______can we _______,just as the saying goes,________________.
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In recent years there have been many reports of ________.It turns a new chapter of _________in China,and will have far-reaching effects in the forthcoming years.
The biggest benefit,in my eyes,is that_______.In addition,_______.Finally,______________.
Apart from the benefits mentioned above,we should also face several unavoidable challenges.In the first place,_____________.In the second place,________.What’s more,_______________.In summary,we should_______________.
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Nowadays more and more ______are commonly and widely used in everyday life,ranging from __________to_____________.
The popularity of _______will have a great influence on ______.On the one hand,_________.On the other hand,__________.
To conclude,____________are just like a double-edged sword.With them we may________.However,one point should be kept in mind that we should make sensible use,always being a master instead of slaving of them.
